{"dataType": "CVE_RECORD", "dataVersion": "5.2", "cveMetadata": {"cveId": "CVE-2026-121808", "assignerOrgId": "6b3ad84c-e1a6-4bf7-a703-f496b71e49db", "state": "PUBLISHED", "assignerShortName": "EEF", "dateReserved": "2026-11-09T22:35:50.462Z", "datePublished": "2026-11-13T15:48:49.871Z", "dateUpdated": "2026-11-13T15:48:49.871Z"}, "containers": {"cna": {"affected": [{"collectionURL": "https://repo.hex.pm", "cpes": ["cpe:2.3:a:elixir-grpc:grpc:*:*:*:*:*:*:*:*"], "defaultStatus": "unaffected", "modules": ["'Elixir.GRPC.Codec.Erlpack'"], "packageName": "grpc", "packageURL": "pkg:hex/grpc", "product": "grpc", "programFiles": ["lib/grpc/codec/erlpack.ex"], "programRoutines": [{"name": "'Elixir.GRPC.Codec.Erlpack':decode/2"}], "repo": "https://github.com/elixir-grpc/grpc", "vendor": "elixir-grpc", "versions": [{"lessThan": "1.0.0", "status": "affected", "version": "0.4.0", "versionType": "semver"}]}, {"collectionURL": "https://github.com", "cpes": ["cpe:2.3:a:elixir-grpc:grpc:*:*:*:*:*:*:*:*"], "defaultStatus": "unaffected", "modules": ["'Elixir.GRPC.Codec.Erlpack'"], "packageName": "elixir-grpc/grpc", "packageURL": "pkg:github/elixir-grpc/grpc", "product": "grpc", "programFiles": ["lib/grpc/codec/erlpack.ex"], "programRoutines": [{"name": "'Elixir.GRPC.Codec.Erlpack':decode/2"}], "repo": "https://github.com/elixir-grpc/grpc", "vendor": "elixir-grpc", "versions": [{"lessThan": "0332faae5f5e132314794dbfdae5edecbccea292", "status": "affected", "version": "25bcc569fe2cc4478531a6c546c923205fc751c9", "versionType": "git"}]}, {"collectionURL": "https://repo.hex.pm", "cpes": ["cpe:2.3:a:elixir-grpc:grpc_core:*:*:*:*:*:*:*:*"], "defaultStatus": "unaffected", "modules": ["'Elixir.GRPC.Codec.Erlpack'"], "packageName": "grpc_core", "packageURL": "pkg:hex/grpc_core", "product": "grpc_core", "programFiles": ["lib/grpc/codec/erlpack.ex"], "programRoutines": [{"name": "'Elixir.GRPC.Codec.Erlpack':decode/2"}], "repo": "https://github.com/elixir-grpc/grpc", "vendor": "elixir-grpc", "versions": [{"lessThan": "1.1.0", "status": "affected", "version": "1.0.0", "versionType": "semver"}]}, {"collectionURL": "https://github.com", "cpes": ["cpe:2.3:a:elixir-grpc:grpc_core:*:*:*:*:*:*:*:*"], "defaultStatus": "unaffected", "modules": ["'Elixir.GRPC.Codec.Erlpack'"], "packageName": "elixir-grpc/grpc", "packageURL": "pkg:github/elixir-grpc/grpc", "product": "grpc_core", "programFiles": ["grpc_core/lib/grpc/codec/erlpack.ex"], "programRoutines": [{"name": "'Elixir.GRPC.Codec.Erlpack':decode/2"}], "repo": "https://github.com/elixir-grpc/grpc", "vendor": "elixir-grpc", "versions": [{"lessThan": "d6bc56ac75dfb6c02db2099909210a37c9be8db6", "status": "affected", "version": "0332faae5f5e132314794dbfdae5edecbccea292", "versionType": "git"}]}], "configurations": [{"lang": "en", "supportingMedia": [{"base64": false, "type": "text/html", "value": "<p><code>GRPC.Codec.Erlpack</code> must be explicitly registered as a codec on the gRPC server.</p>"}, {"base64": false, "type": "text/markdown", "value": "`GRPC.Codec.Erlpack` must be explicitly registered as a codec on the gRPC server."}], "value": "GRPC.Codec.Erlpack must be explicitly registered as a codec on the gRPC server."