🔐 CVE Alert

CVE-2026-8589

HIGH 7.3

Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting') in GitLab

CVSS Score
7.3
EPSS Score
0.0%
EPSS Percentile
0th

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.

CWE CWE-79
Vendor gitlab
Product gitlab
Ecosystems
Industries
Technology
Published Jun 11, 2026
Last Updated Jun 11, 2026
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CVSS v3 Breakdown

CVSS:3.1/AV:N/AC:H/PR:H/UI:R/S:C/C:H/I:H/A:N
Attack Vector
Network
Attack Complexity
High
Privileges Required
High
User Interaction
Required
Scope
Changed
Confidentiality
High
Integrity
High
Availability
None

Affected Versions

GitLab / GitLab
13.1.4 < 18.10.8 18.11 < 18.11.5 19.0 < 19.0.2

References

NVD ↗ CVE.org ↗ EPSS Data ↗
gitlab.com: https://gitlab.com/gitlab-org/gitlab/-/work_items/600099 hackerone.com: https://hackerone.com/reports/3722842 about.gitlab.com: https://about.gitlab.com/releases/2026/06/10/patch-release-gitlab-19-0-2-released/

Credits

Thanks [go7f0](https://hackerone.com/go7f0) for reporting this vulnerability through our HackerOne bug bounty program