CVE-2026-73812

httpd function check_header/3 rejects duplicate Content-Length (per CVE-2026-23941) but never checks for the TE+CL co-presence that RFC 9112 §6.3 identifies as a probable smuggling attempt. handle_body/3 frames by chunked and silently discards Content-Length. A CL-preferring front-end paired with chunked-preferring inets creates a classic CL.TE front-end/back-end desync. This issue affects OTP from OTP 17.0 before OTP 27.3.4.17, from OTP 28.0 before OTP 28.5.0.6, and from OTP 29.0 before OTP 29.0.6, corresponding to inets from 5.10 before 9.3.2.7, from 9.4 before 9.6.2.3, and from 9.7 before 9.7.2. Whether OTP before OTP 17.0, corresponding to inets before 5.10, is affected is unknown.

CVSS

No CVSS.

References

Link	Resource
https://cna.erlef.org/cves/CVE-2026-73812.html
https://github.com/erlang/otp/commit/591dc00dc99dc2a426167a3b5257c0c94bd45e91
https://github.com/erlang/otp/security/advisories/GHSA-7j6m-4ffg-hg46
https://osv.dev/vulnerability/EEF-CVE-2026-73812

Configurations

No configuration.

History

No history.

Information

Published : 2026-09-01 15:17

Updated : 2026-09-08 01:17

NVD link : CVE-2026-73812

Mitre link : CVE-2026-73812

CVE.ORG link : CVE-2026-73812

JSON object : View

Products Affected

No product.

CWE

CWE-444

Inconsistent Interpretation of HTTP Requests ('HTTP Request/Response Smuggling')

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A CL-preferring front-end paired with chunked-preferring inets creates a classic CL.TE front-end/back-end desync.\n\nThis issue affects OTP from OTP\u00a017.0 before OTP\u00a027.3.4.17, from OTP\u00a028.0 before OTP\u00a028.5.0.6, and from OTP\u00a029.0 before OTP\u00a029.0.6, corresponding to inets from 5.10 before 9.3.2.7, from 9.4 before 9.6.2.3, and from 9.7 before 9.7.2. Whether OTP before OTP\u00a017.0, corresponding to inets before 5.10, is affected is unknown."}], "lastModified": "2026-09-08T01:17:54.130", "sourceIdentifier": "6b3ad84c-e1a6-4bf7-a703-f496b71e49db"}