CVE-2026-3633
Libsoup: libsoup: header and http request injection via crlf injection
Vexday Risk Score
8Low
SSVC decision (CISA)
Track
No exploitation signal → monitor
CVSS 3.9EPSS 0.2%KEV nãoPoC —Nuclei —Metasploit —Patch —
Lifecycle
17 Mar 2026Published on NVD
Recommendation: Monitor — no exploitation signal at the moment.
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.
CVSS:3.1/AV:N/AC:H/PR:H/UI:R/S:U/C:L/I:L/A:L
Affected products
Red Hat · Red Hat Enterprise Linux 10Red Hat · Red Hat Enterprise Linux 6Red Hat · Red Hat Enterprise Linux 7Red Hat · Red Hat Enterprise Linux 8Red Hat · Red Hat Enterprise Linux 9Want to know if your infrastructure is exposed to this?
Talk to TrueHacking →