In JetBrains YouTrack before 2026.2.18634 stored XSS was possible via project and organization icon uploads

Metrics

No CVSS v4.0

Attack Vector Network

Attack Complexity Low

Privileges Required High

Scope Unchanged

Confidentiality Impact Low

Integrity Impact Low

Availability Impact None

User Interaction Required

No CVSS v3.0

No CVSS v2

This CVE is not in the KEV list.

No EPSS score available.

Key SSVC decision points have not yet been added.

Affected Vendors & Products

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Advisories

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Fixes

Solution

No solution given by the vendor.

Workaround

No workaround given by the vendor.

References
Link Providers
https://www.jetbrains.com/privacy-security/issues-fixed/ cve-icon cve-icon
History

Mon, 07 Sep 2026 17:45:00 +0000

Type Values Removed Values Added
Title Stored Cross‑Site Scripting via Icon Uploads in JetBrains YouTrack

Mon, 07 Sep 2026 16:45:00 +0000

Type Values Removed Values Added
Description In JetBrains YouTrack before 2026.2.18634 stored XSS was possible via project and organization icon uploads
Weaknesses CWE-79
References
Metrics cvssV3_1

{'score': 3.5, 'vector': 'CVSS:3.1/AV:N/AC:L/PR:H/UI:R/S:U/C:L/I:L/A:N'}

Projects

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cve-icon MITRE

Status: PUBLISHED

Assigner: JetBrains

Published:

Updated: 2026-09-07T16:26:45.748Z

Reserved: 2026-09-07T16:13:37.226Z

Link: CVE-2026-86491

cve-icon Vulnrichment

No data.

cve-icon NVD

Status : Received

Published: 2026-09-07T17:17:27.397

Modified: 2026-09-07T17:17:27.397

Link: CVE-2026-86491

cve-icon Redhat

No data.

cve-icon OpenCVE Enrichment

Updated: 2026-09-07T17:30:06Z

Weaknesses