Unrated severityNVD Advisory· Published Mar 17, 2026· Updated Mar 19, 2026
Libsoup: libsoup: header and http request injection via crlf injection
CVE-2026-3633
Description
A flaw was found in libsoup. A remote attacker, by controlling the method parameter of the soup_message_new() function, could inject arbitrary headers and additional request data. This vulnerability, known as CRLF (Carriage Return Line Feed) injection, occurs because the method value is not properly escaped during request line construction, potentially leading to HTTP request injection.
Affected products
6- Red Hat/Red Hat Enterprise Linux 10v5cpe:/o:redhat:enterprise_linux:10
- Red Hat/Red Hat Enterprise Linux 6v5cpe:/o:redhat:enterprise_linux:6
- Red Hat/Red Hat Enterprise Linux 7v5cpe:/o:redhat:enterprise_linux:7
- Red Hat/Red Hat Enterprise Linux 8v5cpe:/o:redhat:enterprise_linux:8
- Red Hat/Red Hat Enterprise Linux 9v5cpe:/o:redhat:enterprise_linux:9
Patches
0No patches discovered yet.
Vulnerability mechanics
AI mechanics synthesis has not run for this CVE yet.
References
3- access.redhat.com/security/cve/CVE-2026-3633mitrevdb-entryx_refsource_REDHAT
- bugzilla.redhat.com/show_bug.cgimitreissue-trackingx_refsource_REDHAT
- gitlab.gnome.org/GNOME/libsoup/-/issues/484mitre
News mentions
0No linked articles in our index yet.