}], "cpeApplicability": [{"nodes": [{"cpeMatch": [{"criteria": "cpe:2.3:a:elixir-grpc:grpc:*:*:*:*:*:*:*:*", "versionEndExcluding": "1.0.0", "versionStartIncluding": "0.4.0", "vulnerable": true}, {"criteria": "cpe:2.3:a:elixir-grpc:grpc_core:*:*:*:*:*:*:*:*", "versionEndExcluding": "1.1.0", "versionStartIncluding": "1.0.0", "vulnerable": true}], "negate": false, "operator": "OR"}], "operator": "AND"}], "credits": [{"lang": "en", "type": "reporter", "value": "Jace"}, {"lang": "en", "type": "finder", "value": "zx"}, {"lang": "en", "type": "reporter", "value": "zx"}, {"lang": "en", "type": "finder", "value": "Jiacheng Zhong"}, {"lang": "en", "type": "finder", "value": "Zhun Wang"}, {"lang": "en", "type": "finder", "value": "Junmin Zhu"}, {"lang": "en", "type": "finder", "value": "Hongwei Li"}, {"lang": "en", "type": "finder", "value": "Han Dai"}, {"lang": "en", "type": "finder", "value": "Suyue Guo"}, {"lang": "en", "type": "finder", "value": "Songyang Peng"}, {"lang": "en", "type": "finder", "value": "Ziyue Pan"}, {"lang": "en", "type": "reporter", "value": "Hongwei Li"}, {"lang": "en", "type": "remediation developer", "value": "Paulo Valente"}, {"lang": "en", "type": "coordinator", "value": "Jonatan M\u00e4nnchen / EEF"}, {"lang": "en", "type": "coordinator", "value": "Peter Ullrich"}], "dateAssigned": "2026-11-12T20:11:46.000Z", "descriptions": [{"lang": "en", "supportingMedia": [{"base64": false, "type": "text/html", "value": "<p>Improper Handling of Highly Compressed Data (Data Amplification) vulnerability in elixir-grpc grpc_core and grpc allows unauthenticated attackers to exhaust server memory via a compressed Erlang external term in a gRPC message body.</p>\n<p><code>GRPC.Codec.Erlpack.decode/2</code> (<code>grpc_core/lib/grpc/codec/erlpack.ex</code>, and <code>lib/grpc/codec/erlpack.ex</code> before the package split) passes the message body to <code>:erlang.binary_to_term/2</code>. That function inflates a compressed term in full before it returns. The codec sets no limit on the decoded size, and its type checks run only on the decoded term. The server's <code>max_body_size</code> limit counts the compressed bytes of the request. A request with <code>Content-Type: application/grpc+erlpack</code> can therefore make the server allocate a term much larger than the request body.</p>\n<p>This issue affects grpc: from 0.4.0 before 1.0.0; grpc_core: from 1.0.0 before 1.1.0.</p>"}, {"base64": false, "type": "text/markdown", "value": "Improper Handling of Highly Compressed Data (Data Amplification) vulnerability in elixir-grpc grpc_core and grpc allows unauthenticated attackers to exhaust server memory via a compressed Erlang external term in a gRPC message body.\n\n`GRPC.Codec.Erlpack.decode/2` (`grpc_core/lib/grpc/codec/erlpack.ex`, and `lib/grpc/codec/erlpack.ex` before the package split) passes the message body to `:erlang.binary_to_term/2`. That function inflates a compressed term in full before it returns. The codec sets no limit on the decoded size, and its type checks run only on the decoded term. The server's `max_body_size` limit counts the compressed bytes of the request. A request with `Content-Type: application/grpc+erlpack` can therefore make the server allocate a term much larger than the request body.\n\nThis issue affects grpc: from 0.4.0 before 1.0.0; grpc_core: from 1.0.0 before 1.1.0."}], "value": "Improper Handling of Highly Compressed Data (Data Amplification) vulnerability in elixir-grpc grpc_core and grpc allows unauthenticated attackers to exhaust server memory via a compressed Erlang external term in a gRPC message body.\n\nGRPC.Codec.Erlpack.decode/2 (grpc_core/lib/grpc/codec/erlpack.ex, and lib/grpc/codec/erlpack.ex before the package split) passes the message body to :erlang.binary_to_term/2. That function inflates a compressed term in full before it returns. The codec sets no limit on the decoded size, and its type checks run only on the decoded term. The server's max_body_size limit counts the compressed bytes of the request. A request with Content-Type: application/grpc+erlpack can therefore make the server allocate a term much larger than the request body.