CVE-2026-23941

Published: Mar 13, 2026 Last Modified: Mar 16, 2026
ExploitDB:
Other exploit source:
Google Dorks:
HIGH 7,0
Source: 6b3ad84c-e1a6-4bf7-a703-f496b71e49db
Attack Vector: network
Attack Complexity: high
Privileges Required: none
User Interaction: none
Confidentiality: N/A
Integrity: N/A
Availability: N/A

Description

AI Translation Available

Inconsistent Interpretation of HTTP Requests ('HTTP Request Smuggling') vulnerability in Erlang OTP (inets httpd module) allows HTTP Request Smuggling.

This vulnerability is associated with program files lib/inets/src/http_server/httpd_request.erl and program routines httpd_request:parse_headers/7.

The server does not reject or normalize duplicate Content-Length headers. The earliest Content-Length in the request is used for body parsing while common reverse proxies (nginx, Apache httpd, Envoy) honor the last Content-Length value. This violates RFC 9112 Section 6.3 and allows front-end/back-end desynchronization, leaving attacker-controlled bytes queued as the start of the next request.

This issue affects OTP from OTP 17.0 until OTP 28.4.1, OTP 27.3.4.9 and OTP 26.2.5.18, corresponding to inets from 5.10 until 9.6.1, 9.3.2.3 and 9.1.0.5.

EPSS (Exploit Prediction Scoring System)

Trend Analysis

EPSS (Exploit Prediction Scoring System)

Prevede la probabilità di sfruttamento basata su intelligence sulle minacce e sulle caratteristiche della vulnerabilità.

EPSS Score
0,0002
Percentile
0,0th
Updated

EPSS Score Trend (Last 5 Days)

444

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

Incomplete
Abstraction: Base Structure: Simple
Common Consequences
Security Scopes Affected:
Integrity Non-Repudiation Access Control
Potential Impacts:
Unexpected State Hide Activities Bypass Protection Mechanism
Applicable Platforms
Technologies: Web Based, Web Server
View CWE Details
https://github.com/erlang/otp/commit/a4b46336fd25aa100ac602…
https://github.com/erlang/otp/commit/a4b46336fd25aa100ac602eb9a627aaead7eda18
https://github.com/erlang/otp/commit/a761d391d8d08316cbd7d4…
https://github.com/erlang/otp/commit/a761d391d8d08316cbd7d4a86733ba932b73c45b
https://github.com/erlang/otp/commit/e775a332f623851385ab6d…
https://github.com/erlang/otp/commit/e775a332f623851385ab6ddb866d9b150612ddf6
https://github.com/erlang/otp/security/advisories/GHSA-w4jc…
https://github.com/erlang/otp/security/advisories/GHSA-w4jc-9wpv-pqh7
https://www.erlang.org/doc/system/versions.html#order-of-ve…
https://www.erlang.org/doc/system/versions.html#order-of-versions