OpenBao leaks HTTPRawBody in Audit Logs

### 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.

Source published

22 Oct 2025 19:37:53 UTC

Source modified

27 Jul 2026 09:11:42 UTC

Observed here

24 Oct 2026 13:19:41 UTC

Source terms

GitHub Advisory Database · CC-BY-4.0

Original source record · Cite this exact observation · Complete original publisher JSON

This view projects the publisher's source fields for reading; the original JSON retains additional fields and CVE enrichment containers. Attribution: osv · GitHub Advisory Database · CC-BY-4.0. Source text is retained; field grouping and change labels are provided by ChangeIntel.

CVSS_V4 · CVSS:4.0/AV:N/AC:L/AT:P/PR:H/UI:P/VC:H/VI:N/VA:N/SC:N/SI:N/SA:N

Publisher rating · MODERATE