CVE-2026-2436 — MEDIUM (6.5)

Vulnerability 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.

CVSS Score

6.5

MEDIUM

CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:L/A:H

Attack Vector

NETWORK

Attack Complexity

HIGH

Privileges Required

NONE

User Interaction

NONE

Scope

UNCHANGED

Confidentiality

NONE

Integrity

LOW

Availability

HIGH

Affected Products

Vendor	Product	Versions
Gnome	Libsoup	-
Redhat	Enterprise Linux	6.0

Related Weaknesses (CWE)

CWE-825

References

https://access.redhat.com/security/cve/CVE-2026-2436Third Party Advisory
https://bugzilla.redhat.com/show_bug.cgi?id=2442909Issue TrackingThird Party Advisory
https://gitlab.gnome.org/GNOME/libsoup/-/issues/501ExploitIssue TrackingVendor Advisory

FAQ

What is CVE-2026-2436?

CVE-2026-2436 is a vulnerability with a CVSS score of 6.5 (MEDIUM). 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 T...

How severe is CVE-2026-2436?

CVE-2026-2436 has been rated MEDIUM with a CVSS base score of 6.5/10. Review the CVSS metrics above for detailed severity breakdown.

Is there a patch for CVE-2026-2436?

Check the references section above for vendor advisories and patch information. Affected products include: Gnome Libsoup, Redhat Enterprise Linux.