CVE-2026-27099

HIGH EPSS 39.3%
Published Feb 18, 20264mo ago · Modified Jun 17, 20261w ago
8.0 CVSS 3.1
High
Find Similar
Published Feb 18, 2026 4mo ago
Last Modified Jun 17, 2026 1w ago

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.

CVSS Details

Base Score
8.0
Exploitability
2.1
Impact
5.9
Vector string
CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:U/C:H/I:H/A:H
Attack Vector Network
Attack Complexity Low
Privileges Required Low
User Interaction Required
Scope Unchanged
Confidentiality High
Integrity High
Availability High

Threat Intelligence

EPSS Exploit Probability
39.3% percentile
Exploit & Patch Status
No Known Exploit
No Patch Available

Weaknesses 1

CWE-79 Cross-site Scripting Injection

Affected Products 2

VendorProductVersionRange
jenkinsjenkins*≥2.483  –  <2.551
jenkinsjenkins*≥2.492.1  –  <2.541.2

References 1

  • jenkins.io https://www.jenkins.io/security/advisory/2026-02-18/#SECURITY-3669
    Vendor Advisory

Remediation

No remediation data recorded yet

Check vendor advisories and the NVD entry for patch availability.