CVE-2026-73812
inets, httpd: HTTP Request Smuggling via Transfer-Encoding and Content-Length
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.
| CWE | CWE-444 |
| Vendor | erlang |
| Product | otp |
| Published | Sep 1, 2026 |
| Last Updated | Sep 1, 2026 |
Get instant alerts for erlang otp
Be the first to know when new unknown vulnerabilities affecting erlang otp are published — delivered to Slack, Telegram or Discord.