\n\nThis issue affects grpc: from 0.4.0 before 1.0.0; grpc_core: from 1.0.0 before 1.1.0."}], "impacts": [{"capecId": "CAPEC-130", "descriptions": [{"lang": "en", "supportingMedia": [{"base64": false, "type": "text/html", "value": "<p>An unauthenticated client can make a server that registers the Erlpack codec allocate memory far beyond the size of the request with one request. Memory exhaustion affects every service on that node.</p>"}, {"base64": false, "type": "text/markdown", "value": "An unauthenticated client can make a server that registers the Erlpack codec allocate memory far beyond the size of the request with one request. Memory exhaustion affects every service on that node."}], "value": "An unauthenticated client can make a server that registers the Erlpack codec allocate memory far beyond the size of the request with one request. Memory exhaustion affects every service on that node."}]}], "metrics": [{"cvssV4_0": {"Automatable": "NOT_DEFINED", "Recovery": "NOT_DEFINED", "Safety": "NOT_DEFINED", "attackComplexity": "LOW", "attackRequirements": "PRESENT", "attackVector": "NETWORK", "baseScore": 8.2, "baseSeverity": "HIGH", "privilegesRequired": "NONE", "providerUrgency": "NOT_DEFINED", "subAvailabilityImpact": "NONE", "subConfidentialityImpact": "NONE", "subIntegrityImpact": "NONE", "userInteraction": "NONE", "valueDensity": "NOT_DEFINED", "vectorString": "CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N", "version": "4.0", "vulnAvailabilityImpact": "HIGH", "vulnConfidentialityImpact": "NONE", "vulnIntegrityImpact": "NONE", "vulnerabilityResponseEffort": "NOT_DEFINED"}, "format": "CVSS", "scenarios": [{"lang": "en", "value": "GENERAL"}]}], "problemTypes": [{"descriptions": [{"cweId": "CWE-409", "description": "CWE-409 Improper Handling of Highly Compressed Data (Data Amplification)", "lang": "en", "type": "CWE"}]}], "providerMetadata": {"orgId": "6b3ad84c-e1a6-4bf7-a703-f496b71e49db", "shortName": "EEF", "dateUpdated": "2026-11-13T15:48:49.871Z"}, "references": [{"name": "Memory exhaustion via compressed Erlang terms in the elixir-grpc Erlpack codec", "tags": ["vendor-advisory", "related"], "url": "https://github.com/elixir-grpc/grpc/security/advisories/GHSA-xxp9-7hp4-rqwp"}, {"name": "EEF CNA record for CVE-2026-121808", "tags": ["related"], "url": "https://cna.erlef.org/cves/CVE-2026-121808.html"}, {"name": "OSV record EEF-CVE-2026-121808", "tags": ["related"], "url": "https://osv.dev/vulnerability/EEF-CVE-2026-121808"}, {"name": "Introducing commit 25bcc56 in elixir-grpc/grpc", "tags": ["related"], "url": "https://github.com/elixir-grpc/grpc/commit/25bcc569fe2cc4478531a6c546c923205fc751c9"}, {"name": "Fix commit 0332faa in elixir-grpc/grpc", "tags": ["patch"], "url": "https://github.com/elixir-grpc/grpc/commit/0332faae5f5e132314794dbfdae5edecbccea292"}, {"name": "Fix commit d6bc56a in elixir-grpc/grpc", "tags": ["patch"], "url": "https://github.com/elixir-grpc/grpc/commit/d6bc56ac75dfb6c02db2099909210a37c9be8db6"}], "source": {"discovery": "EXTERNAL"}, "title": "Memory exhaustion via compressed Erlang terms in the elixir-grpc Erlpack codec", "workarounds": [{"lang": "en", "supportingMedia": [{"base64": false, "type": "text/html", "value": "<p>Remove <code>GRPC.Codec.Erlpack</code> from the server's <code>codecs</code> list if the codec is not needed.