CVE-2025-55000
OpenBao TOTP Secrets Engine Code Replay Vulnerability
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.
INFO
Published Date :
Aug. 9, 2025, 3:15 a.m.
Last Modified :
Aug. 12, 2025, 8:44 p.m.
Source :
[email protected]
Remotely Exploitable :
Yes !
Impact Score :
3.6
Exploitability Score :
2.8
References to Advisories, Solutions, and Tools
Here, you will find a curated list of external links that provide in-depth
information, practical solutions, and valuable tools related to
CVE-2025-55000.
We scan GitHub repositories to detect new proof-of-concept exploits. Following list is a collection of public exploits and proof-of-concepts, which have been published on GitHub (sorted by the most recently updated).
Results are limited to the first 15 repositories due to potential performance issues.
The following list is the news that have been mention
CVE-2025-55000 vulnerability anywhere in the article.
The following table lists the changes that have been made to the
CVE-2025-55000 vulnerability over time.
Vulnerability history details can be useful for understanding the evolution of a vulnerability, and for identifying the most recent changes that may impact the vulnerability's severity, exploitability, or other characteristics.
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Initial Analysis by [email protected]
Aug. 12, 2025
Action Type Old Value New Value Added CPE Configuration OR *cpe:2.3:a:openbao:openbao:*:*:*:*:*:*:*:* versions from (including) 0.1.0 up to (excluding) 2.3.2 Added Reference Type GitHub, Inc.: https://discuss.hashicorp.com/t/hcsec-2025-17-vault-totp-secrets-engine-code-reuse/76036 Types: Not Applicable Added Reference Type GitHub, Inc.: https://github.com/openbao/openbao/commit/183891f8d535d5b6eb3d79fda8200cade6de99e1 Types: Patch Added Reference Type GitHub, Inc.: https://github.com/openbao/openbao/security/advisories/GHSA-f7c3-mhj2-9pvg Types: Vendor Advisory -
New CVE Received by [email protected]
Aug. 09, 2025
Action Type Old Value New Value Added 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. Added CVSS V3.1 AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N Added CWE CWE-156 Added Reference https://discuss.hashicorp.com/t/hcsec-2025-17-vault-totp-secrets-engine-code-reuse/76036 Added Reference https://github.com/openbao/openbao/commit/183891f8d535d5b6eb3d79fda8200cade6de99e1 Added Reference https://github.com/openbao/openbao/security/advisories/GHSA-f7c3-mhj2-9pvg
CWE - Common Weakness Enumeration
While CVE identifies
specific instances of vulnerabilities, CWE categorizes the common flaws or
weaknesses that can lead to vulnerabilities. CVE-2025-55000 is
associated with the following CWEs:
Common Attack Pattern Enumeration and Classification (CAPEC)
Common Attack Pattern Enumeration and Classification
(CAPEC)
stores attack patterns, which are descriptions of the common attributes and
approaches employed by adversaries to exploit the CVE-2025-55000
weaknesses.