# CVE-2026-8589: Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting') in GitLab

> CVE-2026-8589: Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting') in GitLab. CVSS 7.3 (CVSS 3.1).

Canonical: https://rewindex.com/cve/CVE-2026-8589
Last updated: 2026-06-17T11:04:11Z

- Published: 2026-06-11 10:20 UTC · Updated: 2026-06-17 11:04 UTC · Assigner: GitLab
- CVSS: 7.3 (CVSS 3.1) · Severity: High · Vector: CVSS:3.1/AV:N/AC:H/PR:H/UI:R/S:C/C:H/I:H/A:N
- EPSS: 0.26%, 17th percentile (scored 2026-10-25)
- CISA KEV: no
- CWE: CWE-79

## Description

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.

## Affected vendors and products

- GitLab: GitLab

## Tracked companies

- [GitLab](https://rewindex.com/company/gitlab.md)

## References

- [CVE record on cve.org](https://www.cve.org/CVERecord?id=CVE-2026-8589)
- [NVD entry](https://nvd.nist.gov/vuln/detail/CVE-2026-8589)
- [https://about.gitlab.com/releases/2026/06/10/patch-release-gitlab-19-0-2-released/](https://about.gitlab.com/releases/2026/06/10/patch-release-gitlab-19-0-2-released/)
- [https://gitlab.com/gitlab-org/gitlab/-/work\_items/600099](https://gitlab.com/gitlab-org/gitlab/-/work_items/600099)
- [https://hackerone.com/reports/3722842](https://hackerone.com/reports/3722842)

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_Sources: CVE records from the CVE Program (cve.org). CVE® is a registered trademark of The MITRE Corporation. (https://www.cve.org/) This product uses data from the NVD API but is not endorsed or certified by the NVD. (https://nvd.nist.gov/) Known Exploited Vulnerabilities catalog from CISA. (https://www.cisa.gov/known-exploited-vulnerabilities-catalog) EPSS scores from FIRST (Exploit Prediction Scoring System). (https://www.first.org/epss/)_


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Canonical: https://rewindex.com/cve/CVE-2026-8589 · Markdown: https://rewindex.com/cve/CVE-2026-8589.md · JSON: https://rewindex.com/api/v1/cves/CVE-2026-8589 · Data licensed CC BY 4.0 (https://creativecommons.org/licenses/by/4.0/) · Generated 2026-10-26T02:15:08.556Z