{"schema_version":"1.9.0","id":"BIT-openbao-2026-33757","published":"2026-07-27T05:49:03.835Z","modified":"2026-09-08T08:45:15.566976112Z","aliases":["CVE-2026-33757","GHSA-7q7g-x6vg-xpc3","GO-2026-4860"],"summary":"OpenBao lacks user confirmation for OIDC direct callback mode","details":"OpenBao is an open source identity-based secrets management system. Prior to version 2.5.2, OpenBao does not prompt for user confirmation when logging in via JWT/OIDC and a role with `callback_mode` set to `direct`. This allows an attacker to start an authentication request and perform \"remote phishing\" by having the victim visit the URL and automatically log-in to the session of the attacker. Despite being based on the authorization code flow, the  `direct` mode calls back directly to the API and allows an attacker to poll for an OpenBao token until it is issued. Version 2.5.2 includes an additional confirmation screen for `direct` type logins that requires manual user interaction in order to finish the authentication. This issue can be worked around either by removing any roles with `callback_mode=direct` or enforcing confirmation for every session on the token issuer side for the Client ID used by OpenBao.","affected":[{"package":{"name":"openbao","ecosystem":"Bitnami","purl":"pkg:bitnami/openbao"},"ranges":[{"type":"SEMVER","events":[{"introduced":"0"},{"fixed":"2.5.2"}]}],"database_specific":{"source":"https://github.com/bitnami/vulndb/tree/main/data/openbao/BIT-openbao-2026-33757.json"},"severity":[{"type":"CVSS_V3","score":"CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:L"}]}],"references":[{"type":"WEB","url":"https://access.redhat.com/security/cve/CVE-2026-33757"},{"type":"WEB","url":"https://bugzilla.redhat.com/show_bug.cgi?id=2452269"},{"type":"ARTICLE","url":"https://datatracker.ietf.org/doc/html/rfc8628#section-5.4"},{"type":"FIX","url":"https://github.com/openbao/openbao/commit/e32103951925723e9787e33886ab6b6ec20f4964"},{"type":"ADVISORY","url":"https://github.com/openbao/openbao/security/advisories/GHSA-7q7g-x6vg-xpc3"},{"type":"WEB","url":"https://nvd.nist.gov/vuln/detail/CVE-2026-33757"},{"type":"WEB","url":"https://security.access.redhat.com/data/csaf/v2/vex/2026/cve-2026-33757.json"}],"database_specific":{"cpes":["cpe:2.3:a:openbao:openbao:*:*:*:*:*:*:*:*"],"severity":"High"}}