# CVE-2021-39935: GitLab Community and Enterprise Editions Server-Side Request Forgery (SSRF) Vulnerability

> CVE-2021-39935: GitLab Community and Enterprise Editions Server-Side Request Forgery (SSRF) Vulnerability. CVSS 6.8 (CVSS 3.1), in CISA KEV.

Canonical: https://rewindex.com/cve/CVE-2021-39935
Last updated: 2026-02-03T17:20:23Z

- Published: 2021-12-13 15:47 UTC · Updated: 2026-02-03 17:20 UTC · Assigner: GitLab
- CVSS: 6.8 (CVSS 3.1) · Severity: Medium · Vector: CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:C/C:H/I:N/A:N
- EPSS: 36.1%, 98th percentile (scored 2026-10-25)
- CISA KEV: yes, added 2026-02-03, federal due date 2026-02-24, ransomware use: Unknown

## Description

An issue has been discovered in GitLab CE/EE affecting all versions starting from 10.5 before 14.3.6, all versions starting from 14.4 before 14.4.4, all versions starting from 14.5 before 14.5.2. Unauthorized external users could perform Server Side Requests via the CI Lint API

## CISA required action

Apply mitigations per vendor instructions, follow applicable BOD 22-01 guidance for cloud services, or discontinue use of the product if mitigations are unavailable.

## Affected vendors and products

- GitLab: GitLab

## Tracked companies

- [GitLab](https://rewindex.com/company/gitlab.md)

## References

- [CVE record on cve.org](https://www.cve.org/CVERecord?id=CVE-2021-39935)
- [NVD entry](https://nvd.nist.gov/vuln/detail/CVE-2021-39935)
- [https://gitlab.com/gitlab-org/cves/-/blob/master/2021/CVE-2021-39935.json](https://gitlab.com/gitlab-org/cves/-/blob/master/2021/CVE-2021-39935.json)
- [https://gitlab.com/gitlab-org/gitlab/-/issues/346187](https://gitlab.com/gitlab-org/gitlab/-/issues/346187)
- [https://hackerone.com/reports/1236965](https://hackerone.com/reports/1236965)

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_Sources: CVE records from the CVE Program (cve.org). CVE® is a registered trademark of The MITRE Corporation. (https://www.cve.org/) This product uses data from the NVD API but is not endorsed or certified by the NVD. (https://nvd.nist.gov/) Known Exploited Vulnerabilities catalog from CISA. (https://www.cisa.gov/known-exploited-vulnerabilities-catalog) EPSS scores from FIRST (Exploit Prediction Scoring System). (https://www.first.org/epss/)_


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Canonical: https://rewindex.com/cve/CVE-2021-39935 · Markdown: https://rewindex.com/cve/CVE-2021-39935.md · JSON: https://rewindex.com/api/v1/cves/CVE-2021-39935 · Data licensed CC BY 4.0 (https://creativecommons.org/licenses/by/4.0/) · Generated 2026-10-26T03:12:54.113Z