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CVE-2026-84645

high CVSS 8.8 EPSS 0.8%

In Jenkins 2.579 and earlier, LTS 2.568.2 and earlier, objects of types marked as storing their configuration in independent top-level configuration files in Jenkins (such as the global configuration and jobs) can appear as nested field values in user-submitted `config.xml` documents and subsequently handle HTTP requests via Stapler, resulting in remote code execution.

Versions it affects

Software versions checked with the free lookup that CVE-2026-84645 applies to, and the release that fixes it where the sources name one.

Jenkins 1.509 fixed in 2.580

At a glance

Severity
High
CVSS base score
8.8 out of 10
Known exploited
Not in CISA's catalogue of exploited vulnerabilities
EPSS
0.8% probability of exploitation in the next 30 days, higher than 54% of scored vulnerabilities
Weakness
CWE-915
Published
2026-09-02
NVD CVE.org

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