CVE-2026-0967 (GCVE-0-2026-0967)

Vulnerability from cvelistv5 – Published: 2026-03-26 20:06 – Updated: 2026-04-02 17:33
VLAI?
Title
Libssh: libssh: denial of service via inefficient regular expression processing
Summary
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.
Severity ?
2.2 (Low)
CVSS:3.0/AV:L/AC:H/PR:L/UI:R/S:U/C:N/I:N/A:L
CWE
  • CWE-1333 - Inefficient Regular Expression Complexity
Assigner
References
Impacted products
Vendor Product Version
Red Hat Red Hat Enterprise Linux 10     cpe:/o:redhat:enterprise_linux:10
 Create a notification for this product.
Date Public ?
2026-02-10 18:47
Credits
Red Hat would like to thank Jakub Jelen (libssh) and Kang Yang for reporting this issue.
Show details on NVD website
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  • Confirmed: The vulnerability has been validated from an analyst's perspective.
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