# CVE-2026-3093: Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting') in GitLab

> CVE-2026-3093: Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting') in GitLab. CVSS 4.7 (CVSS 3.1).

Canonical: https://rewindex.com/cve/CVE-2026-3093
Last updated: 2026-08-03T14:04:02Z

- Published: 2026-07-29 19:02 UTC · Updated: 2026-08-03 14:04 UTC · Assigner: GitLab
- CVSS: 4.7 (CVSS 3.1) · Severity: Medium · Vector: CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:C/C:L/I:L/A:N
- EPSS: 0.29%, 21th percentile (scored 2026-10-25)
- CISA KEV: no
- CWE: CWE-79

## Description

GitLab has remediated an issue in GitLab CE/EE affecting all versions from 14.0 before 19.0.5, 19.1 before 19.1.3, and 19.2 before 19.2.1 that under certain conditions could have allowed an attacker to execute arbitrary JavaScript in another user's browser via a crafted URL, due to improper sanitization of user-controlled 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-2026-3093)
- [NVD entry](https://nvd.nist.gov/vuln/detail/CVE-2026-3093)
- [https://docs.gitlab.com/releases/patches/patch-release-gitlab-19-2-1-released/](https://docs.gitlab.com/releases/patches/patch-release-gitlab-19-2-1-released/)
- [https://gitlab.com/gitlab-org/gitlab/-/work\_items/591274](https://gitlab.com/gitlab-org/gitlab/-/work_items/591274)
- [https://hackerone.com/reports/3539833](https://hackerone.com/reports/3539833)

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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-2026-3093 · Markdown: https://rewindex.com/cve/CVE-2026-3093.md · JSON: https://rewindex.com/api/v1/cves/CVE-2026-3093 · Data licensed CC BY 4.0 (https://creativecommons.org/licenses/by/4.0/) · Generated 2026-10-26T02:50:57.163Z