Description
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.
Affected products
gnome: libsoup; redhat: enterprise linux
References3
- gitlab.gnome.org/GNOME/libsoup/-/issues/501 ExploitIssue TrackingVendor Advisory
- access.redhat.com/security/cve/CVE-2026-2436 Third Party Advisory
- bugzilla.redhat.com/show_bug.cgi?id=2442909 Issue TrackingThird Party Advisory
Metrics
- CVSS 3.1
-
8.2
HIGH
Score source: NVD
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:H - EPSS — exploit probability
- 0% percentile: 41 · as of 12 November 2026
- CWE
- CWE-825
Could this be exploited in your environment?
A patch closes the known hole. A penetration test shows what an attacker can still reach — with proof.