CVE-2026-117616 — Jenkins
HIGHCVE-2026-117616 is a high-severity (CVSS 8.8) Path Traversal vulnerability in jenkins jenkins. A fix is available — see the affected versions and patch details below.
Jenkins 2.587 and earlier, LTS 2.580.1 and earlier provides an HTTP endpoint that loads agents by name without validating the name, allowing attackers with Overall/Read permission to…
EPSS Exploitation Probability
Probability of exploitation in the next 30 days, from FIRST.org EPSS.
How urgent is this, really
Where this sits among everything scored
Description
Jenkins 2.587 and earlier, LTS 2.580.1 and earlier provides an HTTP endpoint that loads agents by name without validating the name, allowing attackers with Overall/Read permission to load any config.xml file on the controller file system as an agent configuration, and to overwrite an arbitrary config.xml file when that agent is saved, potentially resulting in arbitrary code execution.
Affected Products
jenkinsjenkinsDetection & mitigation playbook
Vendor / applianceDetect
Inventory every jenkins jenkins deployment and check each version against the affected-products list above.
Fix
Apply the jenkins jenkins security patch or hotfix for CVE-2026-117616 on the affected version, following the vendor advisory for your exact build.
Workarounds
Resolve every user-supplied path to its canonical form and reject anything that escapes the intended directory, and run the component under an account that has no read or write access outside the directory it legitimately serves. Alongside that, restrict the management interface to trusted networks and apply the vendor's recommended configuration mitigations.
Frequently Asked Questions
Is CVE-2026-117616 being exploited in your environment?
Detect and block the exploit chain at execution, on systems you cannot patch yet.