---
id: CVE-2026-103491
title: >-
  In JetBrains YouTrack before 2026.2.19422 iDOR in the issue activities API
  allowed reading restricted issues
summary: >-
  In JetBrains YouTrack before 2026.2.19422 iDOR in the issue activities API
  allowed reading restricted issues
severity: medium
cvss: 6.5
cvssVector: 'CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N'
cwe:
  - CWE-639
vendor: jetbrains
product: youtrack
affected:
  - youtrack < 2026.2.19422
patched:
  - youtrack 2026.2.19422
published: '2026-10-01'
updated: '2026-10-01'
sourceUpdated: '2026-10-01T14:28:17.527'
source: NVD
sourceUrl: 'https://nvd.nist.gov/vuln/detail/CVE-2026-103491'
references:
  - url: 'https://www.jetbrains.com/privacy-security/issues-fixed/'
    label: cve@jetbrains.com
tags:
  - nvd
  - cve.org
ssvc:
  exploitation: none
  automatable: 'no'
  technicalImpact: partial
  timestamp: '2026-10-01T13:09:44.768772Z'
ingestedAt: '2026-10-01T09:41:14.170Z'
epss: 0.00201
epssPercentile: 0.09853
---

## Overview

In JetBrains YouTrack before 2026.2.19422 iDOR in the issue activities API allowed reading restricted issues

## Affected

- `youtrack < 2026.2.19422`

## Remediation

Upgrade past the affected range:

- `youtrack 2026.2.19422`