Vulnerability · Published Oct 14, 2026 · Assigned by redhat
CVE-2026-109969Clevis: clevis: no authentication on pkcs#11 af_unix sockets allows key injection under permissive umask
Medium 4.7
In plain English
A medium-severity missing authentication in Red Hat Enterprise Linux 10 from Red Hat. There are no confirmed reports of exploitation so far. The chance it is exploited in the next 30 days is estimated at 0.1% (higher than 3% of all known vulnerabilities). Fixed versions are available - upgrade the affected package.
Official description
A flaw was found in the clevis PKCS#11 pin. The clevis-pkcs11-afunix-socket-unlock daemon creates AF_UNIX sockets without explicit permission restrictions or peer credential verification. Under a permissive process umask, any local user can connect to the control socket and inject arbitrary device/key pairs, or connect to the data socket to receive LUKS passphrases.
Affected packages & fixed versions
| Ecosystem | Package | Fixed in | Advisory |
|---|---|---|---|
| Debian:12 | clevis | no fix listed | DEBIAN-CVE-2026-109969 |
| Debian:13 | clevis | no fix listed | DEBIAN-CVE-2026-109969 |
| Debian:14 | clevis | 24-1 | DEBIAN-CVE-2026-109969 |
| Ubuntu:22.04:LTS | clevis | no fix listed | UBUNTU-CVE-2026-109969 |
| Ubuntu:24.04:LTS | clevis | no fix listed | UBUNTU-CVE-2026-109969 |
| Ubuntu:26.04:LTS | clevis | no fix listed | UBUNTU-CVE-2026-109969 |
| Ubuntu:26.10 | clevis | no fix listed | UBUNTU-CVE-2026-109969 |
Affected products (as reported)
| Vendor | Product | Versions |
|---|---|---|
| Red Hat | Red Hat Enterprise Linux 10 | see references |
| Red Hat | Red Hat Enterprise Linux 7 | see references |
| Red Hat | Red Hat Enterprise Linux 8 | see references |
| Red Hat | Red Hat Enterprise Linux 9 | see references |
| Red Hat | Red Hat OpenShift Container Platform 4 | see references |
| Red Hat | Red Hat OpenShift Container Platform 4 | see references |
| Red Hat | Red Hat OpenShift Container Platform 5 | see references |
Weakness: CWE-306 · Vector: CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:N/A:N
References
- https://access.redhat.com/security/cve/CVE-2026-109969 vdb-entry, x_refsource_REDHAT
- RHBZ#2550361 issue-tracking, x_refsource_REDHAT