{"dataType": "CVE_RECORD", "dataVersion": "5.2", "cveMetadata": {"cveId": "CVE-2026-63639", "assignerOrgId": "a0819718-46f1-4df5-94e2-005712e83aaa", "state": "PUBLISHED", "assignerShortName": "GitHub_M", "dateReserved": "2026-07-17T14:11:15.482Z", "datePublished": "2026-08-18T14:23:52.508Z", "dateUpdated": "2026-08-18T14:23:52.508Z"}, "containers": {"cna": {"title": "Valkey: UAF in stream deserialization may lead to remote code execution", "problemTypes": [{"descriptions": [{"cweId": "CWE-416", "lang": "en", "description": "CWE-416: Use After Free", "type": "CWE"}]}], "metrics": [{"cvssV3_1": {"attackComplexity": "LOW", "attackVector": "NETWORK", "availabilityImpact": "HIGH", "baseScore": 8.8, "baseSeverity": "HIGH", "confidentialityImpact": "HIGH", "integrityImpact": "HIGH", "privilegesRequired": "LOW", "scope": "UNCHANGED", "userInteraction": "NONE", "vectorString": "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H", "version": "3.1"}}], "references": [{"name": "https://github.com/valkey-io/valkey/security/advisories/GHSA-mvcj-73cw-22m4", "tags": ["x_refsource_CONFIRM"], "url": "https://github.com/valkey-io/valkey/security/advisories/GHSA-mvcj-73cw-22m4"}, {"name": "https://github.com/valkey-io/valkey/pull/4073", "tags": ["x_refsource_MISC"], "url": "https://github.com/valkey-io/valkey/pull/4073"}, {"name": "https://github.com/valkey-io/valkey/commit/06bc7768fe609f2054e69ccedefe7628f5675da9", "tags": ["x_refsource_MISC"], "url": "https://github.com/valkey-io/valkey/commit/06bc7768fe609f2054e69ccedefe7628f5675da9"}, {"name": "https://github.com/valkey-io/valkey/commit/509cb3c74e8cbc9c0498ebe8b6c93dcd605e7271", "tags": ["x_refsource_MISC"], "url": "https://github.com/valkey-io/valkey/commit/509cb3c74e8cbc9c0498ebe8b6c93dcd605e7271"}, {"name": "https://github.com/valkey-io/valkey/commit/98465eaffe3f95524a5046318bfbc4bdb9798291", "tags": ["x_refsource_MISC"], "url": "https://github.com/valkey-io/valkey/commit/98465eaffe3f95524a5046318bfbc4bdb9798291"}, {"name": "https://github.com/valkey-io/valkey/commit/e95911d4d65be8789fa3705f44d7ed1e65378445", "tags": ["x_refsource_MISC"], "url": "https://github.com/valkey-io/valkey/commit/e95911d4d65be8789fa3705f44d7ed1e65378445"}, {"name": "https://github.com/valkey-io/valkey/commit/f8d2027e8d4df790ac04974bf606408c8ea62778", "tags": ["x_refsource_MISC"], "url": "https://github.com/valkey-io/valkey/commit/f8d2027e8d4df790ac04974bf606408c8ea62778"}, {"name": "https://github.com/valkey-io/valkey/releases/tag/7.2.14", "tags": ["x_refsource_MISC"], "url": "https://github.com/valkey-io/valkey/releases/tag/7.2.14"}, {"name": "https://github.com/valkey-io/valkey/releases/tag/8.0.10", "tags": ["x_refsource_MISC"], "url": "https://github.com/valkey-io/valkey/releases/tag/8.0.10"}, {"name": "https://github.com/valkey-io/valkey/releases/tag/8.1.9", "tags": ["x_refsource_MISC"], "url": "https://github.com/valkey-io/valkey/releases/tag/8.1.9"}, {"name": "https://github.com/valkey-io/valkey/releases/tag/9.0.5", "tags": ["x_refsource_MISC"], "url": "https://github.com/valkey-io/valkey/releases/tag/9.0.5"}, {"name": "https://github.com/valkey-io/valkey/releases/tag/9.1.1", "tags": ["x_refsource_MISC"], "url": "https://github.com/valkey-io/valkey/releases/tag/9.1.1"}], "affected": [{"vendor": "valkey-io", "product": "valkey", "versions": [{"version": "< 7.2.14", "status": "affected"}, {"version": ">= 8.0.0, < 8.0.10", "status": "affected"}, {"version": ">= 8.1.0, < 8.1.9", "status": "affected"}, {"version": ">= 9.0.0, < 9.0.5", "status": "affected"}, {"version": ">= 9.1.0, < 9.1.1", "status": "affected"}]}], "providerMetadata": {"orgId": "a0819718-46f1-4df5-94e2-005712e83aaa", "shortName": "GitHub_M", "dateUpdated": "2026-08-18T14:23:52.508Z"}, "descriptions": [{"lang": "en", "value": "Valkey is a distributed key-value database. Prior to 7.2.14, 8.0.10, 8.1.9, 9.0.5, and 9.1.1, Valkey's RESTORE command accepts a malformed RDB stream payload that assigns one Pending Entry List NACK to multiple consumers during stream consumer-group deserialization, causing a use-after-free when one consumer is deleted while another still references the shared NACK and potentially allowing remote code execution. This issue is fixed in versions 7.2.14, 8.0.10, 8.1.9, 9.0.5, and 9.1.1."}], "source": {"advisory": "GHSA-mvcj-73cw-22m4", "discovery": "UNKNOWN"}}}}

