CVE-2022-51026

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.

CVSS v3 9.8 CRITICAL

9.8^/10

CVSS v3 : CRITICAL

Vector :

Exploitability : 3.9 / Impact : 5.9

Attack Vector NETWORK

Attack Complexity LOW

Privileges Required NONE

User Interaction NONE

Confidentiality Impact HIGH

Integrity Impact HIGH

Availability Impact HIGH

Scope UNCHANGED

References

Link	Resource
https://github.com/bytebase/bytebase
https://github.com/bytebase/bytebase/blob/1.0.0/server/auth.go#L79-L93
https://github.com/bytebase/bytebase/commit/d69e682243b25b51dd52912a26e2f259b5f3db2d
https://github.com/bytebase/bytebase/pull/834
https://github.com/bytebase/bytebase/releases/tag/1.0.1
https://github.com/bytebase/bytebase/security/advisories/GHSA-5r3p-6rj5-7937
https://www.vulncheck.com/advisories/bytebase-0.12.0-before-1.0.1-authentication-bypass-via-gitlab-self-hosted-login

Configurations

No configuration.

History

22 Oct 2026, 19:17

Type	Values Removed	Values Added
New CVE

Information

Published : 2026-10-22 19:17

Updated : 2026-10-29 04:18

NVD link : CVE-2022-51026

Mitre link : CVE-2022-51026

CVE.ORG link : CVE-2022-51026

JSON object : View

Products Affected

No product.

CWE

CWE-290

Authentication Bypass by Spoofing

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