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CVE-2025-55000

22
FAUCET Score

CVE-2025-55000 describes a vulnerability in OpenBao versions 0.1.0 through 2.3.1, where the TOTP secrets engine could accept valid codes multiple times due to unexpected normalization in the underlying library. This medium-severity vulnerability (CVSS 6.5) has a network attack vector and low complexity, potentially leading to high confidentiality impact if an attacker can reuse valid TOTP codes. There is currently no evidence of active exploitation, public exploit code (Metasploit, Nuclei, ExploitDB), or significant community discussion surrounding this CVE.

Impacted Technologies

VendorProductVersion(s)CPE
< 2.3.2CPE matchmatch criteria
cpe:2.3:a:openbao:openbao:*:*:*:*:*:*:*:*

CVSS Data

CVSS version used by this source: 3.1

6.5MEDIUM

CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N

Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
LOW
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
HIGH
Integrity Impact
NONE
Availability Impact
NONE
Exploitability Score
2.8
Impact Score
3.6
CvssVersion
3.1

Exploit Intelligence

EPSS Score
0.21%
Probability of exploitation in next 30 days
EPSS Percentile
11.2%
Percentile rank of EPSS score among Peer Group
As of 2026-07-27
Model: v2026.06.15
This CVE's current EPSS score of 0.0021 is in the 10th percentile among its peer group of 21,958 CVEs.

Social Chatter

The average CVE in this peer group has 0.0 Twitter, 0.0 Reddit, 0.1 Bluesky, 0.0 Mastodon, and 0.1 GitHub mentions.

Media Mentions

No media coverage found for this CVE.

The average CVE in this peer group has 0.0 InfoSec Media, 0.0 Vendor Blog, and 0.0 Security Researcher mentions.

Remediation

Patch Available

Vendor Patches (3)

github_advisorypatch availablevia nvd_reference
View patch
gopatch availablevia ghsa
Product: github.com/openbao/openbaoFixed in: 2.3.2
gopatch availablevia ghsa
Product: github.com/openbao/openbaoFixed in: 0.0.0-20250806193153-183891f8d535

Vendor Advisories (1)

goGHSA-f7c3-mhj2-9pvgmedium

OpenBao TOTP Secrets Engine Code Reuse

Aug 8, 2025

References

discuss.hashicorp.com / t/hcsec-2025-17-vault-totp-secrets-engine-code-reuse/76036
Not Applicable
github.com / openbao/openbao/commit/183891f8d535d5b6eb3d79fda8200cade6de99e1
Patch
github.com / openbao/openbao/security/advisories/GHSA-f7c3-mhj2-9pvg
Vendor Advisory