CVE-2017-1000353

CriticalActively exploited (CISA KEV)

Description

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.

SeverityCritical
CVSS9.8
Exploit probability—
ProductJenkins
PublishedJan 29, 2018
First seenJan 29, 2018
Added to KEVOct 2, 2025

How to fix

CISA required action

Apply mitigations per vendor instructions, follow applicable BOD 22-01 guidance for cloud services, or discontinue use of the product if mitigations are unavailable.

CISA due date: Oct 23, 2025
Update
  • org.jenkins-ci.main:jenkins-core2.57, 2.46.2 or later

Affected products

ProductAffected versionsFixed in
jenkins jenkinsv ≤ 2.56, v ≤ 2.46.1—
oracle communications_cloud_native_core_automated_test_suite1.9.0—
org.jenkins-ci.main:jenkins-coreMaven2.50 ≤ v < 2.57, v < 2.46.22.57, 2.46.2

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