CVE-2026-5262

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 v3.1

6.1 MEDIUMCVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N

CVSS v3.1

8.0 HIGHCVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:C/C:H/I:H/A:N

EPSS

0.22% chance of exploitation in the next 30 days, 13th percentile

Published

2026-04-22

Proof-of-concept exploits (1)

• https://hackerone.com/reports/3574642

References

• CVE Record
• NVD entry

Related

• CVE-2026-5261
• CVE-2026-52656
• CVE-2026-5259
• CVE-2026-52680
• CVE-2026-5258
• CVE-2026-52715