How severe is CVE-2025-54998?

CVE-2025-54998 has a CVSS 3.x base score of 5.3, rated medium severity. It is exploitable over network with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is none, integrity low, and availability none.

Is CVE-2025-54998 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (10th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2025-54998?

CVE-2025-54998 affects Openbao. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2025-54998?

Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.

Does CVE-2025-54998 have an EU (EUVD) identifier?

Yes. CVE-2025-54998 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2025-24036.

When was CVE-2025-54998 published?

CVE-2025-54998 was published on 2025-08-09 and last updated on 2026-06-17.

CVE-2025-54998

CVE-2025-54998 is a medium-severity vulnerability in Openbao with a CVSS 3.x base score of 5.3. It is not currently listed as actively exploited by CISA, and its EPSS exploit-prediction score is low. The underlying weakness is classified as CWE-307.

Key facts

Severity: Medium (CVSS 3.x base score 5.3)
EPSS exploit prediction: 0% (10th percentile)
Actively exploited: Not listed in CISA KEV
EU (EUVD) id: EUVD-2025-24036
Weakness: CWE-307
Affected product: Openbao
Published: 2025-08-09
Last modified: 2026-06-17

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/.

Frequently asked questions

What is CVE-2025-54998?: 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/.
How severe is CVE-2025-54998?: CVE-2025-54998 has a CVSS 3.x base score of 5.3, rated medium severity. It is exploitable over network with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is none, integrity low, and availability none.
Is CVE-2025-54998 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (10th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2025-54998?: CVE-2025-54998 affects Openbao. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2025-54998?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
Does CVE-2025-54998 have an EU (EUVD) identifier?: Yes. CVE-2025-54998 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2025-24036.
When was CVE-2025-54998 published?: CVE-2025-54998 was published on 2025-08-09 and last updated on 2026-06-17.

References

Affected products (1)

cpe:2.3:a:openbao:openbao:*:*:*:*:*:*:*:*

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