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CVE-2021-39935

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...

Basic Information

CVE State
PUBLISHED
Reserved Date
August 23, 2021
Published Date
December 13, 2021
Last Updated
February 03, 2026
Vendor
GitLab
Product
GitLab
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
Tags
cisa

CVSS Scores

CVSS v3.1

6.8 - MEDIUM

Vector: CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:C/C:H/I:N/A:N

SSVC Information

Exploitation
active
Technical Impact
partial

Exploit Status

Exploited in the Wild
Yes (2026-06-01 10:50:18 UTC) Source

References

https://gitlab.com/gitlab-org/gitlab/-/issues/346187 https://hackerone.com/reports/1236965 https://gitlab.com/gitlab-org/cves/-/blob/master/2021/CVE-2021-39935.json

Known Exploited Vulnerability Information

Source Added Date
CVE 2026-06-01 10:50:18 UTC

Timeline

  • CVE ID Reserved

  • CVE Published to Public

  • Added to KEVIntel