CVE-2026-27099

At a glance

Severity: HIGH 8.0
EPSS: EPSS 0.48 % · percentile 41 (2026-10-27)
State: PUBLISHED
Published: 2026-02-18
Updated: 2026-02-18
Assigner: jenkins
NVD status: Analyzed

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.

Scores

Version	Score	Vector	Scored by
CVSS 3.1	HIGH 8.0	CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:U/C:H/I:H/A:H	CISA-ADP
CVSS 3.1	HIGH 8.0	CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:U/C:H/I:H/A:H	NVD · 134c704f-9b21-4f2e-91b3-4a467353bcc0 (Secondary)

Weaknesses (CWE)

CWE-79

Advisories

GHSA-85h6-5m3v-gx37 — Jenkins has a stored XSS vulnerability in node offline cause description

European references

ENISA EUVD · EUVD-2026-8091
GCVE · GCVE-0-2026-27099

Affected configurations (NVD CPE)

cpe:2.3:a:jenkins:jenkins:*:*:*:*:-:*:*:* ≥ 2.483 < 2.551
cpe:2.3:a:jenkins:jenkins:*:*:*:*:lts:*:*:* ≥ 2.492.1 < 2.541.2

Affected products

Product	Versions
Jenkins Project · Jenkins	unaffected 0 < 2.483 ; unaffected 2.551 < * ; unaffected 2.541.2 < 2.541.*

References

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

Sources

Source	Licence
CVE List (CVEProject cvelistV5)	CVE Program Terms of Use
EPSS (FIRST.org)	FIRST — attribution requested
ENISA EUVD	ENISA — reproduction authorised, source acknowledged
NVD (NIST) via fkie-cad/nvd-json-data-feeds	Public domain — this product uses data from the NVD API but is not endorsed or certified by the NVD