In JetBrains YouTrack before 2026.2.18634 improper permission checks allowed overwriting of bundled apps via the app import endpoint

No CVSS v4.0

Attack Vector Network

Attack Complexity Low

Privileges Required Low

Scope Unchanged

Confidentiality Impact None

Integrity Impact High

Availability Impact None

User Interaction None

No CVSS v3.0

No CVSS v2

This CVE is not in the KEV list.

The EPSS score is 0.00174.

Exploitation none

Automatable no

Technical Impact partial

Default status is the baseline for the product, each version can override it (e.g. patched versions marked unaffected).

Vendor Product Default status Versions
JetBrains YouTrack unaffected
Version Status Constraints
0 affected < 2026.2.18634

No data.

No data.

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Vendors Products
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Advisories

No advisories yet.

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

Tue, 08 Sep 2026 11:30:00 +0000

Type Values Removed Values Added
Metrics ssvc

{'options': {'Automatable': 'no', 'Exploitation': 'none', 'Technical Impact': 'partial'}, 'version': '2.0.3'}

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

Type Values Removed Values Added
Title Improper permission checks allow overwriting of bundled apps via app import endpoint
First Time appeared Jetbrains
Jetbrains youtrack
Vendors & Products Jetbrains
Jetbrains youtrack

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

Type Values Removed Values Added
Description In JetBrains YouTrack before 2026.2.18634 improper permission checks allowed overwriting of bundled apps via the app import endpoint
Weaknesses CWE-863
References
Metrics cvssV3_1

{'score': 6.5, 'vector': 'CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:H/A:N'}

Projects

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cve-icon MITRE

Status: PUBLISHED

Assigner: JetBrains

Published:

Updated: 2026-09-08T10:35:02.522Z

Reserved: 2026-09-07T16:13:36.999Z

Link: CVE-2026-86490

cve-icon Vulnrichment

Updated: 2026-09-08T10:33:11.827Z

cve-icon NVD

Status : Deferred

Published: 2026-09-07T17:17:27.280

Modified: 2026-09-08T15:30:03.247

Link: CVE-2026-86490

cve-icon Redhat

No data.

cve-icon OpenCVE Enrichment

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

Weaknesses