CVE-2026-59849

Source
https://cve.org/CVERecord?id=CVE-2026-59849
Import Source
https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-59849.json
JSON Data
https://api.osv.dev/v1/vulns/CVE-2026-59849
Downstream
BELL (1)
CGA (6)
DEBIAN (1)
ECHO (1)
MGASA (1)
MINI (1)
openSUSE (2)
RHSA (2)
RLSA (1)
SUSE (3)
UBUNTU (1)
Related
Published
2026-07-21T14:08:15Z
Modified
2026-09-24T03:45:30Z
Severity
  • 3.1 (Low) CVSS_V3 - CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:N/I:N/A:L CVSS Calculator
Summary
Libssh: libssh: denial of service via automatic certificate authentication loop
Details

A flaw was found in libssh. Logic errors in automatic certificate-based public key authentication can cause libssh clients to loop indefinitely when configured certificates are missing or repeatedly rejected by a server, leading to denial of service.

Database specific
{
    "cna_assigner":  "redhat",
    "cwe_ids":  [
        "CWE-835"
    ],
    "osv_generated_from":  "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/59xxx/CVE-2026-59849.json"
}
References

Affected packages

Git / gitlab.com/libssh/libssh-mirror

Affected ranges

Type
GIT
Repo
https://gitlab.com/libssh/libssh-mirror
Events
Database specific
Show details
{
    "cpe":  [
        "cpe:2.3:a:libssh:libssh:*:*:*:*:*:*:*:*",
        "cpe:2.3:a:libssh:libssh:0.12.0:*:*:*:*:*:*:*"
    ],
    "extracted_events":  [
        {
            "introduced":  "0.11.0"
        },
        {
            "fixed":  "0.11.5"
        },
        {
            "introduced":  "0.12.0"
        },
        {
            "last_affected":  "0.12.0"
        }
    ],
    "source":  [
        "CPE_RANGE",
        "CPE_STRING"
    ]
}

Affected versions

0.*
0.12.0
libssh-0.*
libssh-0.11.0
libssh-0.11.1
libssh-0.11.2
libssh-0.11.3
libssh-0.11.4
libssh-0.12.0

Database specific

source
"https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-59849.json"