CVE-2026-33757

CRITICAL9.6EPSS 0.03%

OpenBao lacks user confirmation for OIDC direct callback mode

發布日:2026/3/26修改日:2026/3/27

描述

### Impact 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. ### Patches Version 2.5.2 includes an additional confirmation screen for `direct` type logins that requires manual user interaction in order to finish the authentication. ### Workarounds 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.

受影響套件(2)

Go/github.com/openbao/openbaofrom 0, < 0.0.0-20260325142553-e32103951925
Go/github.com/openbao/openbaofrom 0, < 0.0.0-20260325142553-e32103951925

CVSS 分數

來源	版本	嚴重程度	向量
osv	CVSS 3.1	CRITICAL9.6	CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:H/I:H/A:L

描述

受影響套件(2)

CVSS 分數

參考連結(5)