CVE-2025-55000
mediumpriority · track · 0EPSS 0.002 · 13 %ileDEEURUUSEPSS · scored 2026-10-27
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
Technical severity, 0–10. One row per scoring source.
base score 0–10 · higher = more severe · hover a vector to decode
ssvc
A stakeholder decision — act, attend, or track — from exploitation and impact.
weaknesses
The CWE weakness classes this flaw belongs to.
affected products (12)
Products and version ranges known to be affected.
- Go github.com/openbao/openbao< 0.0.0-20250806193153-183891f8d535osvUSpkg:golang/github.com/openbao/openbao
advisories (4)
Vendor and ecosystem advisories describing this.
- WID-SEC-W-2025-1855OpenBao: Mehrere SchwachstellenDeutsch2025-08-17csaf · cert_bundDE
Ein entfernter, authentisierter oder anonymer Angreifer kann mehrere Schwachstellen in OpenBao ausnutzen, um beliebigen Code auszuführen, Root-Rechte zu erlangen, Sicherheitsmaßnahmen zu umgehen und vertrauliche Informationen offenzulegen.
- GHSA-f7c3-mhj2-9pvgOpenBao TOTP Secrets Engine Code Reuse2025-08-08ghsa · osvUS
### Impact 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. ### Patches OpenBao v2.3.2 will patch this issue. In patching, codes which were not normalized (strictly N numeric digits) will now be rejected. This is a potentially breaking change. ### Workarounds TOTP code verification is a privileged action; only trusted systems should be verifying codes. Ensure that all codes are first normalized before submitting to the OpenBao endpoint. ### References This issue was disclosed to HashiCorp and is the OpenBao equivalent of the following tickets: - https://discuss.hashicorp.com/t/hcsec-2025-17-vault-totp-secrets-engine-code-reuse/76036 - https://nvd.nist.gov/vuln/detail/CVE-2025-6014
- BIT-openbao-2025-55000OpenBao TOTP Secrets Engine Enables Code Reuse2026-07-27vendor · osvUS
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.
- GO-2025-3853OpenBao TOTP Secrets Engine Code Reuse in github.com/openbao/openbao2025-08-11vendor · osvUS
OpenBao TOTP Secrets Engine Code Reuse in github.com/openbao/openbao. NOTE: The source advisory for this report contains additional versions that could not be automatically mapped to standard Go module versions. (If this is causing false-positive reports from vulnerability scanners, please suggest an edit to the report.) The additional affected modules and versions are: github.com/openbao/openbao before v2.3.2.
also known as (7)
Other names and identifiers for this entity.
- CNNVD-202508-811cnnvd
- EUVD-2025-24034enisa_euvd
- BDU:2025-11280fstec_bdu
- GHSA-f7c3-mhj2-9pvgenisa_euvd
- BIT-openbao-2025-55000osv
- GHSA-f7c3-mhj2-9pvgosv
- GO-2025-3853osv
sources
Which sources assert this record, and when.
references (11)
External citations — patches, advisories, analysis.
- https://access.redhat.com/security/cve/cve-2025-55000cnnvd
- https://discuss.hashicorp.com/t/hcsec-2025-17-vault-totp-secrets-engine-code-reuse/76036cnnvd
- https://github.com/openbao/openbao/commit/183891f8d535d5b6eb3d79fda8200cade6de99e1cnnvd
- https://github.com/openbao/openbao/releasesPatchcnnvd
- https://github.com/openbao/openbao/security/advisories/GHSA-f7c3-mhj2-9pvgcnnvd
- https://discuss.hashicorp.com/t/hcsec-2025-17-vault-totp-secrets-engine-code-reuse/76036enisa_euvd
- https://github.com/openbao/openbao/commit/183891f8d535d5b6eb3d79fda8200cade6de99e1enisa_euvd
- https://github.com/openbao/openbao/security/advisories/GHSA-f7c3-mhj2-9pvgenisa_euvd
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