DEBIAN-CVE-2026-59850

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Source
https://security-tracker.debian.org/tracker/CVE-2026-59850
Import Source
https://storage.googleapis.com/debian-osv/debian-cve-osv/DEBIAN-CVE-2026-59850.json
JSON Data
https://api.osv.dev/v1/vulns/DEBIAN-CVE-2026-59850
Upstream
  • CVE-2026-59850
Published
2026-07-21T15:16:37Z
Modified
2026-09-14T17:03:21Z
Severity
  • 7.5 (High) CVSS_V3 - CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H CVSS Calculator
Summary
[none]
Details

A flaw was found in libssh. If data packets are processed after a channel is closed, channel data callbacks can be invoked after the associated data has already been freed, leading to crashes or possible use-after-free conditions.

References

Affected packages

Debian:12 / libssh

Package

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

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0 Unknown introduced version / All previous versions are affected

Affected versions

0.*
0.10.5-2
0.10.5-3
0.10.5-3+hurd.1
0.10.6-0+deb12u1
0.10.6-0+deb12u2
0.10.6-1
0.10.6-2
0.10.6-3
0.11.1-1
0.11.1-2
0.11.2-1
0.11.3-1
0.12.0-1
0.12.0-2
0.12.0-3
0.12.1-1
0.12.2-1

Ecosystem specific 

{
    "urgency": "not yet assigned"
}

Database specific

source 
"https://storage.googleapis.com/debian-osv/debian-cve-osv/DEBIAN-CVE-2026-59850.json"

Debian:13 / libssh

Package

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

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0 Unknown introduced version / All previous versions are affected
Fixed
0.11.5-0+deb13u1

Affected versions

0.*
0.11.2-1
0.11.2-1+deb13u1
0.11.3-1

Ecosystem specific 

{
    "urgency": "not yet assigned"
}

Database specific

source 
"https://storage.googleapis.com/debian-osv/debian-cve-osv/DEBIAN-CVE-2026-59850.json"

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-2026-59850.json"