CVE-2022-51026

CRITICAL

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 v3.1 Score

9.8
CRITICAL
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Attack Vector
NETWORK
Complexity
LOW
Privileges
NONE
User Interaction
NONE
Scope
UNCHANGED
Confidentiality
HIGH
Integrity
HIGH
Availability
HIGH
Published: 10/22/2026Modified: 10/29/2026

Related Intelligence (1)

CRITICALVulnerability

NVD CRITICAL: CVE-2022-51026 — Bytebase 0.12.0 before 1.0.1 contains an authentication bypass vulnerability tha...

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

CVE-2022-51026
NIST NVD

References (7)

https://github.com/bytebase/bytebasehttps://github.com/bytebase/bytebase/blob/1.0.0/server/auth.go#L79-L93https://github.com/bytebase/bytebase/commit/d69e682243b25b51dd52912a26e2f259b5f3db2dhttps://github.com/bytebase/bytebase/pull/834https://github.com/bytebase/bytebase/releases/tag/1.0.1https://github.com/bytebase/bytebase/security/advisories/GHSA-5r3p-6rj5-7937https://www.vulncheck.com/advisories/bytebase-0.12.0-before-1.0.1-authentication-bypass-via-gitlab-self-hosted-login