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Vulnerabilities
Vulnerable Software

Vulnerability Details CVE-2026-0967

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.
Exploit prediction scoring system (EPSS) score
EPSS Score 0.001
EPSS Ranking 21.0%
CVSS Severity
CVSS v3 Score 2.2
Products affected by CVE-2026-0967
  • Libssh » Libssh » Version: N/A
    cpe:2.3:a:libssh:libssh:-
  • Libssh » Libssh » Version: 0.10.0
    cpe:2.3:a:libssh:libssh:0.10.0
  • Libssh » Libssh » Version: 0.10.1
    cpe:2.3:a:libssh:libssh:0.10.1
  • Libssh » Libssh » Version: 0.10.2
    cpe:2.3:a:libssh:libssh:0.10.2
  • Libssh » Libssh » Version: 0.10.3
    cpe:2.3:a:libssh:libssh:0.10.3
  • Libssh » Libssh » Version: 0.10.4
    cpe:2.3:a:libssh:libssh:0.10.4
  • Libssh » Libssh » Version: 0.10.5
    cpe:2.3:a:libssh:libssh:0.10.5
  • Libssh » Libssh » Version: 0.10.6
    cpe:2.3:a:libssh:libssh:0.10.6
  • Libssh » Libssh » Version: 0.11.0
    cpe:2.3:a:libssh:libssh:0.11.0
  • Libssh » Libssh » Version: 0.11.1
    cpe:2.3:a:libssh:libssh:0.11.1
  • Libssh » Libssh » Version: 0.11.2
    cpe:2.3:a:libssh:libssh:0.11.2
  • Libssh » Libssh » Version: 0.4.7
    cpe:2.3:a:libssh:libssh:0.4.7
  • Libssh » Libssh » Version: 0.4.8
    cpe:2.3:a:libssh:libssh:0.4.8
  • Libssh » Libssh » Version: 0.5.0
    cpe:2.3:a:libssh:libssh:0.5.0
  • Libssh » Libssh » Version: 0.5.1
    cpe:2.3:a:libssh:libssh:0.5.1
  • Libssh » Libssh » Version: 0.5.2
    cpe:2.3:a:libssh:libssh:0.5.2
  • Libssh » Libssh » Version: 0.5.3
    cpe:2.3:a:libssh:libssh:0.5.3
  • Libssh » Libssh » Version: 0.5.4
    cpe:2.3:a:libssh:libssh:0.5.4
  • Libssh » Libssh » Version: 0.5.5
    cpe:2.3:a:libssh:libssh:0.5.5
  • Libssh » Libssh » Version: 0.6.0
    cpe:2.3:a:libssh:libssh:0.6.0
  • Libssh » Libssh » Version: 0.6.1
    cpe:2.3:a:libssh:libssh:0.6.1
  • Libssh » Libssh » Version: 0.6.2
    cpe:2.3:a:libssh:libssh:0.6.2
  • Libssh » Libssh » Version: 0.6.3
    cpe:2.3:a:libssh:libssh:0.6.3
  • Libssh » Libssh » Version: 0.6.4
    cpe:2.3:a:libssh:libssh:0.6.4
  • Libssh » Libssh » Version: 0.6.5
    cpe:2.3:a:libssh:libssh:0.6.5
  • Libssh » Libssh » Version: 0.7.0
    cpe:2.3:a:libssh:libssh:0.7.0
  • Libssh » Libssh » Version: 0.7.1
    cpe:2.3:a:libssh:libssh:0.7.1
  • Libssh » Libssh » Version: 0.7.2
    cpe:2.3:a:libssh:libssh:0.7.2
  • Libssh » Libssh » Version: 0.7.3
    cpe:2.3:a:libssh:libssh:0.7.3
  • Libssh » Libssh » Version: 0.7.4
    cpe:2.3:a:libssh:libssh:0.7.4
  • Libssh » Libssh » Version: 0.7.5
    cpe:2.3:a:libssh:libssh:0.7.5
  • Libssh » Libssh » Version: 0.7.6
    cpe:2.3:a:libssh:libssh:0.7.6
  • Libssh » Libssh » Version: 0.7.7
    cpe:2.3:a:libssh:libssh:0.7.7
  • Libssh » Libssh » Version: 0.8.0
    cpe:2.3:a:libssh:libssh:0.8.0
  • Libssh » Libssh » Version: 0.8.1
    cpe:2.3:a:libssh:libssh:0.8.1
  • Libssh » Libssh » Version: 0.8.2
    cpe:2.3:a:libssh:libssh:0.8.2
  • Libssh » Libssh » Version: 0.8.3
    cpe:2.3:a:libssh:libssh:0.8.3
  • Libssh » Libssh » Version: 0.8.4
    cpe:2.3:a:libssh:libssh:0.8.4
  • Libssh » Libssh » Version: 0.8.5
    cpe:2.3:a:libssh:libssh:0.8.5
  • Libssh » Libssh » Version: 0.8.6
    cpe:2.3:a:libssh:libssh:0.8.6
  • Libssh » Libssh » Version: 0.8.7
    cpe:2.3:a:libssh:libssh:0.8.7
  • Libssh » Libssh » Version: 0.8.8
    cpe:2.3:a:libssh:libssh:0.8.8
  • Libssh » Libssh » Version: 0.8.9
    cpe:2.3:a:libssh:libssh:0.8.9
  • Libssh » Libssh » Version: 0.9.0
    cpe:2.3:a:libssh:libssh:0.9.0
  • Libssh » Libssh » Version: 0.9.1
    cpe:2.3:a:libssh:libssh:0.9.1
  • Libssh » Libssh » Version: 0.9.2
    cpe:2.3:a:libssh:libssh:0.9.2
  • Libssh » Libssh » Version: 0.9.3
    cpe:2.3:a:libssh:libssh:0.9.3
  • Libssh » Libssh » Version: 0.9.4
    cpe:2.3:a:libssh:libssh:0.9.4
  • Libssh » Libssh » Version: 0.9.5
    cpe:2.3:a:libssh:libssh:0.9.5
  • Libssh » Libssh » Version: 0.9.6
    cpe:2.3:a:libssh:libssh:0.9.6
  • Libssh » Libssh » Version: 0.9.7
    cpe:2.3:a:libssh:libssh:0.9.7
  • Libssh » Libssh » Version: 0.9.8
    cpe:2.3:a:libssh:libssh:0.9.8
  • Redhat » Enterprise Linux » Version: 10.0
    cpe:2.3:o:redhat:enterprise_linux:10.0
  • Redhat » Enterprise Linux » Version: 9.0
    cpe:2.3:o:redhat:enterprise_linux:9.0


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