Bug 2570593 (CVE-2026-125358) - CVE-2026-125358 universal-modder: universal-modder: unauthorized command execution via missing WebSocket origin validation
Summary: CVE-2026-125358 universal-modder: universal-modder: unauthorized command exec...
Keywords:
Status: NEW
Alias: CVE-2026-125358
Product: Security Response
Classification: Other
Component: vulnerability
Version: unspecified
Hardware: All
OS: Linux
high
high
Target Milestone: ---
Assignee: Product Security DevOps Team
QA Contact:
URL:
Whiteboard:
Depends On:
Blocks:
TreeView+ depends on / blocked
 
Reported: 2026-11-10 20:09 UTC by OSIDB Bzimport
Modified: 2026-11-10 23:12 UTC (History)
0 users

Fixed In Version:
Clone Of:
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Description OSIDB Bzimport 2026-11-10 20:09:11 UTC 
Universal-modder before commit e88f6876745427321eb755ebc98276063a962d8a contains a missing WebSocket Origin validation vulnerability in the HostLink class of its passthrough example mods that allows remote attackers to execute Minecraft commands. Any web page open in the player's browser can connect cross-site to the unauthenticated loopback WebSocket and send cmd messages that WorldBridge.command() runs with operator authority.
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