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.

No CVSS v4.0

Attack Vector Network

Attack Complexity High

Privileges Required None

Scope Changed

Confidentiality Impact High

Integrity Impact High

Availability Impact High

User Interaction None

No CVSS v3.0

No CVSS v2

This CVE is not in the KEV list.

No EPSS score available.

Exploitation none

Automatable no

Technical Impact total

Default status is the baseline for the product, each version can override it (e.g. patched versions marked unaffected).

Vendor Product Default status Versions
Jenkins Project Jenkins affected
Version Status Constraints
2.576 unaffected < *
2.568.2 unaffected < 2.568.*
Jenkins Project Remoting affected
Version Status Constraints
3385.vf1123fb_515da_ unaffected < *
3355.3357.v931d3c992987 unaffected < 3355.*

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No data.

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Project Subscriptions

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Advisories

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Fixes

Solution

No solution given by the vendor.

Workaround

No workaround given by the vendor.

References
Link Providers
https://www.jenkins.io/security/advisory/2026-08-05/#SECURITY-3911 cve-icon
History

Wed, 05 Aug 2026 19:45:00 +0000

Type Values Removed Values Added
Title Jenkins Remoting Deserialization Bypass Allows Arbitrary Code Execution via Agent

Wed, 05 Aug 2026 19:30:00 +0000

Type Values Removed Values Added
Weaknesses CWE-502
Metrics cvssV3_1

{'score': 9, 'vector': 'CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:C/C:H/I:H/A:H'}

ssvc

{'options': {'Automatable': 'no', 'Exploitation': 'none', 'Technical Impact': 'total'}, 'version': '2.0.3'}

Wed, 05 Aug 2026 18:00:00 +0000

Type Values Removed Values Added
Description 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.
References

Projects

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cve-icon MITRE

Status: PUBLISHED

Assigner: jenkins

Published:

Updated: 2026-08-05T18:16:23.441Z

Reserved: 2026-08-04T14:13:20.602Z

Link: CVE-2026-70426

cve-icon Vulnrichment

Updated: 2026-08-05T18:16:13.114Z

cve-icon NVD

No data.

cve-icon Redhat

No data.

cve-icon OpenCVE Enrichment

Updated: 2026-08-05T19:30:05Z

Weaknesses