CVE-2026-0967

MEDIUM EPSS 12.8%
Published Mar 26, 20263mo ago · Modified Jun 17, 20261w ago
5.5 CVSS 3.1
Medium
Find Similar
Published Mar 26, 2026 3mo ago
Last Modified Jun 17, 2026 1w ago

Description

A flaw was found in libssh. A remote attacker, by controlling client configuration files or known_hosts files, could craft specific hostnames that when processed by the `match_pattern()` function can lead to inefficient regular expression backtracking. This can cause timeouts and resource exhaustion, resulting in a Denial of Service (DoS) for the client.

CVSS Details

Base Score
5.5
Exploitability
1.8
Impact
3.6
Vector string
CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H
Attack Vector Local
Attack Complexity Low
Privileges Required None
User Interaction Required
Scope Unchanged
Confidentiality None
Integrity None
Availability High

Threat Intelligence

EPSS Exploit Probability
12.8% percentile
Exploit & Patch Status
No Known Exploit
No Patch Available

Weaknesses 1

CWE-1333

Affected Products 3

VendorProductVersionRange
libsshlibssh* ≤0.11.3
redhatenterprise_linux9.0any
redhatenterprise_linux10.0any

References 5

  • access.redhat.com https://access.redhat.com/errata/RHSA-2026:18160
  • access.redhat.com https://access.redhat.com/errata/RHSA-2026:18683
  • access.redhat.com https://access.redhat.com/security/cve/CVE-2026-0967
    Third Party Advisory
  • bugzilla.redhat.com https://bugzilla.redhat.com/show_bug.cgi?id=2436981
    Third Party Advisory
  • libssh.org https://www.libssh.org/2026/02/10/libssh-0-12-0-and-0-11-4-security-releases/
    Release Notes

Remediation

No remediation data recorded yet

Check vendor advisories and the NVD entry for patch availability.