CVE-2026-57926: Critical severity JetBrains YouTrack vulnerability
Published Jun 26, 2026
·Updated
In JetBrains YouTrack before 2026.2.16593 the websandbox bridge was vulnerable to a prototype pollution attack
Affected Software
2 affected components
JetBrains YouTrack<2026.2.16593
JetBrains YouTrack<2026.2.16593
Event History
Jun 26, 2026
CVE Published
via MITRE·12:38 PM
Data Sourced
via MITRE·12:38 PM
DescriptionSeverityWeakness
Data Sourced
via NVD·02:17 PM
DescriptionSeverityWeaknessAffected Software
Frequently Asked Questions
1
What is the severity of CVE-2026-57926?
CVE-2026-57926 has a low severity rating of 2.6.
2
How do I fix CVE-2026-57926?
To fix CVE-2026-57926, update JetBrains YouTrack to version 2026.2.16593 or later.
3
What type of vulnerability is CVE-2026-57926?
CVE-2026-57926 is a prototype pollution vulnerability affecting the websandbox bridge in JetBrains YouTrack.
4
What does the risk rating of 15 for CVE-2026-57926 mean?
The risk rating of 15 indicates a low-impact vulnerability that may require user interaction for exploitation.
5
When was CVE-2026-57926 published?
CVE-2026-57926 was published on June 26, 2026.