Authorization Bypass Through User-Controlled Key Affecting lemur package, versions [,1.9.3)
Threat Intelligence
Snyk has a proof-of-concept or detailed explanation of how to exploit this vulnerability.
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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- published31 Aug 2026
- disclosed18 Aug 2026
- creditMaxime Perusse
Introduced: 18 Aug 2026
NewCVE-2026-71417 (opens in a new tab)How to fix?
Upgrade lemur to version 1.9.3 or higher.
Overview
lemur is a Certificate management and orchestration service
Affected versions of this package are vulnerable to Authorization Bypass Through User-Controlled Key through the upload and revoke. An attacker can cause unauthorized revocation of certificates at the certificate authority by uploading a duplicate certificate record with attacker-controlled fields and then revoking it, leveraging insufficient permission checks and lack of uniqueness constraints.