CVE-2026-52741 GoCD has stored XSS possible via tracking tool link highlighting on Compare Pipeline pages
An attacker with commit access can inject malicious scripts via commit comments, leading to stored XSS and potential session hijacking or unauthorized actions.
- Exploited in the wild
- Not known
- Login needed
- Any signed-in user
- Attackable
- Over the internet
- Victim action needed
- A user has to click or open something
- Fix
- None listed
What is CVE-2026-52741?
CVE-2026-52741 is a high-severity cross-site scripting vulnerability in gocd, published on 21 Sep 2026. Any signed-in user can exploit it over the network, and only if a user opens a file or follows a link.
Official description
GoCD is a continuous deliver server. From 18.3.0 until 26.1.0, GoCD can generate unescaped tracking-tool links from commit comments when a project uses a lenient Tracking Tool regular expression with an ID capturing group, such as JIRA-(.+). An attacker with commit access to a tracked material can place URI or HTML special characters in a matching commit comment, causing stored cross-site scripting when a victim views an affected Compare Pipeline page. Deployments without Tracking Tool integration, without an ID capturing group, or with conservative matchers that cannot match special characters are not affected. Successful exploitation can expose a privileged user session or allow changes using the victim's credentials and privileges. This issue is fixed in version 26.1.0.
Weakness: CWE-80
Which versions are affected by CVE-2026-52741?
How do I fix CVE-2026-52741?
No fix has been published for CVE-2026-52741 yet. Limit exposure of the affected software until one is available.
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-2026-52741 being exploited?
There is no known exploitation of CVE-2026-52741 in the wild and no public exploit code.
Sources
Also known as GHSA-hj3c-q23m-fxcg.