CVE-2026-92128 Code injection in Jenkins Script Security Plugin
Attackers can execute arbitrary code on the Jenkins controller by exploiting a race condition in JAR file downloading and classpath loading.
- 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-2026-92128?
CVE-2026-92128 is a high-severity code injection vulnerability in Jenkins Script Security Plugin, published on 16 Sep 2026. Any signed-in user can exploit it over the network, with no action from the victim.
Official description
Jenkins Script Security Plugin 1415.v9a_f9b_3a_c253d and earlier downloads a JAR file specified by URL twice, confirming the approval of the first download and loading the classpath entries from the second, allowing attackers able to define classpath entries to execute arbitrary code in the context of the Jenkins controller JVM.
Weakness: CWE-494
Which versions are affected by CVE-2026-92128?
It affects 1 product.
Products include Jenkins Script Security.
How do I fix CVE-2026-92128?
No fix has been published for CVE-2026-92128 yet. Limit exposure of the affected software until one is available.
Upgrade, and never evaluate templates, expressions or code built from user input. More about Code injection.
Is CVE-2026-92128 being exploited?
There is no known exploitation of CVE-2026-92128 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-5gc7-28q4-677m.