PT-2026-28063 · Gitlab · Gitlab Ce/Ee

Published 2026-03-25 · Updated 2026-03-25 · CVE-2026-3857

Positive Technologies · (AI Summary)

CVSS v3.1

8.1

High

AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:N

Name of the Vulnerable Software and Affected Versions GitLab CE/EE versions 17.10 through 18.8.6 GitLab CE/EE versions 18.9 through 18.9.2 GitLab CE/EE versions 18.10 through 18.10.0

Description An issue exists in GitLab CE/EE that could allow an unauthenticated user to execute arbitrary GraphQL mutations on behalf of authenticated users. This is due to insufficient Cross-Site Request Forgery (CSRF) protection.

Recommendations Update GitLab CE/EE to version 18.8.7 or later. Update GitLab CE/EE to version 18.9.3 or later. Update GitLab CE/EE to version 18.10.1 or later.

Exploit

Fix

CSRF

Weakness Enumeration

CWE-352

Related Identifiers

CVE-2026-3857

Affected Products

Gitlab Ce/Ee

References · 8

• 🔥 https://hackerone.com/reports/3584382 · Exploit
• https://nvd.nist.gov/vuln/detail/CVE-2026-3857 · Security Note
• https://about.gitlab.com/releases/2026/03/25/patch-release-gitlab-18-10-1-released · Note
• https://twitter.com/cyberbivash/status/2036886400352596474 · Twitter Post
• https://twitter.com/CVEnew/status/2036911843395199131 · Twitter Post
• https://twitter.com/the_yellow_fall/status/2036786425954189790 · Twitter Post
• https://twitter.com/TheHackerWire/status/2036900936040538308 · Twitter Post
• https://gitlab.com/gitlab-org/gitlab/-/work_items/592828 · Note