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CVE-2026-42086

🗓️ 05 Jun 2026 19:30:28Reported by redhat.comType 
redhatcve
 redhatcve
🔗 access.redhat.com👁 3 Views

OpenC3 COSMOS pre-7.0.0 uses unsafe eval in Command Sender UI, enabling self-XSS via array input and session token exposure.

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Refs
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ATTACKERKB
CVE-2026-42086
4 May 202617:15
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CVE-2026-42086
20 Apr 202603:12
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OpenC3 COSMOS 跨站脚本漏洞
4 May 202600:00
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CVE-2026-42086 OpenC3 COSMOS: Self-XSS in the Command Sender
4 May 202617:15
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4 May 202617:15
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OpenC3 COSMOS is Vulnerable to Self-XSS Through the Command Sender
22 Apr 202622:22
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NVD
CVE-2026-42086
4 May 202618:16
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OSV
GHSA-FFQ5-QPVF-XQ7X OpenC3 COSMOS is Vulnerable to Self-XSS Through the Command Sender
22 Apr 202622:22
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PYSEC-2026-105
4 May 202618:16
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05 Jun 2026 19:30Current
5.8Medium risk
Vulners AI Score5.8
CVSS 3.14.6
EPSS0.00043
SSVC
3