Improper Authentication Affecting 389ds/389-ds-base package, versions [,3.3.1)
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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- published24 Sept 2026
- disclosed7 Sept 2026
- creditUnknown
Introduced: 7 Sep 2026
CVE-2026-18922 (opens in a new tab)How to fix?
Upgrade 389ds/389-ds-base to version 3.3.1 or higher.
Overview
Affected versions of this package are vulnerable to Improper Authentication in the authentication process. An attacker can gain unauthorized Directory Manager privileges by sending a failed SASL PLAIN bind as cn=Directory Manager with an incorrect password, followed by a successful SASL ANONYMOUS bind on the same connection, which causes the server to grant elevated authority without valid credentials.
Workaround
This vulnerability can be mitigated by restricting nsslapd-allowed-sasl-mechanisms to only the mechanisms actually required (e.g., GSSAPI, EXTERNAL, GSS-SPNEGO), excluding PLAIN.