CVE-2026-5262

MEDIUM EPSS 12.8%
Published Apr 22, 20262mo ago · Modified Jun 17, 20261w ago
6.1 CVSS 3.1
Medium
Find Similar
Published Apr 22, 2026 2mo ago
Last Modified Jun 17, 2026 1w ago

Description

GitLab has remediated an issue in GitLab CE/EE affecting all versions from 16.1.0 before 18.9.6, 18.10 before 18.10.4, and 18.11 before 18.11.1 that under certain conditions could have allowed an unauthenticated user to access tokens in the Storybook development environment due to improper input validation.

CVSS Details

Base Score
6.1
Exploitability
2.8
Impact
2.7
Vector string
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N
Attack Vector Network
Attack Complexity Low
Privileges Required None
User Interaction Required
Scope Changed
Confidentiality Low
Integrity Low
Availability None

Threat Intelligence

EPSS Exploit Probability
12.8% percentile
Exploit & Patch Status
No Known Exploit
No Patch Available

Weaknesses 1

CWE-79 Cross-site Scripting Injection

Affected Products 6

VendorProductVersionRange
gitlabgitlab*≥16.1.0  –  <18.9.6
gitlabgitlab*≥16.1.0  –  <18.9.6
gitlabgitlab*≥18.10.0  –  <18.10.4
gitlabgitlab*≥18.10.0  –  <18.10.4
gitlabgitlab18.11.0any
gitlabgitlab18.11.0any

References 3

  • about.gitlab.com https://about.gitlab.com/releases/2026/04/22/patch-release-gitlab-18-11-1-released/
    Release NotesVendor Advisory
  • gitlab.com https://gitlab.com/gitlab-org/gitlab/-/work_items/595332
    Broken Link
  • hackerone.com https://hackerone.com/reports/3574642
    Permissions Required

Remediation

No remediation data recorded yet

Check vendor advisories and the NVD entry for patch availability.