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.
History

Sat, 28 Mar 2026 04:15:00 +0000

Type Values Removed Values Added
Metrics ssvc

{'options': {'Automatable': 'no', 'Exploitation': 'none', 'Technical Impact': 'partial'}, 'version': '2.0.3'}


Thu, 26 Mar 2026 20:30:00 +0000

Type Values Removed Values Added
References

Thu, 26 Mar 2026 19:45:00 +0000

Type Values Removed Values Added
Description No description is available for this CVE. 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.
Title libsoup: libsoup: Denial of Service via use-after-free in SoupServer during TLS handshake Libsoup: libsoup: denial of service via use-after-free in soupserver during tls handshake
First Time appeared Redhat
Redhat enterprise Linux
CPEs cpe:/o:redhat:enterprise_linux:10
cpe:/o:redhat:enterprise_linux:6
cpe:/o:redhat:enterprise_linux:7
cpe:/o:redhat:enterprise_linux:8
cpe:/o:redhat:enterprise_linux:9
Vendors & Products Redhat
Redhat enterprise Linux
References

Thu, 12 Mar 2026 10:15:00 +0000

Type Values Removed Values Added
First Time appeared Libsoup
Libsoup libsoup
Vendors & Products Libsoup
Libsoup libsoup

Wed, 11 Mar 2026 12:15:00 +0000

Type Values Removed Values Added
Description No description is available for this CVE.
Title libsoup: libsoup: Denial of Service via use-after-free in SoupServer during TLS handshake
Weaknesses CWE-825
References
Metrics threat_severity

None

cvssV3_1

{'score': 6.5, 'vector': 'CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:L/A:H'}

threat_severity

Moderate


cve-icon MITRE

Status: PUBLISHED

Assigner: redhat

Published: 2026-03-26T19:31:34.270Z

Updated: 2026-03-27T19:47:47.292Z

Reserved: 2026-02-12T23:01:17.156Z

Link: CVE-2026-2436

cve-icon Vulnrichment

Updated: 2026-03-27T19:47:43.552Z

cve-icon NVD

Status : Awaiting Analysis

Published: 2026-03-26T20:16:11.720

Modified: 2026-03-30T13:26:50.827

Link: CVE-2026-2436

cve-icon Redhat

Severity : Moderate

Publid Date: 2026-02-11T00:00:00Z

Links: CVE-2026-2436 - Bugzilla