Vulnerability Report

CVE-2026-53435

Title: Arbitrary deserialization leading to RCE

Arbitrary File Access

Proof Of Concept

PoC Available for CVE-2026-53435

CWE Category NVD-CWE-noinfo
Published Date Jun 10, 2026
Modified Date Jun 11, 2026
Exploit Status Available
Score 8.8 CVSS v
Exploit Probability (EPSS)
0.37%

Vulnerability Summary

CVE-2026-53435: In Jenkins 2.567 and earlier, LTS 2.555.2 and earlier, it is possible for attackers to have Jenkins deserialize arbitrary types defined in Jenkins core or plugins from an attacker-controlled `config.xml` submission in a way that allows them to handle HTTP requests afterwards. This can be used to impersonate any user and send HTTP requests on their behalf, up to and including use of the Script Console to run arbitrary code, or to read arbitrary files from the Jenkins controller.

Impacted Vendors

J
jenkins 1

Reference Links

https://www.jenkins.io/security/advisory/2026-06-10/#SECURITY-3707
CVSS v3.1
Source Entity 134c704f-9b21-4f2e-91b3-4a467353bcc0
Severity HIGH
8.8
Attack Vector
NETWORK
Complexity
LOW
Privileges
N/A
Interaction
NONE
Confidentiality
N/A
Integrity
N/A
Availability
N/A
Scope
UNCHANGED
RAW VECTOR CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

Associated Attack Patterns (CAPEC)

Total: Patterns

CVE-2026-53435 Exploits & PoCs (Proof Of Concept)

GitHub https://github.com/AmesianX/CVE-2026-53435
View Code
MODIFIED

Vulnerability data updated via NVD.

MODIFIED

Vulnerability data updated via NVD.

MODIFIED

Vulnerability data updated via NVD.

MODIFIED

Vulnerability data updated via NVD.

Attack Vector Matrix

Access Vector NETWORK
Complexity LOW
Privileges N/A
Interaction NONE
CVSS Vector String CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

Affected Stack

No specific products linked.