CVE-2026-84659 Missing authorization in Jenkins Script Security Plugin
Attackers can bypass sandbox restrictions by disabling global sandbox enforcement due to missing permission checks in the Jenkins Script Security Plugin.
- Exploited in the wild
- Not known
- Login needed
- Any signed-in user
- Attackable
- Over the internet
- Victim action needed
- Not needed
- Fix
- None listed
What is CVE-2026-84659?
CVE-2026-84659 is a medium-severity missing authorization vulnerability in Jenkins Script Security Plugin, published on 2 Sep 2026. Any signed-in user can exploit it over the network, with no action from the victim.
Official description
Jenkins Script Security Plugin 1412.v7737b_3405f86 and earlier does not enforce a permission check in the method that controls the "Force the use of the sandbox globally in the system" setting, allowing attackers to disable it through Stapler data binding.
Weakness: CWE-862
Which versions are affected by CVE-2026-84659?
It affects 1 product.
Products include Jenkins Script Security.
How do I fix CVE-2026-84659?
No fix has been published for CVE-2026-84659 yet. Limit exposure of the affected software until one is available.
Upgrade, and check permissions on every request on the server, not only in the interface. More about Missing authorization.
Is CVE-2026-84659 being exploited?
There is no known exploitation of CVE-2026-84659 in the wild and no public exploit code.
Other vulnerabilities in Jenkins Script Security Plugin
- CVE-2019-1003029 Jenkins Script Security Plugin Sandbox Bypass
- CVE-2022-43401 Sandbox bypass vulnerabilities in Jenkins Script Security Plugin and in Pipeline: Groovy Plugin
- CVE-2022-43403 Jenkins Script Security Plugin sandbox bypass vulnerability
- CVE-2022-43404 Sandbox bypass vulnerabilities in Jenkins Script Security Plugin and in Pipeline: Groovy Plugin
- CVE-2020-2279 Sandbox bypass vulnerability in Jenkins Script Security Plugin
Sources
Also known as GHSA-fc8j-cp67-6ww3.