DEBIAN-CVE-2026-59842

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Source
https://security-tracker.debian.org/tracker/CVE-2026-59842
Import Source
https://storage.googleapis.com/debian-osv/debian-cve-osv/DEBIAN-CVE-2026-59842.json
JSON Data
https://api.osv.dev/v1/vulns/DEBIAN-CVE-2026-59842
Upstream
  • CVE-2026-59842
Published
2026-07-21T12:18:57Z
Modified
2026-09-14T17:03:44Z
Severity
  • 5.3 (Medium) CVSS_V3 - CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N CVSS Calculator
Summary
[none]
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.

References

Affected packages

Debian:14 / libssh

Package

Name
libssh
Purl
pkg:deb/debian/libssh?arch=source&distro=forky

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0 Unknown introduced version / All previous versions are affected
Fixed
0.12.1-1

Affected versions

0.*
0.11.2-1
0.11.3-1
0.12.0-1
0.12.0-2
0.12.0-3

Ecosystem specific 

{
    "urgency": "not yet assigned"
}

Database specific

source 
"https://storage.googleapis.com/debian-osv/debian-cve-osv/DEBIAN-CVE-2026-59842.json"