CVE-2026-94588Network attack vectorHinoki check available

Data read and modification via apt-get argument injection

Published Sep 21, 2026 · Updated Sep 21, 2026

Argument injection in Proxmox pmg-api 9.0.0 through 9.0.2 allows remote authenticated users to alter an apt-get changelog command. The package changelog API accepted a user-controlled package name without rejecting odd names or placing an end-of-options separator before it. A privileged session is required, but a CSRF-style request can supply the crafted value and expose or modify data through injected apt-get options.

CVSS severity4.4
Medium
EPSS probability0.25%
Next 30 days · Oct 19, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkAvailable
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Summary

What happened

Argument injection in Proxmox pmg-api 9.0.0 through 9.0.2 allows remote authenticated users to alter an apt-get changelog command. The package changelog API accepted a user-controlled package name without rejecting odd names or placing an end-of-options separator before it. A privileged session is required, but a CSRF-style request can supply the crafted value and expose or modify data through injected apt-get options.

The record

CVE
CVE-2026-94588
Published
Sep 21, 2026
Updated
Sep 21, 2026
Vendor
Proxmox Server Solutions GmbH
Product
pmg-api
Classifications
CWE-88, CWE-352, T1190
Attack vector
network
Privileges
authenticated

Timeline

How it unfolded

  1. Sep 21, 2026CVE publishedPublication date reported by the CVE source.
  2. Sep 21, 2026Record updatedLatest update available in the CVE record.

Exploitability

Present is not the same as exploitable

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Is a vulnerable build present?

Compare these published version ranges with your installed build and any vendor patches.

  1. Affected versionversion=9.0.0 <9.0.3

What conditions does exploitation require?

Attack vectornetwork
Required privilegesauthenticated

What is affected?

Proxmox Server Solutions GmbH · pmg-apiversion=9.0.0 <9.0.3

Published CVSS scores

4.4MITRECVSS:3.1/AV:N/AC:H/PR:H/UI:N/S:C/C:L/I:L/A:N

CVSS describes severity. EPSS estimates exploitation probability.

Attacks

What attackers are doing with it

Daily unique IPs observed by Shadowserver honeypots for known exploited vulnerabilities (KEVs). Missing observations do not establish an absence of attacks.

Activity data is delayed. The latest report is Sep 28, 2026.

Daily unique IPsNo honeypot observations are available for this CVE in the selected window.

No observations available

Sep 22, 2026Sep 28, 2026
Latest reporting daySep 28, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectornetwork
Privilegesauthenticated
Known exploitationUnconfirmed
Public exploitUnconfirmed

Weakness, pattern, technique

CWE-88Improper Neutralization of Argument Delimiters in a Command ('Argument Injection')
CWE-352Cross-Site Request Forgery (CSRF)
T1190Exploit Public-Facing Application

Public exploit references

No public exploit references are available in this record.

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Technologies

Your stack

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Your stack

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