A flaw was found in libsoup's SoupServer. A remote attacker could exploit a use-after-free vulnerability where the `soup_server_disconnect()` function frees connection objects prematurely, even if a TLS handshake is still pending. If the handshake completes after the connection object has been freed, a dangling pointer is accessed, leading to a server crash and a Denial of Service.
CVE-2026-2436
CVSS base score
6.5 (v3.1)
Severity
MEDIUM
Attack vector
Network
Weakness
CWE-825
Last modified
November 5, 2026
CVSS vector
CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:L/A:H
Affected products
gnome libsoup
redhat enterprise linux
References
- access.redhat.com Third Party Advisory
- bugzilla.redhat.com Issue Tracking, Third Party Advisory
- gitlab.gnome.org Exploit, Issue Tracking, Vendor Advisory