CVE Tools
Sign in

CVE-2025-55000

OpenBao TOTP Secrets Engine Enables Code Reuse

Published: Aug 9, 2025Updated: Nov 13, 2025 Sources: CVE List NVD GHSA BDUCWE-156
NVD MITRE
6.5CVSSMEDIUM
EPSS Score
0.2%
Top 90.7%
CISA KEV
Not in KEV
Exploits
No Known Exploits
Remediation
Patch Available

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 Vector Breakdown

AV:NAC:LPR:LUI:NS:UC:HI:NA:N
Exploitability
AV:NAttack Vector
Network
AC:LAttack Complexity
Low
PR:LPrivileges Required
Low
UI:NUser Interaction
None
Scope
S:UScope
Unchanged
Impact
C:HConfidentiality
High
I:NIntegrity
None
A:NAvailability
None
Open in CVSS calculator →

Weaknesses

CWE-156

Affected Products

openbaoopenbao
On-prem
Security Products / identity-access-mgmt
github.com/openbao/openbaoGoOSS Libraries
РЕД ОСООО «Ред Софт»
On-premOS
Operating Systems / linux-distro
OpenBaoСообщество свободного программного обеспечения
On-prem
Operating Systems / linux-distro
openbaooss-projectSecurity Products
gopackage-ecosystemOSS Libraries
ооо «ред софт»commercialRUOperating Systemsaka red soft
сообщество свободного программного обеспеченияoss-projectOperating Systemsaka сообщество свободного программного обеспечения, fsf

Exploitability

Official Patch Available

References

https://github.com/openbao/openbao/security/advisories/GHSA-f7c3-mhj2-9pvg
github.com
https://github.com/openbao/openbao/commit/183891f8d535d5b6eb3d79fda8200cade6de99e1
github.com
https://discuss.hashicorp.com/t/hcsec-2025-17-vault-totp-secrets-engine-code-reuse/76036
discuss.hashicorp.com
and 5 more references View all →

Timeline

Published
Aug 9, 2025
Last Updated
Nov 13, 2025

Unlock Complete Vulnerability Intelligence

Get the full picture for CVE-2025-55000 and every CVE in our database. Create a free account — no credit card required.

Create Free Account
Plain-language analysis
Impact assessment and exploitation scenario in plain English
Attack graph visualization
Interactive attack path and kill chain mapping
Exploit details & PoC links
ExploitDB, Metasploit, GitHub PoCs with direct links
Nuclei scanner templates
Ready-to-use vulnerability scanner templates
Full remediation guide
Patch instructions, workarounds, and compliance impact
Interactive AI chat
Ask questions about this vulnerability in natural language
Related vulnerabilities
Semantically similar CVEs and attack patterns
REST API & MCP access
Integrate vulnerability data into your workflows