CVE-2022-51026CWE-290

CVE-2022-51026

Critical · published October 22, 2026

CVSS v3.1
9.8
EPSS
1%
Percentile
48.7
In the wild
Unconfirmed
What it is

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.

The record
Technical detail
CVSS v3.1
9.8 · CRITICAL
Vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
CVSS v4.0
9.3 · 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
EPSS
0.00613 · 48.7th percentile
Weakness
CWE-290 · Authentication Bypass by Spoofing
Published
2026-10-22T23:17Z
References (7)
https://github.com/bytebase/bytebase/pull/834 · [email protected]https://github.com/bytebase/bytebase/releases/tag/1.0.1 · [email protected]https://github.com/bytebase/bytebase/security/advisories/GHSA-5r3p-6rj5-7937 · [email protected]https://www.vulncheck.com/advisories/bytebase-0.12.0-before-1.0.1-authentication-bypass-via-gitlab-self-hosted-login · [email protected]https://github.com/bytebase/bytebase · [email protected]https://github.com/bytebase/bytebase/blob/1.0.0/server/auth.go#L79-L93 · [email protected]https://github.com/bytebase/bytebase/commit/d69e682243b25b51dd52912a26e2f259b5f3db2d · [email protected]
EPSS history
Timeline
  • 24 OCT 03:31Z
    EPSS moved — → 1%
    epss
  • 22 OCT 19:13Z
    Bytebase 0.12.0 before 1.0.1 Authentication Bypass via GitLab Self-Hosted Login
    cvelistv5
  • 22 OCT 19:13Z
    Bytebase 0.12.0 before 1.0.1 Authentication Bypass via GitLab Self-Hosted Login
    cvelistv5