5.7

CVE-2025-55003: openbao

CVSS: 5.7v3.1MediumAnalyzed
AliasesGHSA-rxp7-9q75-vj3pBIT-openbao-2025-55003GO-2025-3856
Published 09-08-2025Last modified 11-08-2025
Open JSON

Vulnerability summary

CVE-2025-55003 is a medium (CVSS 5.7) vulnerability in openbao. EPSS estimates a 0.25% chance of exploitation in the next 30 days, higher than 15.8% of scored vulnerabilities.

Overall risk
23/100
0100
Low · default modelHow is this calculated?
CVSS score
5.7/10
010
Medium · v3.1 (CVE.org)
EPSS score
0.25%
0%100%
Low · +0.05 pp in 30 days
KEVNot listedIn no KEV catalog
RansomwareNone recordedNo known use recorded
Public exploits0No public exploits recorded

Advisory lineage

Upstream 0 · Downstream 3 · Related 3
OPENSUSE-SU-2025:15434-1OPENSUSE-SU-2025:15460-1SUSE-SU-2025:02912-1

Timeline

  1. 09-08-2025
    PublishedVulnerability first disclosed.
  2. 11-08-2025
    Last 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 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 whitespace; this whitespace could bypass internal rate limiting of the MFA method and allow reuse of existing MFA codes. This issue was fixed in version 2.3.2. To work around this, use of rate-limiting quotas can limit an attacker's ability to exploit this: https://openbao.org/api-docs/system/rate-limit-quotas/.

CVSS metrics

3 scores · 3 sources · 1 version

EPSS trend

Probability

0.25%

Chance of exploitation in the next 30 days

Percentile

16%

Versus all other CVEs

30-day change

+0.05 pp

From 0.20% on 21-09-2026

21-09-202621-10-2026
EPSS score
0.25%

Known exploited

Compare KEV catalogs

Not in any of the 3 tracked catalogs.

Public exploits

0 found

No public exploits indexed.

Weaknesses

CWE · root cause

Affected systems

Github.com/openbao1 product
  • openbao≥ 0.1.0, < 2.3.2 | < 0.0.0-20250807113757-8340a6918f6c | ≥ 0.1.0, < 0.0.0-20250807113757-8340a6918f6c
Openbao1 product

2 vendors · 2 products

References

6 links