CVE-2026-27099 - Vulnerability Details - OpenCVE

Jenkins 2.483 through 2.550 (both inclusive), LTS 2.492.1 through 2.541.1 (both inclusive) does not escape the user-provided description of the "Mark temporarily offline" offline cause, resulting in a stored cross-site scripting (XSS) vulnerability exploitable by attackers with Agent/Configure or Agent/Disconnect permission.

No CVSS v4.0

Attack Vector Network

Attack Complexity Low

Privileges Required Low

Scope Unchanged

Confidentiality Impact High

Integrity Impact High

Availability Impact High

User Interaction Required

No CVSS v3.0

No CVSS v2

This CVE is not in the KEV list.

No EPSS score available.

Exploitation none

Automatable no

Technical Impact total

No data.

No data.

No data.

No data.

Advisories

No advisories yet.

Fixes

Solution

No solution given by the vendor.

Workaround

No workaround given by the vendor.

References

Link	Providers
https://www.jenkins.io/security/advisory/2026-02-18/#SECURITY-3669

History

Wed, 18 Feb 2026 15:15:00 +0000

Type	Values Removed	Values Added
Weaknesses		CWE-79
Metrics		cvssV3_1 `{'score': 8, 'vector': 'CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:U/C:H/I:H/A:H'}` ssvc `{'options': {'Automatable': 'no', 'Exploitation': 'none', 'Technical Impact': 'total'}, 'version': '2.0.3'}`

Wed, 18 Feb 2026 14:45:00 +0000

Type	Values Removed	Values Added
Description		Jenkins 2.483 through 2.550 (both inclusive), LTS 2.492.1 through 2.541.1 (both inclusive) does not escape the user-provided description of the "Mark temporarily offline" offline cause, resulting in a stored cross-site scripting (XSS) vulnerability exploitable by attackers with Agent/Configure or Agent/Disconnect permission.
References		https://www.jenkins.io/security/advisory/2026-02-18/#SECURITY-3669

Projects

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MITRE

Status: PUBLISHED

Assigner: jenkins

Published: 2026-02-18T14:17:43.911Z

Updated: 2026-02-18T14:56:27.973Z

Reserved: 2026-02-17T16:48:49.373Z

Link: CVE-2026-27099

Vulnrichment

Updated: 2026-02-18T14:54:45.810Z

NVD

Status : Awaiting Analysis

Published: 2026-02-18T15:18:43.857

Modified: 2026-02-18T17:51:53.510

Link: CVE-2026-27099

Redhat

No data.

OpenCVE Enrichment

No data.

Weaknesses

CWE-79

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