CVE-2026-86491 | BDVDB-2026-368901 Detail

JetBrainsYouTrack

Description#

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

Per CVSS v3.1: confidentiality impact low, integrity impact low, availability impact none. Attack vector: network.

CWE-79 Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')

No public exploit known

3.5 Low

less than 1%, Very Low

Estimated chance of exploitation in the next 30 days. EPSS percentile: 15.5.

Not listed in the CISA Known Exploited Vulnerabilities catalog.

Cross-Site Scripting

No specific action is recorded in the source data. Check the references for vendor guidance.

Not available

3.5 Low

CVSS:3.1/AV:N/AC:L/PR:H/UI:R/S:U/C:L/I:L/A:N

Not available

Not available

Source: CVE List v5 (record); CISA KEV (kev, action); FIRST EPSS (epss).