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7.5

Jenkins Script Security Plugin lets attackers run code

CVE-2026-92128 · published 1 month ago
Summary

The Jenkins Script Security Plugin can be tricked into downloading a malicious file twice, letting an attacker load and execute their own code on the Jenkins server. This could give them control over the Jenkins controller and any jobs it runs. Update to the latest version of the plugin or remove it if it is not needed.

What to do

The CVE record does not list a fixed version. Check the vendor's site or the advisory links below - a fix may already be released.

Affected software
VendorProductAffected versions
jenkins project jenkins script security plugin <= 1415.v9a_f9b_3a_c253d
Original advisory text
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 th...
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.
References
Fix within
Internet-facing 14 days
Internal At next upgrade
  • Not known to be exploited
  • Needs hands-on effort to exploit
  • Gives an attacker full control
Severity
7.5 High
Exploitation
<1% chance of attack within 30 days
Type
CWE-494Download of Code Without Integrity Check
Timeline
Published16 Sep 2026
Updated3 Nov 2026
First seen16 Sep 2026
Sources
CVE-2026-92128 · NVD
CVE-2026-92128 · MITRE
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