Jenkins · Jenkins
CVE-2017-1000353
Jenkins Remote Code Execution Vulnerability
What it is
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.
CISA: Jenkins contains a remote code execution vulnerability. This vulnerability that could allowed attackers to transfer a serialized Java SignedObject object to the remoting-based Jenkins CLI, that would be deserialized using a new ObjectInputStream, bypassing the existing blocklist-based protection mechanism.
What to do
Apply mitigations per vendor instructions, follow applicable BOD 22-01 guidance for cloud services, or discontinue use of the product if mitigations are unavailable.
Deadline for US federal agencies: October 23, 2025
More exploited flaws from Jenkins
| Added | Vulnerability | Product | Severity | Attack chance |
|---|---|---|---|---|
| Aug 19, 2024 | Command Line Interface (CLI) Path Traversal | Jenkins Command Line Interface (CLI) | Critical 9.8 | >99.9% |
| May 12, 2023 | User Interface (UI) Information Disclosure | Jenkins User Interface (UI) | High 7.5 | 23% |
| Apr 25, 2022 | Sandbox Bypass | Script Security Plugin | Critical 9.9 | 74% |
| Mar 25, 2022 | Remote Code Execution | Matrix Project Plugin | Critical 9.9 | 97% |
| Feb 10, 2022 | Stapler Web Framework Deserialization of Untrusted Data | Jenkins Stapler Web Framework | Critical 9.8 | 98% |
Sources: Known Exploited Vulnerabilities (CISA, public domain), CVE records (cve.org) and EPSS (FIRST). The chance of attacks is the EPSS estimate that someone will try to exploit the flaw in the next 30 days.