inets, httpd: HTTP Request Smuggling via Transfer-Encoding and Content-Length (Erlang OTP)

CVE-2026-73812
HIGH 8.3

En bref

Source
NVD
EPSS
EPSS 0.52 % · centile 44 ()
État
PUBLISHED
Publiée
Mise à jour
Attribuée par
EEF
Statut NVD
Deferred

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.

Faiblesses (CWE)

  • CWE-444 — Dissimulation de requête ou de réponse HTTP

Références

Scores

VersionScoreVecteurÉvalué par
CVSS 4.0HIGH 8.3CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:N/VC:L/VI:H/VA:N/SC:N/SI:N/SA:NEEF
CVSS 4.0HIGH 8.3CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:N/VC:L/VI:H/VA:N/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:XNVD · 6b3ad84c-e1a6-4bf7-a703-f496b71e49db (Secondary)

Références européennes

Produits affectés

ProduitVersions
Erlang · OTPunknown 0 < 17.0 ; affected 17.0 < 27.3.4.17 ; affected 28.0 < 28.5.0.6 ; affected 29.0 < 29.0.6
Erlang · OTPunknown 0 < 5.10 ; affected 5.10 < 9.3.2.7 ; affected 9.4 < 9.6.2.3 ; affected 9.7 < 9.7.2
Erlang · OTPaffected 84adefa331c4159d432d22840663c38f155cd4c1 < 591dc00dc99dc2a426167a3b5257c0c94bd45e91

Sources

SourceLicence
CVE List (CVEProject cvelistV5)CVE Program Terms of Use
EPSS (FIRST.org)FIRST — attribution requested
ENISA EUVDENISA — reproduction authorised, source acknowledged
NVD (NIST) via fkie-cad/nvd-json-data-feedsPublic domain — this product uses data from the NVD API but is not endorsed or certified by the NVD