</p>\n<p>If the codec is needed, register a wrapper codec in its place. The wrapper implements the <code>GRPC.Codec</code> behaviour, returns <code>\"erlpack\"</code> from <code>name/0</code>, raises in <code>decode/2</code> when the body starts with the bytes <code>131, 80</code> (the compressed term tag), and delegates all other calls to <code>GRPC.Codec.Erlpack</code>.</p>"}, {"base64": false, "type": "text/markdown", "value": "Remove `GRPC.Codec.Erlpack` from the server's `codecs` list if the codec is not needed.\n\nIf the codec is needed, register a wrapper codec in its place. The wrapper implements the `GRPC.Codec` behaviour, returns `\"erlpack\"` from `name/0`, raises in `decode/2` when the body starts with the bytes `131, 80` (the compressed term tag), and delegates all other calls to `GRPC.Codec.Erlpack`."}], "value": "Remove GRPC.Codec.Erlpack from the server's codecs list if the codec is not needed.\n\nIf the codec is needed, register a wrapper codec in its place. The wrapper implements the GRPC.Codec behaviour, returns \"erlpack\" from name/0, raises in decode/2 when the body starts with the bytes 131, 80 (the compressed term tag), and delegates all other calls to GRPC.Codec.Erlpack."}], "x_proofOfConcept": [{"lang": "en", "supportingMedia": [{"base64": false, "type": "text/html", "value": "<ol>\n<li>Start a gRPC server that registers <code>GRPC.Codec.Erlpack</code> in its <code>codecs</code> list.</li>\n<li>Build the payload with <code>:erlang.term_to_binary(:binary.copy(&lt;&lt;0&gt;&gt;, 268_435_456), [:compressed])</code>. The result is 260,932 bytes.</li>\n<li>Send the payload as one uncompressed gRPC message (compressed flag 0) to any method of the server, with <code>Content-Type: application/grpc+erlpack</code>.</li>\n<li>Observe that the server allocates the 268,435,456-byte binary and passes it to the application callback.</li>\n</ol>"}, {"base64": false, "type": "text/markdown", "value": "1. Start a gRPC server that registers `GRPC.Codec.Erlpack` in its `codecs` list.\n2. Build the payload with `:erlang.term_to_binary(:binary.copy(<<0>>, 268_435_456), [:compressed])`. The result is 260,932 bytes.\n3. Send the payload as one uncompressed gRPC message (compressed flag 0) to any method of the server, with `Content-Type: application/grpc+erlpack`.\n4. Observe that the server allocates the 268,435,456-byte binary and passes it to the application callback."}], "value": "* Start a gRPC server that registers GRPC.Codec.Erlpack in its codecs list.\n* Build the payload with :erlang.term_to_binary(:binary.copy(<<0>>, 268_435_456), [:compressed]). The result is 260,932 bytes.\n* Send the payload as one uncompressed gRPC message (compressed flag 0) to any method of the server, with Content-Type: application/grpc+erlpack.\n* Observe that the server allocates the 268,435,456-byte binary and passes it to the application callback."}], "x_technicalAnalysis": [{"lang": "en", "supportingMedia": [{"base64": false, "type": "text/html", "value": "<p><strong>1. Codec selection</strong></p>\n<p>The server selects the codec from the request <code>Content-Type</code>. <code>application/grpc+erlpack</code> selects <code>GRPC.Codec.Erlpack</code> when the server registers it. No authentication step comes before this.</p>\n<p><strong>2. Size limit on compressed bytes only</strong></p>\n<p>The server limits the request body with <code>max_body_size</code>, which counts the bytes received. With the gRPC compressed flag set to 0, the transport decompression limit does not apply, and the message reaches the codec unchanged.