# CVE-2026-10086: Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting') in GitLab

> CVE-2026-10086: Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting') in GitLab. CVSS 8.7 (CVSS 3.1).

Canonical: https://rewindex.com/cve/CVE-2026-10086
Last updated: 2026-06-26T18:36:05Z

- Published: 2026-06-25 05:03 UTC · Updated: 2026-06-26 18:36 UTC · Assigner: GitLab
- CVSS: 8.7 (CVSS 3.1) · Severity: High · Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:H/I:H/A:N
- EPSS: 0.35%, 28th percentile (scored 2026-10-25)
- CISA KEV: no
- CWE: CWE-79

## Description

GitLab has remediated an issue in GitLab EE affecting all versions from 16.4 before 18.11.6, 19.0 before 19.0.3, and 19.1 before 19.1.1 that under certain conditions could have allowed an authenticated user with developer-role permissions to execute arbitrary client-side code in the context of another user's session, due to improper sanitization of user-supplied input.

## 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-2026-10086)
- [NVD entry](https://nvd.nist.gov/vuln/detail/CVE-2026-10086)
- [https://docs.gitlab.com/releases/patches/patch-release-gitlab-19-1-1-released/](https://docs.gitlab.com/releases/patches/patch-release-gitlab-19-1-1-released/)
- [https://gitlab.com/gitlab-org/gitlab/-/work\_items/601634](https://gitlab.com/gitlab-org/gitlab/-/work_items/601634)
- [https://hackerone.com/reports/3734800](https://hackerone.com/reports/3734800)

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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-2026-10086 · Markdown: https://rewindex.com/cve/CVE-2026-10086.md · JSON: https://rewindex.com/api/v1/cves/CVE-2026-10086 · Data licensed CC BY 4.0 (https://creativecommons.org/licenses/by/4.0/) · Generated 2026-10-26T03:10:21.990Z