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Vulnerability · Published Oct 14, 2026 · Assigned by redhat

CVE-2026-109971Clevis: clevis: pkcs#11 token pin exposed on command line via pkcs11-tool

Medium 4.7

In plain English

A medium-severity security flaw in Red Hat Enterprise Linux 10 from Red Hat. Proof-of-concept exploit code is public. The chance it is exploited in the next 30 days is estimated at 0.2% (higher than 4% of all known vulnerabilities). Fixed versions are available - upgrade the affected package.

Severity (CVSS 3.1)4.7Medium
Exploit odds (30 days)0.2%top 95.5% of all CVEs
Exploited in the wildNo reportsCISA SSVC: poc
Attack toolingNoneno public tooling known

Official description

A flaw was found in the clevis PKCS#11 pin. The clevis-decrypt-pkcs11 script passes the PKCS#11 token PIN as a command-line argument to pkcs11-tool, making it visible to any local user through process listing or the /proc filesystem.

Affected packages & fixed versions

EcosystemPackageFixed inAdvisory
Debian:12clevisno fix listedDEBIAN-CVE-2026-109971
Debian:13clevisno fix listedDEBIAN-CVE-2026-109971
Debian:14clevis24-1DEBIAN-CVE-2026-109971
Ubuntu:22.04:LTSclevisno fix listedUBUNTU-CVE-2026-109971
Ubuntu:24.04:LTSclevisno fix listedUBUNTU-CVE-2026-109971
Ubuntu:26.04:LTSclevisno fix listedUBUNTU-CVE-2026-109971
Ubuntu:26.10clevisno fix listedUBUNTU-CVE-2026-109971

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-214 · Vector: CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:N/A:N

References