CVE-2026-0967

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Source
https://cve.org/CVERecord?id=CVE-2026-0967
Import Source
https://storage.googleapis.com/osv-test-cve-osv-conversion/osv-output/CVE-2026-0967.json
JSON Data
https://api.test.osv.dev/v1/vulns/CVE-2026-0967
Downstream
Related
Published
2026-03-26T20:06:30.707Z
Modified
2026-05-28T04:11:16.333280450Z
Severity
  • 2.2 (Low) CVSS_V3 - CVSS:3.0/AV:L/AC:H/PR:L/UI:R/S:U/C:N/I:N/A:L CVSS Calculator
Summary
Libssh: libssh: denial of service via inefficient regular expression processing
Details

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.

Database specific 
{
    "osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/0xxx/CVE-2026-0967.json",
    "cwe_ids": [
        "CWE-1333"
    ],
    "cna_assigner": "redhat"
}
References

Affected packages

Git / gitlab.com/libssh/libssh-mirror

Affected ranges

Type
GIT
Repo
https://gitlab.com/libssh/libssh-mirror
Events
Introduced
0 Unknown introduced commit / All previous commits are affected
Last affected
301d0e16dfa8a5cac1cff956b6880ca90eb82864
Database specific 
{
    "cpe": "cpe:2.3:a:libssh:libssh:*:*:*:*:*:*:*:*",
    "extracted_events": [
        {
            "introduced": "0"
        },
        {
            "last_affected": "0.11.3"
        }
    ],
    "source": "CPE_RANGE"
}

Affected versions

libssh-0.*
libssh-0.11.0
libssh-0.11.1
libssh-0.11.2
libssh-0.11.3
libssh-0.8.0
Other
release-0-3-0

Database specific

source 
"https://storage.googleapis.com/osv-test-cve-osv-conversion/osv-output/CVE-2026-0967.json"