</p>\n<p><strong>3. Expansion inside <code>binary_to_term/2</code></strong></p>\n<p><code>GRPC.Codec.Erlpack.decode/2</code> calls <code>:erlang.binary_to_term(binary, [:safe])</code>. The Erlang external term format has a compressed form (version byte 131, tag 80, a 32-bit uncompressed size, then a zlib stream). <code>binary_to_term/2</code> inflates it in full, and the <code>:safe</code> option does not limit the size. <code>ensure_safe_term!/1</code> runs after the call returns and accepts a large binary.</p>\n<p><strong>4. Result</strong></p>\n<p>In a test against grpc_server 1.0.6, a 260,932-byte request body decoded to a 268,435,456-byte binary, which the server passed to the application callback.</p>"}, {"base64": false, "type": "text/markdown", "value": "**1. Codec selection**\n\nThe server selects the codec from the request `Content-Type`. `application/grpc+erlpack` selects `GRPC.Codec.Erlpack` when the server registers it. No authentication step comes before this.\n\n**2. Size limit on compressed bytes only**\n\nThe server limits the request body with `max_body_size`, which counts the bytes received. With the gRPC compressed flag set to 0, the transport decompression limit does not apply, and the message reaches the codec unchanged.\n\n**3. Expansion inside `binary_to_term/2`**\n\n`GRPC.Codec.Erlpack.decode/2` calls `:erlang.binary_to_term(binary, [:safe])`. The Erlang external term format has a compressed form (version byte 131, tag 80, a 32-bit uncompressed size, then a zlib stream). `binary_to_term/2` inflates it in full, and the `:safe` option does not limit the size. `ensure_safe_term!/1` runs after the call returns and accepts a large binary.\n\n**4. Result**\n\nIn a test against grpc_server 1.0.6, a 260,932-byte request body decoded to a 268,435,456-byte binary, which the server passed to the application callback."}], "value": "1. Codec selection\n\nThe server selects the codec from the request Content-Type. application/grpc+erlpack selects GRPC.Codec.Erlpack when the server registers it. No authentication step comes before this.\n\n2. Size limit on compressed bytes only\n\nThe server limits the request body with max_body_size, which counts the bytes received. With the gRPC compressed flag set to 0, the transport decompression limit does not apply, and the message reaches the codec unchanged.\n\n3. Expansion inside binary_to_term/2\n\nGRPC.Codec.Erlpack.decode/2 calls :erlang.binary_to_term(binary, [:safe]). The Erlang external term format has a compressed form (version byte 131, tag 80, a 32-bit uncompressed size, then a zlib stream). binary_to_term/2 inflates it in full, and the :safe option does not limit the size. ensure_safe_term!/1 runs after the call returns and accepts a large binary.\n\n4. Result\n\nIn a test against grpc_server 1.0.6, a 260,932-byte request body decoded to a 268,435,456-byte binary, which the server passed to the application callback."}]}}}

{}

{"affected": [{"affectedData": [{"collectionURL": "https://repo.hex.pm", "cpes": ["cpe:2.3:a:elixir-grpc:grpc:*:*:*:*:*:*:*:*"], "defaultStatus": "unaffected", "modules": ["'Elixir.GRPC.Codec.Erlpack'"], "packageName": "grpc", "packageURL": "pkg:hex/grpc", "product": "grpc", "programFiles": ["lib/grpc/codec/erlpack.ex"], "programRoutines": [{"name": "'Elixir.GRPC.Codec.Erlpack':decode/2"}], "repo": "https://github.com/elixir-grpc/grpc", "vendor": "elixir-grpc", "versions": [{"lessThan": "1.0.0", "status": "affected", "version": "0.4.0", "versionType": "semver"}]}, {"collectionURL": "https://github.com", "cpes": ["cpe:2.3:a:elixir-grpc:grpc:*:*:*:*:*:*:*:*"], "defaultStatus": "unaffected", "modules": ["'Elixir.GRPC.Codec.Erlpack'"], "packageName": "elixir-grpc/grpc", "packageURL": "pkg