cbcvebase.
CVE-2026-3633
published 2026-03-17

CVE-2026-3633: 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…

medium6.5CVSS 3.1
AVNACLPRNUINSUCLILAN
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

9 ranges
VendorProductVersion rangeFixed in
debianlibsoup2.4
debianlibsoup3
msrcazl3_libsoup_3.4.4-12_on_azure_linux_3.0
msrccbl2_libsoup_3.0.4-12_on_cbl_mariner_2.0
redhatenterprise_linux
redhatenterprise_linux
redhatenterprise_linux
redhatenterprise_linux
redhatenterprise_linux

CVSS provenance

nvdv3.16.5MEDIUMCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:N
osv6.5MEDIUM