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CVE-2025-55003

OpenBao Login MFA Bypass of Rate Limiting and TOTP Token Reuse

Severity
Medium 5.7
Published
8 Aug 2025
Last changed
17 Jun 2026
Added to UpHeron
1 Nov 2026
Fixed in
2.3.2
Also known as
GHSA-rxp7-9q75-vj3p
Sources
NVD, Project advisories (GitHub)

Description

OpenBao exists to provide a software solution to manage, store, and distribute sensitive data including secrets, certificates, and keys. In versions 2.3.1 and below, OpenBao's Login Multi-Factor Authentication (MFA) system allows enforcing MFA using Time-based One Time Password (TOTP). Due to normalization applied by the underlying TOTP library, codes were accepted which could contain…

Affected software

SoftwareAffected versions
OpenBaoServers and applications · cpe:a:openbao:openbao
  • Every version before 2.3.2
OpenBaoServers and applications · github:openbao/openbao
  • Every version before 2.3.2

References

  • NVD https://nvd.nist.gov/vuln/detail/CVE-2025-55003
  • CVE.org https://www.cve.org/CVERecord?id=CVE-2025-55003
  • GitHub Advisory Database https://github.com/advisories/GHSA-rxp7-9q75-vj3p
  • github.com https://github.com/openbao/openbao/security/advisories/GHSA-rxp7-9q75-vj3p