DEBIAN-CVE-2026-104038

Source
https://security-tracker.debian.org/tracker/CVE-2026-104038
Import Source
https://storage.googleapis.com/debian-osv/debian-cve-osv/DEBIAN-CVE-2026-104038.json
JSON Data
https://api.osv.dev/v1/vulns/DEBIAN-CVE-2026-104038
Upstream
  • CVE-2026-104038
Published
2026-10-06T01:16:34Z
Modified
2026-10-08T09:47:36Z
Severity
  • 5.9 (Medium) CVSS_V3 - CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:H CVSS Calculator
Summary
[none]
Details

A flaw was found in sssd. A remote attacker can cause a denial of service (DoS) by submitting a certificate that lacks an expected Security Identifier (SID) extension. In deployments configured with SID-based certificate mapping rules, the service fails to verify the presence of the extension before processing it, causing the process to crash during authentication or lookup operations.

References

Affected packages

Debian:12 / sssd

Package

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

Affected ranges

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

Affected versions

2.*
2.8.2-4
2.8.2-4+deb12u1
2.9.1-1
2.9.1-2
2.9.2-1
2.9.4-1
2.9.4-1.1~exp1
2.9.4-1.1
2.9.4-2
2.9.5-1
2.9.5-2
2.9.5-3
2.9.5-4
2.9.5-5
2.10.1-1
2.10.1-2
2.11.1-1
2.11.1-2
2.11.1-2.1
2.12.0-1
2.12.0-2
2.12.0-3~exp0
2.12.0-4
2.13.1-1
2.13.1-2
2.13.1-3

Ecosystem specific

{
    "urgency":  "not yet assigned"
}

Database specific

source
"https://storage.googleapis.com/debian-osv/debian-cve-osv/DEBIAN-CVE-2026-104038.json"

Debian:13 / sssd

Package

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

Affected ranges

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

Affected versions

2.*
2.10.1-2
2.11.1-1
2.11.1-2
2.11.1-2.1
2.12.0-1
2.12.0-2
2.12.0-3~exp0
2.12.0-4
2.13.1-1
2.13.1-2
2.13.1-3

Ecosystem specific

{
    "urgency":  "not yet assigned"
}

Database specific

source
"https://storage.googleapis.com/debian-osv/debian-cve-osv/DEBIAN-CVE-2026-104038.json"