CVE-2021-39889
4.3 MEDIUMIn all versions of GitLab EE since version 14.1, due to an insecure direct object reference vulnerability, an endpoint may reveal the pro...
Published: 2021-10-05 · Last updated: 2026-06-17
Severity and scoring
- CVSS
- 4.3 MEDIUM
- Vector
- CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:N
- CWE
- CWE-639
Affected products
| Vendor | Product |
|---|---|
| gitlab | gitlab |
Description
In all versions of GitLab EE since version 14.1, due to an insecure direct object reference vulnerability, an endpoint may reveal the protected branch name to a malicious user who makes a crafted API call with the ID of the protected branch.
Source: NVD
References
- [NVD]https://nvd.nist.gov/vuln/detail/CVE-2021-39889
- [Vendor advisory]https://gitlab.com/gitlab-org/cves/-/blob/master/2021/CVE-2021-39889.json
- [Other]https://gitlab.com/gitlab-org/gitlab/-/issues/338062
- [Other]https://hackerone.com/reports/1294017
- [Vendor advisory]https://gitlab.com/gitlab-org/cves/-/blob/master/2021/CVE-2021-39889.json
- [Other]https://gitlab.com/gitlab-org/gitlab/-/issues/338062
- [Other]https://hackerone.com/reports/1294017
Related CVEs
Same vendor
- CVE-2026-9694 — GitLab has remediated an issue in GitLab CE/EE affecting all versions from 15.9 before 18.10.8, 18.11 before 18.11.5, and 19.0 before 19.... (2.6 LOW)
- CVE-2026-9204 — GitLab has remediated an issue in GitLab CE/EE affecting all versions from 18.10 before 18.10.8, 18.11 before 18.11.5, and 19.0 before 19... (5.3 MEDIUM)
- CVE-2026-8589 — GitLab has remediated an issue in GitLab EE affecting all versions from 13.1.4 before 18.10.8, 18.11 before 18.11.5, and 19.0 before 19.0... (7.3 HIGH)
- CVE-2026-7250 — GitLab has remediated an issue in GitLab CE/EE affecting all versions from 12.10 before 18.10.8, 18.11 before 18.11.5, and 19.0 before 19... (7.5 HIGH)
- CVE-2026-6976 — GitLab has remediated an issue in GitLab CE/EE affecting all versions from 15.9 before 18.10.8, 18.11 before 18.11.5, and 19.0 before 19.... (3.7 LOW)
Same CWE
- CVE-2026-53863 — OpenClaw before 2026.4.25 contains an input validation vulnerability in tool group policy callers that accept unvalidated group IDs (7.1 HIGH)
- CVE-2026-10780 — The Static Block plugin for WordPress is vulnerable to Insecure Direct Object Reference in all versions up to, and including, 2.2 (4.3 MEDIUM)
- CVE-2026-48599 — Authorization Bypass Through User-Controlled Key vulnerability in elixir-grpc grpc allows authenticated attackers to access or modify res...
- CVE-2026-52699 — Unauthenticated Insecure Direct Object References (IDOR) in VikRentCar <= 1.4.5 versions (7.5 HIGH)
- CVE-2026-48872 — Unauthenticated Sensitive Data Exposure in EmbedPress <= 4.5.2 versions (7.5 HIGH)