CVE-2026-109969
Clevis: clevis: no authentication on pkcs#11 af_unix sockets allows key injection under permissive umask
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.
Attack profile
How easy it is to exploit
- Attack vector
- Local
- Complexity
- High
- Privileges needed
- Low
- User interaction
- None
What an attacker can affect
- Confidentiality
- High
- Integrity
- None
- Availability
- None
Exploit likelihood
What each source reports
CVE List Score used
Clevis: clevis: no authentication on pkcs#11 af_unix sockets allows key injection under permissive umask
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.
- Record
CVE-2026-109969- CVSS 3.1
- 4.7 Medium
CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:N/A:N - Weakness
- CWE-306
- Updated
- 2026-11-05
EUVDEUVD-2026-100954
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.
- Record
EUVD-2026-100954- CVSS 3.1
- 4.7 Medium
CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:N/A:N - Updated
- 2026-11-05
GitHub AdvisoriesGHSA-w2m6-gjp4-v6hh
A flaw was found in the clevis PKCS#11 pin. The clevis-pkcs11-afunix-socket-unlock daemon creates...
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.
- Record
GHSA-w2m6-gjp4-v6hh- CVSS 3.1
- 4.7 Medium
CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:N/A:N - Weakness
- CWE-306
- Updated
- 2026-11-02
NVD
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.
- Record
CVE-2026-109969- CVSS 3.1
- 4.7 Medium
CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:N/A:N - Weakness
- CWE-306
- Updated
- 2026-11-05
OSVDEBIAN-CVE-2026-109969
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.
- Record
DEBIAN-CVE-2026-109969- CVSS 3.1
- 4.7 Medium
CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:N/A:N - Updated
- 2026-11-02
OSVUBUNTU-CVE-2026-109969
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.
- Record
UBUNTU-CVE-2026-109969- CVSS 3.1
- 4.7 Medium
CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:N/A:N - Updated
- 2026-11-02
Affected products
Affected packages
| Package | Affected | Fixed |
|---|---|---|
clevisDebian:12 |
All versions, plus listed versions 19-219-319-419-519-6 Show 4 moreShow less20-122-123-124-1 |
None known |
clevisDebian:13 |
All versions, plus listed versions 20-122-123-124-1 |
None known |
clevisDebian:14 |
before 24-1, plus listed versions 20-122-123-1 |
24-1 |
clevisUbuntu:18.04:LTS |
All versions, plus listed versions 8-18-1ubuntu0.18-1ubuntu0.2 |
None known |
clevisUbuntu:20.04:LTS |
All versions, plus listed versions 11-212-1ubuntu112-1ubuntu212-1ubuntu2.112-1ubuntu2.212-1ubuntu2.3 |
None known |
clevisUbuntu:22.04:LTS |
All versions, plus listed versions 16-218-118-1ubuntu118-1ubuntu1.1 |
None known |
clevisUbuntu:24.04:LTS |
All versions, plus listed versions 19-319-619-6build119-6build220-120-1ubuntu0.24.04.1 |
None known |
clevisUbuntu:26.10 |
All versions, plus listed versions 20-1ubuntu223-123-1build1 |
None known |
clevisUbuntu:26.04:LTS |
All versions, plus listed versions 20-120-1build120-1ubuntu120-1ubuntu2 |
None known |
History
| Recorded | Changed | Sources |
|---|---|---|
| facts | CVE List, EUVD | |
| first indexed | CVE List, EUVD, GitHub Advisories, NVD, OSV |
Dates are when Every CVE recorded each change. Upstream dates may differ.
In short
CVE-2026-109969 is a medium vulnerability (CVSS 4.7) in Red Hat Enterprise Linux 10, published October 14, 2026. No source lists public exploit code. EPSS puts the chance of exploitation in the next 30 days at 0.13%, the 2nd percentile. Fixed in clevis 24-1.