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TI-2022-26714 Aliases CVE-2022-51026GHSA-ffpw-wpwq-rh9j

Authentication bypass in Bytebase GitLab self-hosted login

Priority MEDIUM 49CWE-290Published · Updated

Key facts

Attack vector
Network
Privileges required
None
User interaction
None
Attack complexity
Low
Attack requirements
None
Impact type
Security bypass
Confidentiality · integrity · availability
High · High · High
Fix status
Fixed

Attack profile from CVSS 4.0 · CNA. Fix status from CNA. Impact type from CWE-290.

Summary

Bytebase 0.12.0 before 1.0.1 contains an authentication bypass in the GitLab self-hosted login endpoint. The server trusts a client-supplied GitLab instance URL, so an unauthenticated remote attacker can log in as any user, including the Owner, or create new members. CWE-290 describes this spoofing flaw.

Written with Claude Haiku 5.5 from the sources below · 2026-10-29

Description from the CNA

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.

Why it matters now

Exploitation None reported CISA SSVC · not in CISA KEV
EPSS 0.00613 49th percentileScored 2026-11-07
Fix Fixed bytebase (bytebase): 1.0.1

SSVC decision points

CISA ADP · SSVC 2.0.3

Exploitation
None
Automatable
Yes
Technical impact
Total

The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.

Affected products

VendorProductAffected versionsFixed inStatusSource
bytebasebytebase0.12.0 to before 1.0.11.0.1Patch availableCNA
  • bytebase Vendorbytebase Affected 0.12.0 to before 1.0.1 Fixed in 1.0.1 Patch available CNA

Remediation

Upgrade Bytebase to version 1.0.1 or later, which fixes this issue in the affected range 0.12.0 before 1.0.1.

Written with Claude Haiku 5.5 from the sources below · 2026-10-29

  • Fix · CNA bytebase (bytebase) Fixed in 1.0.1

Timeline

  1. 2026-10-22 Threatist record created from CVE-2022-51026
  2. 2026-10-22 Alias added: GHSA-ffpw-wpwq-rh9j
  3. 2026-10-29 CISA SSVC decision points changed

References

Patch 2

Advisory 1

Other 3

  • TI-2026-44186 DBHub HTTP transport DNS rebinding allows unauthenticated browser-origin SQL execution CVSS 4.0CRITICAL 9.3
  • TI-2026-44228 @bytebase/dbhub's read-only mode does not prevent database writes CVSS 3.1HIGH 7.4
  • TI-2026-83204 Read-only bypass in DBHub MySQL and MariaDB connectors via comments CVSS 4.0MEDIUM 6.1
  • TI-2022-13896 bytebase - Improper Authorization CVSS 3.1MEDIUM 4.3
  • TI-2022-13895 bytebase - Improper Authorization CVSS 3.1MEDIUM 4.3
  • TI-2026-79259 Authorization bypass in Bytebase exposes other projects' task runs CVSS 4.0MEDIUM 5.3
See all 7 →

Sources

This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences