Security Flaw in Clevis PKCS#11 Pin Affects Red Hat Products
CVE-2026-109970

4.7MEDIUM

Key Information:

Vendor

Red Hat
Status
Red Hat Enterprise Linux 10
Red Hat Enterprise Linux 7
Red Hat Enterprise Linux 8
Red Hat Enterprise Linux 9
Vendor
CVE Published:
14 October 2026

What is CVE-2026-109970?

A vulnerability in the Clevis PKCS#11 pin allows the 'clevis-luks-pkcs11-askpin' script to unintentionally write the PKCS#11 token PIN in plaintext to a file without appropriate permission settings. Under typical umask settings, this file becomes world-readable, leading to potential unauthorized access. Moreover, if the decryption script fails to execute properly, the PIN may remain accessible in the system for an indefinite period, increasing the risk of exposure.

References

https://access.redhat.com/security/cve/CVE-2026-109970
vdb-entryx_refsource_REDHAT
https://bugzilla.redhat.com/show_bug.cgi?id=2550362
issue-trackingx_refsource_REDHAT

CVSS V3.1

Score:
4.7
Severity:
MEDIUM
Confidentiality:
High
Integrity:
None
Availability:
High
Attack Vector:
Local
Attack Complexity:
High
Privileges Required:
Low
User Interaction:
None
Scope:
Unchanged

Timeline

  • Vulnerability published

  • Vulnerability Reserved

Credit

This issue was discovered by Sergio Correia (Red Hat).
.