CVE-2025-54998: openbao
Vulnerability summary
CVE-2025-54998 is a medium (CVSS 5.3) vulnerability in openbao. EPSS estimates a 0.22% chance of exploitation in the next 30 days, higher than 11.7% of scored vulnerabilities.
Advisory lineage
Upstream 0 · Downstream 2 · Related 2Timeline
- 09-08-2025PublishedVulnerability first disclosed.
- 11-08-2025Last modifiedVulnerability information updated.
Description
OpenBao exists to provide a software solution to manage, store, and distribute sensitive data including secrets, certificates, and keys. In versions 0.1.0 through 2.3.1, 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. This is fixed in version 2.3.2. 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/.
CVSS metrics
3 scores · 3 sources · 1 version- OSV · GoEcosystem advisory · calculated5.3MediumCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N
- NVDNIST5.3MediumCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N
EPSS trend
Probability
0.22%
Chance of exploitation in the next 30 days
Percentile
12%
Versus all other CVEs
30-day change
+0.01 pp
From 0.21% on 19-09-2026
Known exploited
Compare KEV catalogsNot in any of the 3 tracked catalogs.
Public exploits
0 foundNo public exploits indexed.
Weaknesses
CWE · root causeAffected systems
Github.com/openbao1 product
- openbao≥ 0.1.0, < 2.3.2 | < 0.0.0-20250807212521-c52795c1ef74 | ≥ 0.1.0, < 0.0.0-20250807212521-c52795c1ef74
Openbao1 product
- openbao≥ 0.1.0, < 2.3.2 | < 2.3.2
2 vendors · 2 products
References
6 links- github.com/openbao/openbao/security/advisories/GHSA-j3xv-7fxp-gfhxX Refsource CONFIRMWEBAdvisoryVendor Advisory
- github.com/openbao/openbao/commit/c52795c1ef746c7f2c510f9225aa8ccbbd44f9fcX Refsource MISCWEBFIXPatch
- discuss.hashicorp.com/t/hcsec-2025-16-vault-userpass-and-ldap-user-lockout-bypass/76035X Refsource MISCWEBNot Applicable
- github.com/openbao/openbaoPACKAGE