CVE-2026-10712 Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting') in GitLab

High 8.0 Published 25 Jun 2026 Updated 26 Jun 2026

An unauthenticated attacker can execute arbitrary JavaScript in a user's browser via improper path validation in GitLab.

Exploited in the wild: Not known
Login needed: Not needed
Attackable: Over the internet
Victim action needed: A user has to click or open something
Fix: Available

What is CVE-2026-10712?

CVE-2026-10712 is a high-severity cross-site scripting vulnerability in Gitlab Gitlab, published on 25 Jun 2026. An attacker can exploit it over the internet without logging in, and only if a user opens a file or follows a link.

Official description

GitLab has remediated an issue in GitLab CE/EE affecting all versions from 18.10 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 unauthenticated user to execute arbitrary JavaScript in a user's browser session due to improper path validation under certain conditions.

Weakness: CWE-79

Which versions are affected by CVE-2026-10712?

1 open source package ship an affected version, including gitlab. It affects 1 product.

Package	Affected	Fixed in
`gitlab` Bitnami	From `18.10.0`	`18.11.6, 19.0.3, 19.1.1`

Products include Gitlab Gitlab.

How do I fix CVE-2026-10712?

Upgrade gitlab to a fixed version for your release line: 18.11.6, 19.0.3 or 19.1.1.

Escape output for the context it lands in and set a strict Content Security Policy. Upgrading the affected component is the real fix. More about Cross-site scripting.

Is CVE-2026-10712 being exploited?

There is no known exploitation of CVE-2026-10712 in the wild and no public exploit code.

All Gitlab Gitlab vulnerabilities

Sources

Also known as BIT-gitlab-2026-10712, GHSA-93jf-78vf-79px.