CVE-2026-84647
Received Received - Intake

Stored Object Injection in Jenkins Stapler

Publication date: 2026-09-02

Last updated on: 2026-09-02

Assigner: Jenkins Project

Description
In Stapler 2107.v8dfcb_e8ed317 and earlier, except 2088.2093.vd7c3e58008a_6, included in Jenkins 2.579 and earlier, LTS 2.568.2 and earlier, Stapler does not restrict the types of objects that can be instantiated via form data binding to those compatible with the expected field type, allowing attackers with Overall/Read permission to instantiate types related to configuration for which that field type was not intended.

CVSS Scores

EPSS Scores

Probability:
Percentile:

Meta Information

Published
2026-09-02
Last Modified
2026-09-02
Generated
2026-09-02
AI Q&A
2026-09-02
EPSS Evaluated
N/A
NVD
CVE-2026-84647
EUVD
EUVD-2026-70113

Affected Vendors & Products

Showing 3 associated CPEs
Vendor Product Version / Range
stapler stapler to 2107.v8dfcb_e8ed317 (exc)
jenkins jenkins to 2.579 (inc)
jenkins jenkins to 2.568.2 (inc)

Helpful Resources

Exploitability

CWE
CWE Icon
KEV
KEV Icon
CWE ID Description
CWE-UNKNOWN

Attack-Flow Graph

AI Quick Actions

Instant insights powered by AI
Executive Summary

This vulnerability exists in Stapler, a component used by Jenkins, where it fails to restrict the types of objects that can be created via form data binding. Attackers with Overall/Read permission can exploit this to instantiate unintended types, potentially affecting configuration fields.

Impact Analysis

An attacker with Overall/Read permission could exploit this to create unintended objects, potentially leading to unauthorized configuration changes or other malicious actions within the Jenkins environment.

Mitigation Strategies

Upgrade Jenkins to version 2.580 or later and LTS to 2.568.3 or later to address the deserialization flaw. Remove Overall/Read permissions from untrusted users to limit attack surface.

Chat Assistant

Ask questions about this CVE
Hi! I’m here to help you understand CVE-2026-84647. Ask me anything about the vulnerability, its impact, or mitigation strategies.
0/70

EPSS Chart