Time-of-check Time-of-use (TOCTOU) Race Condition Affecting mcdope/pam_usb package, versions [,0.9.2)
Threat Intelligence
The probability is the direct output of the EPSS model, and conveys an overall sense of the threat of exploitation in the wild. The percentile measures the EPSS probability relative to all known EPSS scores. Note: This data is updated daily, relying on the latest available EPSS model version. Check out the EPSS documentation for more details.
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Test your applications- Snyk IDSNYK-UNMANAGED-MCDOPEPAMUSB-17660693
- published27 Jun 2026
- disclosed18 Jun 2026
- creditUnknown
Introduced: 18 Jun 2026
NewCVE-2026-48983 (opens in a new tab)How to fix?
Upgrade mcdope/pam_usb to version 0.9.2 or higher.
Overview
Affected versions of this package are vulnerable to Time-of-check Time-of-use (TOCTOU) Race Condition via a race condition in the pad directory creation process. An attacker can gain unauthorized access to sensitive one-time pad files by substituting a symlink to a directory under their control between the existence check and directory creation.