CVE-2026-57926

CRITICAL

INFO Priority: 0.03 BB Relevance: 80/100

Published: 2026-06-26 Modified: 2026-10-25 First seen: 2026-10-29 Status: active

Network Low Complexity No Auth No Interaction Conf. Impact Integ. Impact

AV: Network

AC: Low

PR: None

UI: None

S: Unchanged

C: High

I: High

A: High

In JetBrains YouTrack before 2026.2.16593 the websandbox bridge was vulnerable to a prototype pollution attack

CWE-1321

Vendor	Product	Version
jetbrains	youtrack	< 2026.2.16593

Vendor Advisory

80 / 100

✓ Network accessible
✓ No authentication
✓ Low complexity
✓ No user interaction

9.8 / 10.0 v3.1

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

0.34%

Raw Score 0.003370

Percentile 27.1%

Date 2026-10-29

2026-10-29

0.00337

2026-10-28

0.00337

nvd ref →