CVE-2026-73257

01/תיאור (מקור, אנגלית)

Mongoose is an embedded web server and network library. Priro to version 7.22, a remote unauthenticated attacker can send an HTTP request containing both Content-Length and Transfer-Encoding: chunked. The cl_count and te_count checks in the mg_http_parse() and http_cb() paths in src/http.c accept both headers and prioritize chunked encoding, while a Content-Length-preferring reverse proxy can use a different request boundary. This CL.TE desynchronization can inject requests that access or modify resources in another user context. This issue is fixed in version 7.22.

02/מוצרים מושפעים

cesanta: mongoose

03/קישורים5

• github.com/cesanta/mongoose/security/advisories/GHSA-5wfq-r6mr‮… ExploitVendor Advisory
• github.com/cesanta/mongoose/security/advisories/GHSA-5wfq-r6mr‮… ExploitVendor Advisory
• github.com/cesanta/mongoose/commit/a9df523f76f43a38bd53b4232b9‮… Patch
• github.com/cesanta/mongoose/pull/3611 Issue TrackingPatch
• github.com/cesanta/mongoose/releases/tag/7.22 Release Notes