Brute Force Affecting github.com/openbao/openbao/builtin/credential/ldap package, versions <2.3.2
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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- published10 Aug 2025
- disclosed9 Aug 2025
- creditUnknown
Introduced: 9 Aug 2025
NewCVE-2025-54998 Â (opens in a new tab)How to fix?
Upgrade github.com/openbao/openbao/builtin/credential/ldap to version 2.3.2 or higher.
Overview
Affected versions of this package are vulnerable to Brute Force via the authentication process in the Userpass or LDAP systems. An attacker can circumvent intended user lockout protections by exploiting differences in user entity alias attribution between pre-flight and full login requests. This allows repeated authentication attempts without triggering lockout mechanisms.
Workaround
This vulnerability can be mitigated by applying rate-limiting quotas on the authentication endpoints.