# CVE-2026-92883: GitLab Community Edition and Enterprise Edition cross-site scripting in syntax highlighting

Source: https://junglewise.ai/threats/cve-2026-92883-gitlab-has-remediated-an-issue-in-gitlab-ce-ee-affecting-all  
Publisher: Junglewise Threat Intelligence, https://junglewise.ai/threats  
Published: 2026-10-13. Updated: 2026-10-16  
License: CC BY 4.0 with a link back

CVE-2026-92883 · Severity: high · CVSS 8.7 · Published 2026-10-13

GitLab is a web-based platform for managing software code repositories and CI/CD pipelines. An authenticated attacker can inject malicious JavaScript code into a repository that executes in other users' browser sessions when they view the code, potentially allowing account takeover or data theft. This requires the attacker to have repository access and a victim to view the affected code.

Technologies: [GitLab Community Edition](https://junglewise.ai/threats/technologies/gitlab-ce), [GitLab Enterprise Edition](https://junglewise.ai/threats/technologies/gitlab-ee), [GitLab](https://junglewise.ai/threats/technologies/gitlab). Vendors: [GitLab](https://junglewise.ai/threats/vendors/gitlab).

## Quick answers

**Is CVE-2026-92883 exploited in the wild?** No. Junglewise Threat Intelligence has no report of CVE-2026-92883 being exploited in the wild.

**How severe is CVE-2026-92883?** High severity, with a CVSS score of 8.7, published 13 October 2026.

**Which products and versions are affected?** GitLab Community Edition 19.1 to 19.2.7, 19.3.0 to 19.3.4, 19.4.0 to 19.4.1; GitLab Enterprise Edition 19.1 to 19.2.7, 19.3.0 to 19.3.4, 19.4.0 to 19.4.1.

**Is there a fix for CVE-2026-92883?** Yes: fixed in GitLab CE/EE 19.2.8, 19.3.5, 19.4.2. Junglewise finds every place you run it, drafts the upgrade and applies it once you approve.

**How is CVE-2026-92883 attacked?** It is attacked over the network, in a web application.

**Am I affected by CVE-2026-92883?** Check whether you run GitLab Community Edition, GitLab Enterprise Edition or GitLab at an affected version. Junglewise does that check for you around the clock: connect your code, cloud and domains, and it matches new vulnerabilities like this one against what you actually run and tells you when one reaches you.

## How to fix

- Fixed in GitLab CE/EE 19.2.8, 19.3.5, 19.4.2

## Technical details

A cross-site scripting vulnerability exists in GitLab's syntax highlighting output due to improper sanitization of HTML attributes. An authenticated user can craft a malicious repository that, when syntax-highlighted and viewed by other users, executes arbitrary JavaScript in their browser context. The attack requires user interaction (viewing the repository) and prior authentication by the attacker.

## Affected products

- GitLab Community Edition 19.1 to 19.2.7, 19.3.0 to 19.3.4, 19.4.0 to 19.4.1
- GitLab Enterprise Edition 19.1 to 19.2.7, 19.3.0 to 19.3.4, 19.4.0 to 19.4.1

## Timeline

- 2026-10-13: disclosed
- 2026-10-12: patched: Patch releases 19.4.2, 19.3.5, 19.2.8 published

## References

- [https://docs.gitlab.com/releases/patches/patch-release-gitlab-19-4-2-released/](https://docs.gitlab.com/releases/patches/patch-release-gitlab-19-4-2-released/)
- [https://gitlab.com/gitlab-org/gitlab/-/work_items/629523](https://gitlab.com/gitlab-org/gitlab/-/work_items/629523)

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