Jenkins versions 2.56 and earlier as well as 2.46.1 LTS and earlier are vulnerable to an unauthenticated remote code execution. An unauthenticated remote code execution vulnerability allowed attackers to transfer a serialized Java `SignedObject` object to the Jenkins CLI, that would be deserialized using a new `ObjectInputStream`, bypassing the existing blacklist-based protection mechanism. We're fixing this issue by adding `SignedObject` to the blacklist. We're also backporting the new HTTP CLI protocol from Jenkins 2.54 to LTS 2.46.2, and deprecating the remoting-based (i.e. Java serialization) CLI protocol, disabling it by default.
Advisories
Source ID Title
Github GHSA Github GHSA GHSA-26wc-3wqp-g3rp Deserialization of Untrusted Data in Jenkins
Fixes

Solution

No solution given by the vendor.


Workaround

No workaround given by the vendor.

History

Wed, 22 Oct 2025 00:15:00 +0000

Type Values Removed Values Added
References
Metrics ssvc

{'options': {'Automatable': 'yes', 'Exploitation': 'poc', 'Technical Impact': 'total'}, 'version': '2.0.3'}

ssvc

{'options': {'Automatable': 'yes', 'Exploitation': 'active', 'Technical Impact': 'total'}, 'version': '2.0.3'}


Tue, 21 Oct 2025 20:30:00 +0000


Tue, 21 Oct 2025 19:30:00 +0000


Fri, 03 Oct 2025 14:45:00 +0000

Type Values Removed Values Added
CPEs cpe:2.3:a:jenkins:jenkins:*:*:*:*:*:*:*:* cpe:2.3:a:jenkins:jenkins:*:*:*:*:-:*:*:*

Thu, 02 Oct 2025 15:15:00 +0000

Type Values Removed Values Added
Metrics kev

{'dateAdded': '2025-10-02T00:00:00+00:00', 'dueDate': '2025-10-23T00:00:00+00:00'}


Wed, 01 Oct 2025 15:15:00 +0000

Type Values Removed Values Added
Metrics ssvc

{'options': {'Automatable': 'yes', 'Exploitation': 'poc', 'Technical Impact': 'total'}, 'version': '2.0.3'}


cve-icon MITRE

Status: PUBLISHED

Assigner: mitre

Published:

Updated: 2025-10-21T23:45:56.725Z

Reserved: 2018-01-29T00:00:00.000Z

Link: CVE-2017-1000353

cve-icon Vulnrichment

Updated: 2024-08-05T22:00:39.646Z

cve-icon NVD

Status : Modified

Published: 2018-01-29T17:29:00.193

Modified: 2025-10-22T00:16:01.120

Link: CVE-2017-1000353

cve-icon Redhat

Severity : Important

Publid Date: 2017-04-26T00:00:00Z

Links: CVE-2017-1000353 - Bugzilla

cve-icon OpenCVE Enrichment

No data.