:github/elixir-grpc/grpc", "product": "grpc", "programFiles": ["lib/grpc/codec/erlpack.ex"], "programRoutines": [{"name": "'Elixir.GRPC.Codec.Erlpack':decode/2"}], "repo": "https://github.com/elixir-grpc/grpc", "vendor": "elixir-grpc", "versions": [{"lessThan": "0332faae5f5e132314794dbfdae5edecbccea292", "status": "affected", "version": "25bcc569fe2cc4478531a6c546c923205fc751c9", "versionType": "git"}]}, {"collectionURL": "https://repo.hex.pm", "cpes": ["cpe:2.3:a:elixir-grpc:grpc_core:*:*:*:*:*:*:*:*"], "defaultStatus": "unaffected", "modules": ["'Elixir.GRPC.Codec.Erlpack'"], "packageName": "grpc_core", "packageURL": "pkg:hex/grpc_core", "product": "grpc_core", "programFiles": ["lib/grpc/codec/erlpack.ex"], "programRoutines": [{"name": "'Elixir.GRPC.Codec.Erlpack':decode/2"}], "repo": "https://github.com/elixir-grpc/grpc", "vendor": "elixir-grpc", "versions": [{"lessThan": "1.1.0", "status": "affected", "version": "1.0.0", "versionType": "semver"}]}, {"collectionURL": "https://github.com", "cpes": ["cpe:2.3:a:elixir-grpc:grpc_core:*:*:*:*:*:*:*:*"], "defaultStatus": "unaffected", "modules": ["'Elixir.GRPC.Codec.Erlpack'"], "packageName": "elixir-grpc/grpc", "packageURL": "pkg:github/elixir-grpc/grpc", "product": "grpc_core", "programFiles": ["grpc_core/lib/grpc/codec/erlpack.ex"], "programRoutines": [{"name": "'Elixir.GRPC.Codec.Erlpack':decode/2"}], "repo": "https://github.com/elixir-grpc/grpc", "vendor": "elixir-grpc", "versions": [{"lessThan": "d6bc56ac75dfb6c02db2099909210a37c9be8db6", "status": "affected", "version": "0332faae5f5e132314794dbfdae5edecbccea292", "versionType": "git"}]}], "source": "6b3ad84c-e1a6-4bf7-a703-f496b71e49db"}], "cveTags": [], "descriptions": [{"lang": "en", "value": "Improper Handling of Highly Compressed Data (Data Amplification) vulnerability in elixir-grpc grpc_core and grpc allows unauthenticated attackers to exhaust server memory via a compressed Erlang external term in a gRPC message body.\n\nGRPC.Codec.Erlpack.decode/2 (grpc_core/lib/grpc/codec/erlpack.ex, and lib/grpc/codec/erlpack.ex before the package split) passes the message body to :erlang.binary_to_term/2. That function inflates a compressed term in full before it returns. The codec sets no limit on the decoded size, and its type checks run only on the decoded term. The server's max_body_size limit counts the compressed bytes of the request. A request with Content-Type: application/grpc+erlpack can therefore make the server allocate a term much larger than the request body.\n\nThis issue affects grpc: from 0.4.0 before 1.0.0; grpc_core: from 1.0.0 before 1.1.0."}], "id": "CVE-2026-121808", "lastModified": "2026-11-13T16:17:36.760", "metrics": {"cvssMetricV40": [{"cvssData": {"Automatable": "NOT_DEFINED", "Recovery": "NOT_DEFINED", "Safety": "NOT_DEFINED", "attackComplexity": "LOW", "attackRequirements": "PRESENT", "attackVector": "NETWORK", "availabilityRequirement": "NOT_DEFINED", "baseScore": 8.2, "baseSeverity": "HIGH", "confidentialityRequirement": "NOT_DEFINED", "exploitMaturity": "NOT_DEFINED", "integrityRequirement": "NOT_DEFINED", "modifiedAttackComplexity": "NOT_DEFINED", "modifiedAttackRequirements": "NOT_DEFINED", "modifiedAttackVector": "NOT_DEFINED", "modifiedPrivilegesRequired": "NOT_DEFINED", "modifiedSubAvailabilityImpact": "NOT_DEFINED", "modifiedSubConfidentialityImpact": "NOT_DEFINED", "modifiedSubIntegrityImpact": "NOT_DEFINED", "modifiedUserInteraction": "NOT_DEFINED", "modifiedVulnAvailabilityImpact": "NOT_DEFINED", "modifiedVulnConfidentialityImpact": "NOT_DEFINED", "modifiedVulnIntegrityImpact": "NOT_DEFINED", "privilegesRequired": "NONE", "providerUrgency": "NOT_DEFINED", "subAvailabilityImpact": "NONE", "subConfidentialityImpact": "NONE", "subIntegrityImpact": "NONE", "userInteraction": "NONE", "valueDensity": "NOT_DEFINED", "vectorString": "CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X", "version": "4.0", "vulnAvailabilityImpact": "HIGH", "vulnConfidentialityImpact": "NONE", "vulnIntegrityImpact": "NONE", "vulnerabilityResponseEffort": "NOT_DEFINED"}, "source": "6b3ad84c-e1a6-4bf7-a703-f496b71e49db", "type": "Secondary"}]}, "published": "2026-11-13T16:17:36.760", "references": [{"source": "6b3ad84c-e1a6-4bf7-a703-f496b71e49db", "url": "https://cna.erlef.org/cves/CVE-2026-121808.html"}, {"source": "6b3ad84c-e1a6-4bf7-a703-f496b71e49db", "url": "https://github.com/elixir-grpc/grpc/commit/0332faae5f5e132314794dbfdae5edecbccea292"}, {"source": "6b3ad84c-e1a6-4bf7-a703-f496b71e49db", "url": "https://github.com/elixir-grpc/grpc/commit/25bcc569fe2cc4478531a6c546c923205fc751c9"}, {"source": "6b3ad84c-e1a6-4bf7-a703-f496b71e49db", "url": "https://github.com/elixir-grpc/grpc/commit/d6bc56ac75dfb6c02db2099909210a37c9be8db6"}, {"source": "6b3ad84c-e1a6-4bf7-a703-f496b71e49db", "url": "https://github.com/elixir-grpc/grpc/security/advisories/GHSA-xxp9-7hp4-rqwp"}, {"source": "6b3ad84c-e1a6-4bf7-a703-f496b71e49db", "url": "https://osv.dev/vulnerability/EEF-CVE-2026-121808"}], "sourceIdentifier": "6b3ad84c-e1a6-4bf7-a703-f496b71e49db", "vulnStatus": "Received", "weaknesses": [{"description": [{"lang": "en", "value": "CWE-409"}], "source": "6b3ad84c-e1a6-4bf7-a703-f496b71e49db", "type": "Secondary"}]}

{}

{"affected": [{"configurations": [{"platform": null, "status": "affected", "versions": {"scheme": "semver", "value": "[0.4.0,1.0.0)"}}], "enrichment": {"confidence": 95.0, "confidence_source": "inferred", "scores": [{"score": 95.0, "source": "inferred"}, {"score": 100.0, "source": "matching"}]}, "original": {"product": "grpc", "source": "cna", "vendor": "elixir-grpc"}, "product": "grpc", "vendor": "elixir-grpc"}, {"configurations": [{"platform": null, "status": "affected", "versions": {"scheme": "code_commit", "value": "[25bcc569fe2cc4478531a6c546c923205fc751c9,0332faae5f5e132314794dbfdae5edecbccea292)"}}], "enrichment": {"confidence": 95.0, "confidence_source": "inferred", "scores": [{"score": 95.0, "source": "inferred"}, {"score": 100.0, "source": "matching"}]}, "original": {"product": "grpc", "source": "cna", "vendor": "elixir-grpc"}, "product": "grpc", "vendor": "elixir-grpc"}, {"configurations": [{"platform": null, "status": "affected", "versions": {"scheme": "semver", "value": "[1.0.0,1.1.0)"}}], "enrichment": {"confidence": 95.0, "confidence_source": "inferred", "scores": [{"score": 95.0, "source": "inferred"}, {"score": 100.0, "source": "matching"}]}, "original": {"product": "grpc_core", "source": "cna", "vendor": "elixir-grpc"}, "product": "grpc_core", "vendor": "elixir-grpc"}, {"configurations": [{"platform": null, "status": "affected", "versions": {"scheme": "code_commit", "value": "[0332faae5f5e132314794dbfdae5edecbccea292,d6bc56ac75dfb6c02db2099909210a37c9be8db6)"}}], "enrichment": {"confidence": 95.0, "confidence_source": "inferred", "scores": [{"score": 95.0, "source": "inferred"}, {"score": 100.0, "source": "matching"}]}, "original": {"product": "grpc_core", "source": "cna", "vendor": "elixir-grpc"}, "product": "grpc_core", "vendor": "elixir-grpc"}], "created": "2026-11-13T19:30:21.690672+00:00", "updated": "2026-11-13T19:30:21.690717+00:00", "vendors": ["elixir-grpc", "elixir-grpc$PRODUCT$grpc", "elixir-grpc$PRODUCT$grpc_core"]}