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.
CVSS
No CVSS.
References
Configurations
No configuration.
History
13 Mar 2026, 19:54
| Type | Values Removed | Values Added |
|---|---|---|
| New CVE |
Information
Published : 2026-03-13 19:54
Updated : 2026-03-16 14:54
NVD link : CVE-2026-23941
Mitre link : CVE-2026-23941
CVE.ORG link : CVE-2026-23941
JSON object : View
Products Affected
No product.
CWE
CWE-444
Inconsistent Interpretation of HTTP Requests ('HTTP Request/Response Smuggling')