CVE-2022-51026
Bytebase 0.12.0 before 1.0.1 Authentication Bypass via GitLab Self-Hosted Login
- State
- Published
- Severity
- 9.3 Critical
- Published
- Oct 22, 2026
- Updated
- Oct 29, 2026
- Reserved
- Oct 22, 2026
Description
Bytebase 0.12.0 before 1.0.1 contains an authentication bypass vulnerability that allows unauthenticated attackers to log in as any user. The flaw stems from trusting client-supplied GitLab provider configuration in the POST /api/auth/login/GITLAB_SELF_HOST endpoint. Attackers can set instanceUrl to a server they control that returns an active user with a chosen email. Bytebase then issues session tokens for that principal, letting attackers impersonate existing users including the Owner or create new members.
Scores
| CVSS | Score | Vector | Source |
|---|---|---|---|
| 4.0 | 9.3 Critical | CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N | VulnCheck |
| 3.1 | 9.8 Critical | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H | VulnCheck |
Weaknesses
- CWE-290 Authentication Bypass by Spoofing
Affected Products
| Product | Versions |
|---|---|
bytebasebytebase |
|
References
- GitHub Security Advisory (GHSA-5r3p-6rj5-7937)vendor-advisory
- https://github.com/bytebase/bytebase/commit/d69e682243b25b51dd52912a26e2f259b5f3db2dpatch
- https://github.com/bytebase/bytebase/pull/834patchissue-tracking
- https://github.com/bytebase/bytebase/blob/1.0.0/server/auth.go#L79-L93technical-description
- bytebase 1.0.1 Release Notesrelease-notes
- https://github.com/bytebase/bytebaseproduct
- VulnCheck Advisory: Bytebase 0.12.0 before 1.0.1 Authentication Bypass via GitLab Self-Hosted Loginthird-party-advisory
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