CVE-2026-27099HIGH 8.0EPSS p37.0%

CVE-2026-27099CVE-2026-27099

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.

Scoring

CVSS 3.18.0 (HIGH)
VectorCVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:U/C:H/I:H/A:H
EPSS0.47% probability of exploitation · percentile 37.0% · 2026-06-18T12:00:27Z
Published2026-02-18
Last modified2026-02-20

Underlying weaknesses· 1

CWE-79

References

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

1

TypeTargetConfidenceTier
WeaknessImproper Neutralization of Input During Web Page Generation ('Cross-site Scripting')cwe-790%live

Related by meaning· 6

Nearest entities by semantic similarity across the cs-graph corpus.

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CVE-2026-53441
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CVE-2026-42524
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CVE-2026-42523
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CVE-2025-47885
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CVE-2025-5806
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CVE-2026-53437
Sourced from NVD + FIRST.org EPSS. Curated for EU compliance use cases by Adam Lundqvist, Founder at SQUR.