{}

{"affected": [{"affectedData": [{"product": "valkey", "vendor": "valkey-io", "versions": [{"status": "affected", "version": "< 7.2.14"}, {"status": "affected", "version": ">= 8.0.0, < 8.0.10"}, {"status": "affected", "version": ">= 8.1.0, < 8.1.9"}, {"status": "affected", "version": ">= 9.0.0, < 9.0.5"}, {"status": "affected", "version": ">= 9.1.0, < 9.1.1"}]}], "source": "security-advisories@github.com"}], "cveTags": [], "descriptions": [{"lang": "en", "value": "Valkey is a distributed key-value database. Prior to 7.2.14, 8.0.10, 8.1.9, 9.0.5, and 9.1.1, Valkey's RESTORE command accepts a malformed RDB stream payload that assigns one Pending Entry List NACK to multiple consumers during stream consumer-group deserialization, causing a use-after-free when one consumer is deleted while another still references the shared NACK and potentially allowing remote code execution. This issue is fixed in versions 7.2.14, 8.0.10, 8.1.9, 9.0.5, and 9.1.1."}], "id": "CVE-2026-63639", "lastModified": "2026-08-18T15:16:56.627", "metrics": {"cvssMetricV31": [{"cvssData": {"attackComplexity": "LOW", "attackVector": "NETWORK", "availabilityImpact": "HIGH", "baseScore": 8.8, "baseSeverity": "HIGH", "confidentialityImpact": "HIGH", "integrityImpact": "HIGH", "privilegesRequired": "LOW", "scope": "UNCHANGED", "userInteraction": "NONE", "vectorString": "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H", "version": "3.1"}, "exploitabilityScore": 2.8, "impactScore": 5.9, "source": "security-advisories@github.com", "type": "Secondary"}]}, "published": "2026-08-18T15:16:56.627", "references": [{"source": "security-advisories@github.com", "url": "https://github.com/valkey-io/valkey/commit/06bc7768fe609f2054e69ccedefe7628f5675da9"}, {"source": "security-advisories@github.com", "url": "https://github.com/valkey-io/valkey/commit/509cb3c74e8cbc9c0498ebe8b6c93dcd605e7271"}, {"source": "security-advisories@github.com", "url": "https://github.com/valkey-io/valkey/commit/98465eaffe3f95524a5046318bfbc4bdb9798291"}, {"source": "security-advisories@github.com", "url": "https://github.com/valkey-io/valkey/commit/e95911d4d65be8789fa3705f44d7ed1e65378445"}, {"source": "security-advisories@github.com", "url": "https://github.com/valkey-io/valkey/commit/f8d2027e8d4df790ac04974bf606408c8ea62778"}, {"source": "security-advisories@github.com", "url": "https://github.com/valkey-io/valkey/pull/4073"}, {"source": "security-advisories@github.com", "url": "https://github.com/valkey-io/valkey/releases/tag/7.2.14"}, {"source": "security-advisories@github.com", "url": "https://github.com/valkey-io/valkey/releases/tag/8.0.10"}, {"source": "security-advisories@github.com", "url": "https://github.com/valkey-io/valkey/releases/tag/8.1.9"}, {"source": "security-advisories@github.com", "url": "https://github.com/valkey-io/valkey/releases/tag/9.0.5"}, {"source": "security-advisories@github.com", "url": "https://github.com/valkey-io/valkey/releases/tag/9.1.1"}, {"source": "security-advisories@github.com", "url": "https://github.com/valkey-io/valkey/security/advisories/GHSA-mvcj-73cw-22m4"}], "sourceIdentifier": "security-advisories@github.com", "vulnStatus": "Received", "weaknesses": [{"description": [{"lang": "en", "value": "CWE-416"}], "source": "security-advisories@github.com", "type": "Primary"}]}

{}

{"affected": [{"configurations": [{"platform": null, "status": "affected", "versions": {"scheme": "semver", "value": "[0,7.2.14)"}}, {"platform": null, "status": "affected", "versions": {"scheme": "semver", "value": "[8.0.0,8.0.10)"}}, {"platform": null, "status": "affected", "versions": {"scheme": "semver", "value": "[8.1.0,8.1.9)"}}, {"platform": null, "status": "affected", "versions": {"scheme": "semver", "value": "[9.0.0,9.0.5)"}}, {"platform": null, "status": "affected", "versions": {"scheme": "semver", "value": "[9.1.0,9.1.1)"}}], "enrichment": {"confidence": 100.0, "confidence_source": "matching", "scores": [{"score": 100.0, "source": "matching"}]}, "original": {"product": "valkey", "source": "cna", "vendor": "valkey-io"}, "product": "valkey", "vendor": "valkey-io"}], "created": "2026-08-18T15:45:06.189530+00:00", "updated": "2026-08-18T16:00:04.909759+00:00", "vendors": ["valkey-io", "valkey-io$PRODUCT$valkey"]}