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Vulnerability · Published Oct 14, 2026 · Assigned by redhat

CVE-2026-109970Clevis: clevis: pkcs#11 token pin written to world-readable file

Medium 4.7

In plain English

A medium-severity security flaw 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 2% of all known vulnerabilities). Fixed versions are available - upgrade the affected package.

Severity (CVSS 3.1)4.7Medium
Exploit odds (30 days)0.1%top 97.9% of all CVEs
Exploited in the wildNo reportsCISA SSVC: none
Attack toolingNoneno public tooling known

Official description

A flaw was found in the clevis PKCS#11 pin. The clevis-luks-pkcs11-askpin script writes the PKCS#11 token PIN in plaintext to a file without setting restrictive permissions. Under the default process umask, the file is world-readable. Additionally, the PIN file is not reliably cleaned up if the decryption script exits early, leaving the PIN accessible indefinitely.

Affected packages & fixed versions

EcosystemPackageFixed inAdvisory
Debian:12clevisno fix listedDEBIAN-CVE-2026-109970
Debian:13clevisno fix listedDEBIAN-CVE-2026-109970
Debian:14clevis24-1DEBIAN-CVE-2026-109970
Ubuntu:22.04:LTSclevisno fix listedUBUNTU-CVE-2026-109970
Ubuntu:24.04:LTSclevisno fix listedUBUNTU-CVE-2026-109970
Ubuntu:26.04:LTSclevisno fix listedUBUNTU-CVE-2026-109970
Ubuntu:26.10clevisno fix listedUBUNTU-CVE-2026-109970

Affected products (as reported)

VendorProductVersions
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-538 · Vector: CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:N/A:N

References