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CVE PROGRAM SOURCE RECORD8.3 High

CVE-2026-73812

inets, httpd: HTTP Request Smuggling via Transfer-Encoding and Content-Length

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Status
Published
Published
Updated
Assigning organization
EEF

Description

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.

Affected products

Version statuses are supplied by the assigning organization. Consult the original record for detailed ranges and platform conditions.

Erlang OTP

Default version status: unaffected

  • 0 to < 17.0unknown
  • 17.0 to < 27.3.4.17affected
  • 28.0 to < 28.5.0.6affected
  • 29.0 to < 29.0.6affected
pkg:software-id/erlang.org/otp

Erlang OTP

Default version status: unaffected

  • 0 to < 5.10unknown
  • 5.10 to < 9.3.2.7affected
  • 9.4 to < 9.6.2.3affected
  • 9.7 to < 9.7.2affected
pkg:otp/inets

Erlang OTP

Default version status: unaffected

  • 84adefa331c4159d432d22840663c38f155cd4c1 to < 591dc00dc99dc2a426167a3b5257c0c94bd45e91affected
pkg:github/erlang/otp

References