Credential Exposure Affecting lemur package, versions [,1.9.2)
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Test your applications- Snyk IDSNYK-PYTHON-LEMUR-17661116
- published28 Jun 2026
- disclosed25 Jun 2026
- creditsour-exploit
Introduced: 25 Jun 2026
CVE-2026-55164 (opens in a new tab)Common Vulnerabilities and Exposures (CVE) are common identifiers for publicly known security vulnerabilities
Common Weakness Enumeration (CWE) is a category system for software weaknesses
How to fix?
Upgrade lemur to version 1.9.2 or higher.
Overview
lemur is a Certificate management and orchestration service
Affected versions of this package are vulnerable to Credential Exposure due to the improper handling of password updates in the update function. An attacker can obtain plaintext credentials by exfiltrating the users table, backups, read replicas, or query logs. This is only exploitable if an administrator changes a user's password via the admin-only PUT endpoint.