CVE-2025-52893OpenBao May Leak Sensitive Information in Logs When Processing Malformed Data
- 4.5MediumCVSS base score
- 0.34%Exploitation in 30 daysEPSS · top 72% of all CVEs
- NoKnown exploitednot in CISA's KEV catalog
- NonePublic exploitsnone known yet
Description
OpenBao exists to provide a software solution to manage, store, and distribute sensitive data including secrets, certificates, and keys. OpenBao before v2.3.0 may leak sensitive information in logs when processing malformed data. This is separate from the earlier HCSEC-2025-09 / CVE-2025-4166. This issue has been fixed in OpenBao v2.3.0 and later. Like with HCSEC-2025-09, there is no known workaround except to ensure properly formatted requests from all clients.
Timeline
ID reserved
By GitHub_M
- 5 days later
· 5 days later
Published
Changes after publication (a new score, a public exploit, EPSS crossing 1, 10 or 50 %, leaving KEV) are kept since November 2026; earlier ones are not known.
Scores
| Scored by | CVSS | Score | Vector |
|---|---|---|---|
| GitHub_MCNA (assigner) | 3.1 | Medium4.5 | CVSS:3.1/AV:N/AC:L/PR:H/UI:R/S:U/C:H/I:N/A:N |
| NVDNVD · Analyzed | 3.1 | Medium4.5 | CVSS:3.1/AV:N/AC:L/PR:H/UI:R/S:U/C:H/I:N/A:N |
- EPSS (exploitation in 30 days)
- 0.34% · top 72% of all CVEs (13 Nov 2026)
- CISA SSVC
- Exploitation: none · Automatable: no · Technical impact: partial
The list uses the assigner's score when there is one, then CISA's, then NVD's: Medium 4.5.
Affected products
Affected packages
From reviewed advisories of the GitHub Advisory Database.
- Gogithub.com/openbao/openbao/sdk/v2GHSA-8f5r-8cmq-7fmq (opens in a new tab)
References
References6
- https://github.com/openbao/openbao/security/advisories/GHSA-8f5r-8cmq-7fmq (opens in a new tab)x_refsource_CONFIRM
- https://github.com/go-viper/mapstructure/pull/105 (opens in a new tab)x_refsource_MISC
- https://github.com/go-viper/mapstructure/commit/ed3f92181528ff776a0324107b8b55026e93766a (opens in a new tab)x_refsource_MISC
- https://github.com/openbao/openbao/commit/cf5e920badbf96b41253534a3fd5ff5063bf4b30 (opens in a new tab)x_refsource_MISC
- https://discuss.hashicorp.com/t/hcsec-2025-09-vault-may-expose-sensitive-information-in-error-logs-when-processing-malformed-data-with-the-kv-v2-plugin/74717 (opens in a new tab)x_refsource_MISC
- https://github.com/go-viper/mapstructure/releases/tag/v2.3.0 (opens in a new tab)x_refsource_MISC
Sources
The same CVE in the primary databases and aggregators, to check against.
- CVE.org record (opens in a new tab)
- CVE List JSON (GitHub) (opens in a new tab)
- NVD (opens in a new tab)
- FIRST EPSS (opens in a new tab)
- EUVD EUVD-2025-19112 (opens in a new tab)
- OSV.dev (opens in a new tab)
- GitHub Advisory GHSA-8f5r-8cmq-7fmq (opens in a new tab)
- CIRCL Vulnerability-Lookup (opens in a new tab)
Badge for a README or a ticket
[](https://cveledger.app/cve/CVE-2025-52893)Record last updated .