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Critical 9.0Published Aug 5, 2026

CVE-2026-70426In Remoting 3384.v60d89463d9e0 and earlier, except 3355.3357.v931d3c992987, included in Jenkins 2.575 and earlier, LTS 2.568.1 and earlier, the JEP-200 class filter is not applied to classes resolved…

Updated under an hour ago ()

Does this affect you?

It affects Jenkins Project Jenkins and 1 other product. Add what you run to find out whether that includes you.

No exploitation reported and no EPSS estimate yet.

In Remoting 3384.v60d89463d9e0 and earlier, except 3355.3357.v931d3c992987, included in Jenkins 2.575 and earlier, LTS 2.568.1 and earlier, the JEP-200 class filter is not applied to classes resolved via a fallback path in the Remoting deserialization implementation, allowing agent processes, code running on agents, and attackers with Agent/Connect permission to bypass the JEP-200 deserialization filter for classes on the Jenkins core classpath.

CVSS
9.0 CRITICAL (v3.1, CISA ADP)CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:C/C:H/I:H/A:H
Weakness (CWE)
CWE-502
Known exploited
Not in CISA's KEV catalog
EPSS (exploitation in the next 30 days)
Not loaded for this CVE
Assigned by
jenkins
NVD analysis
Awaiting Analysis
Record last updated
Aug 5, 2026
First seen by InfoSec Signals
Oct 9, 2026

Affected products

Affected products
Jenkins Project Jenkins
jenkins_project:jenkins (from the name)
from 2.576 not affected; 2.568.2 builds before 2.568.* not affected
CNA record
Jenkins Project Remoting
jenkins_project:remoting (from the name)
from 3385.vf1123fb_515da_ not affected; 3355.3357.v931d3c992987 builds before 3355.* not affected
CNA record

References

References

The CVE record is authoritative. Products marked “from the name” were identified from the CNA's free-text names, not a CPE, and are matched less certainly. This product uses the NVD API but is not endorsed or certified by the NVD.

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