CVE-2026-59842

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Source
https://cve.org/CVERecord?id=CVE-2026-59842
Import Source
https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-59842.json
JSON Data
https://api.osv.dev/v1/vulns/CVE-2026-59842
Downstream
BELL (1)
CGA (6)
DEBIAN (1)
MINI (1)
RHSA (2)
RLSA (1)
UBUNTU (1)
Related
Published
2026-07-21T11:08:30Z
Modified
2026-09-24T03:45:34Z
Severity
  • 3.7 (Low) CVSS_V3 - CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:L/I:N/A:N CVSS Calculator
Summary
Libssh: libssh: information disclosure via short gssapi curve25519 public key
Details

A flaw was found in libssh. During server-side GSSAPI key exchange, a client-supplied Curve25519 public key shorter than the expected length is copied without proper length validation, leading to an out-of-bounds heap read. This could allow a remote unauthenticated attacker to disclose small amounts of server memory.

Database specific 
{
    "cna_assigner": "redhat",
    "cwe_ids": [
        "CWE-125"
    ],
    "osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/59xxx/CVE-2026-59842.json"
}
References

Affected packages

Git / gitlab.com/libssh/libssh-mirror

Affected ranges

Type
GIT
Repo
https://gitlab.com/libssh/libssh-mirror
Events
Introduced
50313883f3a077458cde4ea95bf46bfeb0771b34
Last Affected
50313883f3a077458cde4ea95bf46bfeb0771b34
Database specific
Show details 
{
    "cpe": "cpe:2.3:a:libssh:libssh:0.12.0:*:*:*:*:*:*:*",
    "extracted_events": [
        {
            "introduced": "0.12.0"
        },
        {
            "last_affected": "0.12.0"
        }
    ],
    "source": "CPE_STRING"
}

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-2026-59842.json"