OpenBao leaks HTTPRawBody in Audit Logs

MediumCVE-2025-62513 · Published Oct 22, 2025 · updated Jul 27, 2026

### Impact OpenBao's audit log experienced a regression wherein raw HTTP bodies used by few endpoints were not correctly redacted (HMAC'd). This impacted the following subsystems: - When using the ACME functionality of PKI, this would result in short-lived ACME verification challenge codes being leaked in the audit logs. - When using the OIDC issuer functionality of the identity subsystem, auth and token response codes along with claims could be leaked in the audit logs. Third-party plugins may be affected. ### Patches OpenBao v2.4.2 will patch this issue. ### Workarounds If users do not use the above functionality, they are not impacted. ACME verification codes are not usable after verification or challenge expiry so are of limited long-term use.