low3.7
CVE-2026-2708
A request smuggling vulnerability exists in libsoup's HTTP/1 header parsing logic.
Impact
A request smuggling vulnerability exists in libsoup's HTTP/1 header parsing logic. The soup_message_headers_append_common() function in libsoup/soup-message-headers.c unconditionally appends each header value without validating for duplicate or conflicting Content-Length fields. This allows an attacker to send HTTP requests containing multiple Content-Length headers with differing values.
Affected products
| Vendor | Product | Affected versions |
|---|---|---|
| Gnome | Libsoup | All versions |
| Redhat | Enterprise Linux | Versions 6.0, 7.0, 8.0, 9.0, 10.0 |