CVE-2026-59847

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Source
https://cve.org/CVERecord?id=CVE-2026-59847
Import Source
https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-59847.json
JSON Data
https://api.osv.dev/v1/vulns/CVE-2026-59847
Downstream
Related
Published
2026-07-21T13:18:18.146Z
Modified
2026-09-06T03:46:21.261724434Z
Severity
  • 5.9 (Medium) CVSS_V3 - CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:H/A:N CVSS Calculator
Summary
Libssh: libssh: integrity downgrade via openssl aes-gcm tag verification
Details

A flaw was found in libssh. Incorrect AES-GCM finalization checks in builds using the OpenSSL backend can effectively remove integrity protection, allowing an in-path attacker to modify plaintext on the wire without detection.

Database specific 
{
    "cwe_ids": [
        "CWE-253"
    ],
    "osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/59xxx/CVE-2026-59847.json",
    "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
79900e5246da9a1712d8822a53aaf5fd0abc6f40
Fixed
a09fdd00416e53b6ed436df6ff14339a4f884601
Introduced
50313883f3a077458cde4ea95bf46bfeb0771b34
Last affected
50313883f3a077458cde4ea95bf46bfeb0771b34
Database specific
Show details 
{
    "cpe": [
        "cpe:2.3:a:libssh:libssh:*:*:*:*:*:*:*:*",
        "cpe:2.3:a:libssh:libssh:0.12.0:*:*:*:*:*:*:*"
    ],
    "source": [
        "CPE_RANGE",
        "CPE_STRING"
    ],
    "extracted_events": [
        {
            "introduced": "0.9.0"
        },
        {
            "fixed": "0.11.5"
        },
        {
            "introduced": "0.12.0"
        },
        {
            "last_affected": "0.12.0"
        }
    ]
}

Affected versions

0.*
0.12.0
libssh-0.*
libssh-0.12.0

Database specific

source 
"https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-59847.json"