CVE-2026-8589

GitLab has remediated an issue in GitLab EE affecting all versions from 13.1.4 before 18.10.8, 18.11 before 18.11.5, and 19.0 before 19.0.2 that under certain conditions could have allowed an authenticated user to add unauthorized email addresses to a targeted user's account due to improper sanitization of user-supplied input in certain group setting fields.

CVSS v3.1

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

CVSS v3.1

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

EPSS

0.26% chance of exploitation in the next 30 days, 17th percentile

Published

2026-06-11

Proof-of-concept exploits (1)

• https://hackerone.com/reports/3722842

References

• CVE Record
• NVD entry

Related

• CVE-2026-8501
• CVE-2026-8667
• CVE-2026-8481
• CVE-2026-8679
• CVE-2026-8472
• CVE-2026-8713