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Improper Restriction of Excessive Authentication Attempts

CVE-2025-54998

Severity Medium
Score 5.3/10

Summary

OpenBao exists to provide a software solution to manage, store, and distribute sensitive data including secrets, certificates, and keys. An attackers could bypass the automatic user lockout mechanisms in the OpenBao Userpass or LDAP auth systems. This was caused by different aliasing between pre-flight and full login request user entity alias attributions. To work around this issue, existing users may apply rate-limiting quotas on the authentication endpoints:, see "https://openbao.org/api-docs/system/rate-limit-quotas/". This issue affects github.com/openbao/openbao versions prior to 2.3.2.

  • LOW
  • NETWORK
  • LOW
  • UNCHANGED
  • NONE
  • NONE
  • NONE
  • NONE

CWE-307 - Improper Restriction of Excessive Authentication Attempts

The software does not implement sufficient measures to prevent multiple failed authentication attempts within in a short time frame, making it more susceptible to brute force attacks.

Advisory Timeline

  • Published