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  4. CVE 2026 109968 clevis clevis pkcs11 luks passphrase logged in
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Back to active CVEs
Medium · CVSS 5.5CVE-2026-109968

Clevis: clevis: pkcs#11 luks passphrase logged in plaintext to world-readable fileCVE-2026-109968

Answer in brief

CVE-2026-109968 records a Medium severity (CVSS 5.5) vulnerability in Clevis: clevis: pkcs#11 luks passphrase logged in plaintext to world-readable file. The current sources do not mark it as known exploited. The current feed maps Red Hat/clevis (generic). Check affected ranges and fixed versions before updating.

Analysis pending evidence review

HOL Guard separates source facts from reviewed analysis. See the methodology.

Published Oct 14, 2026Updated Oct 14, 2026Source checked Oct 14, 2026First seen by HOL Oct 14, 2026Material review Oct 14, 2026
Upstream Advisory

Key facts

Risk
Medium · CVSS 5.5
Exploitation
Not marked as known exploited
Affected software
1 mapped package or product
Fix availability
Not reported

Why this deserves its current priority

CVSS is 5.5. The current sources do not mark it as known exploited. Treat this as a source-backed prioritization signal, not a statement about your environment.

Analysis status

Analysis pending evidence review

Factual feed record only; HOL analysis is not approved for indexing. Read the methodology.

Affected scope and exposure questions

The current feed maps Red Hat/clevis (generic). Check affected ranges and fixed versions before updating.

Mapped affected packages and fixed versions
PackageAffected rangeFixed version
Red Hat/clevisgeneric*Not reported

Recommended response

  1. 1Check inventory. Check lockfiles and deployed manifests for Red Hat/clevis.
  2. 2Review the reported fix. Source-reported workaround: Configure the clevis-luks-pkcs11-askpass systemd service with a restrictive UMask by creating a service override using systemctl edit. Setting UMask to 0077 prevents the log file from being readable by non-root users. Additionally, remove any existing log files under /run/systemd/clevis-pkcs11-*.log after each boot, as they may already contain passphrases from previous unlocks. This workaround only covers the systemd service path. The dracut initramfs code path is not covered by this mitigation.

Evidence timeline and material changes

  1. Published upstream

    Oct 14, 2026

    Evidence: source:cvelist:source_dates:source-dates:record

  2. Source modified

    Oct 14, 2026

    Evidence: source:cvelist:source_dates:source-dates:record

  3. First seen by HOL

    Oct 14, 2026

Sources and claim methodology

  • Source referenceaccess.redhat.com
  • Source referencebugzilla.redhat.com
Upstream source description

A flaw was found in the clevis PKCS#11 pin. The clevis-pkcs11-afunix-socket-unlock daemon logs LUKS disk encryption passphrases in plaintext to a log file. The log file is created without restrictive permissions, making it world-readable under the default process umask. A local attacker can read the log file to obtain the LUKS passphrase.

Quoted source text, attributed separately from HOL analysis.

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Record context

Vulnerability class
Vulnerability
EPSS
Not reported
CWE IDs
CWE-532
Source
CVE List V5
Source checked
Oct 14, 2026
References
2 linked sources
Open source record