Is CVE-2026-5262 actively exploited?

CVE-2026-5262 has no public evidence of in-the-wild exploitation as of 2026-04-23.

What is the CVSS score for CVE-2026-5262?

CVE-2026-5262 has a CVSS score of 8 (HIGH severity). Vector: CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:C/C:H/I:H/A:N.

How do I patch CVE-2026-5262?

Patch guidance is available from gitlab security advisories. CVEDatabase generates AI-assisted remediation guidance on demand for CVE-2026-5262.

Fix CVE-2026-5262 - HIGH gitlab gitlab

Q: Which products are affected by CVE-2026-5262?

6 products: gitlab gitlab, gitlab gitlab, gitlab gitlab, gitlab gitlab, gitlab gitlab, and 1 more.

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 Metrics

Vector: CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:C/C:H/I:H/A:N
Attack Vector: network
Complexity: high
Privileges: none
User Action: required
Scope: changed
Confidentiality: high
Integrity: high
Availability: none
Weaknesses: CWE-79 · Cross-site Scripting (XSS)

Metadata

Primary Vendor: GITLAB
Published: 4/22/2026
Last Modified: 4/23/2026
Source: NIST NVD
Note: Verify all details with official vendor sources before applying patches.

Affected Products

gitlab : gitlabgitlab : gitlabgitlab : gitlabgitlab : gitlabgitlab : gitlabgitlab : gitlab

Remediation Guidance

Executive Summary

View on NIST NVD