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Tracking
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| Source | ID | Title |
|---|---|---|
Github GHSA |
GHSA-9998-894r-fwvr | Http4s Ember Transfer-Encoding value parsing (TE.CL / TE.0 request smuggling) |
Tue, 15 Sep 2026 21:45:00 +0000
| Type | Values Removed | Values Added |
|---|---|---|
| First Time appeared |
Http4s
Http4s http4s |
|
| Vendors & Products |
Http4s
Http4s http4s |
Tue, 15 Sep 2026 20:30:00 +0000
| Type | Values Removed | Values Added |
|---|---|---|
| Metrics |
ssvc
|
Tue, 15 Sep 2026 19:30:00 +0000
| Type | Values Removed | Values Added |
|---|---|---|
| Description | Http4s is a Scala interface for HTTP services. Prior to 0.23.35 and 1.0.0-M47, Ember’s HeaderP.parse uses a case-sensitive substring test for the Transfer-Encoding value and decodes header bytes with the platform default charset. Values such as Chunked are not recognized, values such as notchunked are incorrectly accepted, and Unicode case folding can turn a Kelvin-sign byte sequence into a match when UTF-8 is used. Intermediaries that apply RFC-compliant token and charset rules can therefore disagree with Ember’s Content-Length or zero-length framing, enabling TE.CL or TE.0 request smuggling, access-control bypass, cross-user request hijacking, and cache poisoning on the server path. Response smuggling through an ember-client gateway requires a malicious or compromised upstream. This issue is fixed in versions 0.23.35 and 1.0.0-M47. | |
| Title | Http4s: Ember Transfer-Encoding value parsing (TE.CL / TE.0 request smuggling) | |
| Weaknesses | CWE-444 | |
| References |
| |
| Metrics |
cvssV3_1
|
Status: PUBLISHED
Assigner: GitHub_M
Published:
Updated: 2026-09-15T19:33:09.007Z
Reserved: 2026-08-03T16:57:50.124Z
Link: CVE-2026-69205
Updated: 2026-09-15T19:33:04.311Z
Status : Received
Published: 2026-09-15T20:17:39.653
Modified: 2026-09-15T20:17:39.653
Link: CVE-2026-69205
No data.
OpenCVE Enrichment
Updated: 2026-09-15T21:30:15Z
-
CWE-444
Inconsistent Interpretation of HTTP Requests ('HTTP Request/Response Smuggling')
Github GHSA