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Nginx CVE-2026-45564

| EUVD-2026-36044 HIGH
OS Command Injection (CWE-78)
2026-06-10 GitHub_M
8.8
CVSS 3.1 · NVD
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Severity by source

NVD PRIMARY
8.8 HIGH
AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

Primary rating from NVD · only source for this CVE.

CVSS VectorNVD

CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
Attack Vector
Network
Attack Complexity
Low
Privileges Required
Low
User Interaction
None
Scope
Unchanged
Confidentiality
High
Integrity
High
Availability
High

Lifecycle Timeline

2
Analysis Generated
Jun 10, 2026 - 15:17 vuln.today
CVE Published
Jun 10, 2026 - 14:04 nvd
HIGH 8.8

DescriptionNVD

Roxy-WI is a web interface for managing Haproxy, Nginx, Apache and Keepalived servers. In versions 8.2.6.4 and prior, POST /config/versions/<service>/<server_ip>/<configver>/save interpolates the URL-path configver parameter directly into a config-version path that ends up at os.system(f"dos2unix -q {cfg}"). configver is not run through EscapedString (Pydantic doesn't validate path segments declared as str) and the surrounding .. block is the broken tuple-membership patch from GHSA-vapt-004. An authenticated user with role <= 3 ("user") therefore reaches a bin/sh -c command-injection sink. At time of publication, there are no publicly available patches.

AnalysisAI

Authenticated command injection in Roxy-WI versions 8.2.6.4 and prior allows low-privileged users (role <= 3, 'user') to execute arbitrary OS commands by abusing the configver URL-path parameter on POST /config/versions/<service>/<server_ip>/<configver>/save, which flows unsanitized into an os.system() call wrapping dos2unix. No public exploit identified at time of analysis, but the GHSA advisory is published and no vendor patch exists, leaving exposed instances at immediate risk of full compromise of the management interface host.

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CVE-2026-45564 vulnerability details – vuln.today

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