Description
Jenkins 2.587 and earlier, LTS 2.580.1 and earlier does not restrict item types in collections after deserialization, allowing attackers with access to POST config.xml API endpoints to submit crafted `config.xml` files that can lead to, e.g., stored cross-site scripting (XSS) vulnerabilities.
Published: 2026-10-28
Score: 5.4 Medium
EPSS: < 1% Very Low
KEV: No
AI Analysis

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Remediation

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Tracking

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Advisories

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History

Fri, 06 Nov 2026 19:30:00 +0000

Type Values Removed Values Added
Metrics cvssV3_1

{'score': 5.4, 'vector': 'CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:N'}

ssvc

{'options': {'Automatable': 'no', 'Exploitation': 'none', 'Technical Impact': 'partial'}, 'version': '2.0.3'}

cvssV3_1

{'score': 5.4, 'vector': 'CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:L/I:L/A:N'}


Fri, 06 Nov 2026 00:15:00 +0000

Type Values Removed Values Added
Title Jenkins Config.xml Deserialization Allows Stored XSS via POST API jenkins: Jenkins: Stored cross-site scripting via improper collection element deserialization
Weaknesses CWE-79
References
Metrics threat_severity

None

threat_severity

Moderate


Mon, 02 Nov 2026 19:15:00 +0000

Type Values Removed Values Added
Title Jenkins Config.xml Deserialization Allows Stored XSS via POST API

Mon, 02 Nov 2026 17:15:00 +0000

Type Values Removed Values Added
Title Unrestricted Deserialization of config.xml Enables Stored XSS via POST API
Weaknesses CWE-79

Mon, 02 Nov 2026 15:30:00 +0000

Type Values Removed Values Added
CPEs cpe:2.3:a:jenkins:jenkins:*:*:*:*:-:*:*:*
cpe:2.3:a:jenkins:jenkins:*:*:*:*:lts:*:*:*
Metrics cvssV3_1

{'score': 5.4, 'vector': 'CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:N'}


Wed, 28 Oct 2026 19:15:00 +0000

Type Values Removed Values Added
Title Unrestricted Deserialization of config.xml Enables Stored XSS via POST API
First Time appeared Jenkins
Jenkins jenkins
Jenkins Project
Jenkins Project jenkins
Weaknesses CWE-502
CWE-79
Vendors & Products Jenkins
Jenkins jenkins
Jenkins Project
Jenkins Project jenkins

Wed, 28 Oct 2026 17:00:00 +0000

Type Values Removed Values Added
Description Jenkins 2.587 and earlier, LTS 2.580.1 and earlier does not restrict item types in collections after deserialization, allowing attackers with access to POST config.xml API endpoints to submit crafted `config.xml` files that can lead to, e.g., stored cross-site scripting (XSS) vulnerabilities.
References

Subscriptions

Jenkins Jenkins
Jenkins Project Jenkins
cve-icon MITRE

Status: PUBLISHED

Assigner: jenkins

Published:

Updated: 2026-11-05T17:33:16.687Z

Reserved: 2026-10-27T13:10:56.913Z

Link: CVE-2026-117613

cve-icon Vulnrichment

Updated: 2026-11-05T17:32:35.139Z

cve-icon NVD

Status : Modified

Published: 2026-10-28T17:18:20.640

Modified: 2026-11-05T18:17:04.257

Link: CVE-2026-117613

cve-icon Redhat

Severity : Moderate

Publid Date: 2026-10-28T16:48:29Z

Links: CVE-2026-117613 - Bugzilla

cve-icon OpenCVE Enrichment

Updated: 2026-11-06T02:15:18Z

Weaknesses