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Vulnerability record/PUBLISHED/Published Oct 14, 2026 10:01:01 UTC

CVE-2026-109970

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.

Base score4.7/ 10
SeverityMediumCVSS 3.1

Exploitability / impact

CVSS metric breakdown

Vector-derived attributes
Base severityMedium
Attack vectorLocalAV
Attack complexityHighAC
Privileges requiredLowPR
User interactionNoneUI
ScopeUnchangedS
Confidentiality impactHighC
Integrity impactNoneI
Availability impactNoneA
CVSS vector stringCVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:N/A:N

CVSS communicates standardized severity and impact characteristics. It does not establish whether a system is exploitable in your specific environment.

Record context

CVE Numbering Authorityredhat
Last updatedOct 30, 2026 07:22:49 UTC
PublishedOct 14, 2026 10:01:01 UTC
ReservedOct 13, 2026 11:32:07 UTC

Credits

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