CVE-2026-104989— Pre-authentication remote code execution in Chaos V-Ray Swarm

Quick assessment

Affected

Chaos Software V-Ray Swarm

Exploitation

No confirmed in-the-wild exploitation; assess based on exposure

Recommended action

Check the vendor advisory and references for a fixed version. If immediate upgrade is impossible, restrict exposure and increase monitoring.

Chaos Software V-Ray 2.0.19 及以下版本中的包上传功能存在不受控制的搜索路径元素漏洞，允许远程未认证攻击者通过重定向对库文件的访问来执行任意代码。

CVSS 9.3 · Critical Updated Nov 10, 2026

Possible ATT&CK Techniques 1 AI

T1190 · Exploit Public-Facing Application

Affected Version Matrix 1

Vendor	Product	Version Range	Status
Chaos Software	V-Ray Swarm	`≤ 2.0.19`	affected

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Vulnerability Information

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Vulnerability Title

Pre-authentication remote code execution in Chaos V-Ray Swarm

Source: CVE Program / CVE List V5

Vulnerability Description

Uncontrolled search path element in package upload feature in Chaos Software V-Ray versions through 2.0.19 allows remote unauthenticated attackers to execute arbitrary code via redirecting access to libraries

Source: CVE Program / CVE List V5

CVSS Information

CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N

Source: CVE Program / CVE List V5

Vulnerability Type

对搜索路径元素未加控制

Source: CVE Program / CVE List V5

Affected Products

Vendor	Product	Affected Versions	CPE	Subscribe
Chaos Software	V-Ray Swarm	0 ~ 2.0.19	-

II. Public POCs for CVE-2026-104989

#	POC Description	Source Link	Shenlong Link

AI-Generated POC Premium

No public POC found.

III. Intelligence Information for CVE-2026-104989

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Vendor Advisories for CVE-2026-104989 (1)

🔗 Vulnerability-Disclosures/2026/MNDT-2026-0043.md at master · mandiant/Vulnerability-Disclosures · GitHub third-party-advisory

Vendor Pages for CVE-2026-104989 (1)

🔗 2.0.21 - V-Ray Swarm - Chaos Docs Read full article vendor-advisory

https://www.cve.org/CVERecord?id=CVE-2026-104989

IV. Related Vulnerabilities

Same weakness: CWE-427