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BIT-openbao-2025-52893 — OpenBao May Leak Sensitive Information in Logs When Processing Malformed Data

Affected: Bitnami: openbao

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.

Withdrawn: CLEANSTART-2026-DA82476 — Security fixes in fulcio 1.7.1-r0

Withdrawn by the publisher.

Affected: CleanStart: fulcio

Package fulcio version 1.7.1-r0 fixes 6 vulnerabilities: CVE-2025-11065, CVE-2026-41178, CVE-2025-52893, ghsa-hrxh-6v49-42gf, ghsa-2464-8j7c-4cjm...

cnvd-2025-18641

EUVD-2026-245877

fkie_cve-2025-52893

GHSA-8f5r-8cmq-7fmq — OpenBao Inserts Sensitive Information into Log File when processing malformed data

Affected: Go: github.com/openbao/openbao/sdk/v2

### Impact

OpenBao before v2.3.0 and HashiCorp Vault as of the current v1.19.5 may leak sensitive information in logs when processing malformed data. This is separate from the earlier HCSEC-2025-09 / CVE-2025-4166.

### Patches

This issue has been fixed in OpenBao v2.3.0 and later.

### Workarounds

Like with HCSEC-2025-09, there is no known workaround except to ensure properly formatted requests from all clients.

### Remediation

Users with the capability to search through server and audit logs for any possible exposed secrets can refer to the following snippets to aid in searching:

Audit Log

``` ... "error":"error converting input for field \"password\": expected type 'string', got unconvertible type 'map[string]interface {}', value: '<sensitive data>'" ... ```

Server Log

``` error converting input for field "password": expected type 'string', got unconvertible type 'map[string]interface {}', value: '<sensitive data>' ```

If any matches are found, rotating the affected secret is advised.

### References

See also: 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

See also: https://github.com/go-viper/mapstructure/releases/tag/v2.3.0

See also: https://github.com/go-viper/mapstructure/pull/105 -> https://github.com/go-viper/mapstructure/commit/ed3f92181528ff776a0324107b8b55026e93766a

openSUSE-SU-2025:15254-1 — openbao-2.3.1-1.1 on GA media

openbao-2.3.1-1.1 on GA media

UBUNTU-CVE-2025-52893

Affected: Ubuntu:25.10: golang-github-go-viper-mapstructure, Ubuntu:26.04:LTS: golang-github-go-viper-mapstructure