CVE-2026-70441 Cross-site scripting in Jenkins Summary Display Plugin
Stored XSS in Jenkins Summary Display Plugin allows attackers with item permissions to execute scripts in build reports, potentially compromising user sessions.
- 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-2026-70441?
CVE-2026-70441 is a medium-severity cross-site scripting vulnerability in Jenkins Summary Display Plugin, published on 5 Aug 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
Jenkins Summary Display Plugin 1.15 and earlier does not escape the job name in a JavaScript context in build report pages, resulting in a stored cross-site scripting (XSS) vulnerability exploitable by attackers with Item/Create or Item/Configure permission.
Weakness: CWE-79
Which versions are affected by CVE-2026-70441?
How do I fix CVE-2026-70441?
No fix has been published for CVE-2026-70441 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-2026-70441 being exploited?
There is no known exploitation of CVE-2026-70441 in the wild and no public exploit code.
Sources
Also known as GHSA-3gjc-wq56-9w9h.