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CVE-2026-109357

9.2 critical SSVC exploitation: poc Awaiting Analysis
NVD · CVE.org

LibreNMS before 26.9.0 contains an LDAP filter injection in ldap-authorization and ad-authorization modes because usernames are inserted unescaped into LDAP search filters and authentication only checks user existence. When REMOTE_USER is not forwarded, unauthenticated attackers can send a wildcard username via HTTP Basic Authorization (PHP_AUTH_USER) to match all users and groups and gain admin access.

Fix

Nothing published yet: no patch, vendor advisory or mitigation reference on NVD, no vendor advisory in the News for this CVE, not in CISA's KEV, no fixed package version. BaselineWatch does not guess at one.

Change history 2

  1. StatusReceived → Awaiting AnalysisNVD modified 2026-10-15 20:33
  2. First seenCVSS 9.2NVD modified 2026-10-12 17:17

Affected (CPE criteria) 0

NVD has not attached CPE configurations yet.

References 3