CVE-2026-2436

Name: CVE-2026-2436
Creator: NVD / NIST
Published: 2026-03-26T20:16:11.72+00:00
License: https://creativecommons.org/publicdomain/zero/1.0/

HIGHCVSS 8.2/10EPSS 0.45%

Last modified Jun 17, 2026

CVE-2026-2436 is a high-severity vulnerability rated 8.2/10 on the CVSS scale. 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. EPSS estimates a 0.45% chance of exploitation in the next 30 days.

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.

Metrics

CVSS 3.1

8.2/10

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

EPSS Probability

0.45%

35.7th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

CWE-825

Affected Software

Vendor	Product	Versions
Gnome	Libsoup	All versions
Redhat	Enterprise Linux	6.0
Redhat	Enterprise Linux	7.0
Redhat	Enterprise Linux	8.0
Redhat	Enterprise Linux	9.0
Redhat	Enterprise Linux	10.0

References

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

Timeline

Published: Mar 26, 2026
Last Modified: Jun 17, 2026
Status: Analyzed

Frequently Asked Questions

What is CVE-2026-2436?

How severe is CVE-2026-2436?

CVE-2026-2436 has a CVSS score of 8.2/10 (HIGH severity). The EPSS model estimates a 0.45% probability of exploitation in the next 30 days.

How do I fix CVE-2026-2436?

Check the vendor references and advisories linked above for patched versions and mitigation guidance. You can also run a Strix scan to test if your systems are affected.

Are you affected by CVE-2026-2436?

Run a free Strix scan to check your systems for this vulnerability.

Scan your code now

Source: NVD / NIST