6.5

CVE-2025-55000: openbao Improper Neutralization of Whitespace

CVSS: 6.5v3.1MediumAnalyzed
AliasesGHSA-f7c3-mhj2-9pvgBIT-openbao-2025-55000GO-2025-3853
Published 09-08-2025Last modified 11-08-2025
Open JSON

Vulnerability summary

CVE-2025-55000 is a medium (CVSS 6.5) Improper Neutralization of Whitespace vulnerability in openbao. EPSS estimates a 0.22% chance of exploitation in the next 30 days, higher than 12.1% of scored vulnerabilities.

Overall risk
26/100
0100
Medium · default modelHow is this calculated?
CVSS score
6.5/10
010
Medium · v3.1 (CVE.org)
EPSS score
0.22%
0%100%
Low · +0.01 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 0.1.0 through 2.3.1, OpenBao's TOTP secrets engine could accept valid codes multiple times rather than strictly-once. This was caused by unexpected normalization in the underlying TOTP library. To work around, ensure that all codes are first normalized before submitting to the OpenBao endpoint. TOTP code verification is a privileged action; only trusted systems should be verifying codes.

CVSS metrics

3 scores · 3 sources · 1 version

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 21-09-2026

21-09-202621-10-2026
EPSS score
0.22%

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 | < 0.0.0-20250806193153-183891f8d535 | ≥ 0.1.0, < 0.0.0-20250806193153-183891f8d535
Openbao1 product
  • openbao≥ 0.1.0, < 2.3.2 | < 2.3.2

2 vendors · 2 products

References

6 links