In JetBrains YouTrack before 2026.2.19422 stored XSS via Mermaid and LaTeX content was possible

No CVSS v4.0

Attack Vector Network

Attack Complexity Low

Privileges Required None

Scope Unchanged

Confidentiality Impact High

Integrity Impact High

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.

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 < 2026.2.19422

No data.

No data.

OpenCVE Enrichment is a feature of OpenCVE that uses AI to automatically link vendors and products to CVEs. Learn more on GitHub.

No data.

Project Subscriptions

No data.

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

Thu, 01 Oct 2026 11:00:00 +0000

Type Values Removed Values Added
Title Stored XSS via Mermaid and LaTeX in JetBrains YouTrack

Thu, 01 Oct 2026 09:30:00 +0000

Type Values Removed Values Added
Description In JetBrains YouTrack before 2026.2.19422 stored XSS via Mermaid and LaTeX content was possible
Weaknesses CWE-79
References
Metrics cvssV3_1

{'score': 8.1, 'vector': 'CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:N'}

Projects

Sign in to view the affected projects.

cve-icon MITRE

Status: PUBLISHED

Assigner: JetBrains

Published:

Updated: 2026-10-01T09:15:26.048Z

Reserved: 2026-09-30T17:07:14.199Z

Link: CVE-2026-103493

cve-icon Vulnrichment

No data.

cve-icon NVD

Status : Awaiting Analysis

Published: 2026-10-01T10:17:14.780

Modified: 2026-10-01T12:41:25.413

Link: CVE-2026-103493

cve-icon Redhat

No data.

cve-icon OpenCVE Enrichment

Updated: 2026-10-01T10:45:07Z

Weaknesses