CVE-2026-6324 — Libsoup: libsoup: http request smuggling via unsigned to signed conversion error
A flaw was found in libsoup. A remote attacker could exploit an unsigned to signed conversion error in the `soup_body_input_stream_read_chunked()` function by sending a maliciou…
Published: 2026-05-29 · CVSS: 4.8 · CVSS 3.1
A flaw was found in libsoup. A remote attacker could exploit an unsigned to signed conversion error in the `soup_body_input_stream_read_chunked()` function by sending a malicious HTTP request. This vulnerability occurs when libsoup operates behind a non-libsoup proxy server or as a proxy in front of a non-libsoup backend server. Successful exploitation can allow an attacker to bypass security controls, poison web caches, or gain unauthorized access.
Source: CVE Program · Revision 8b16575c39f1e1810c5e863010da073d2d3285e7