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CVE-2026-79920— Ajenti: Privilege escalation to root via unauthenticated/unauthorized plugin install task

Quick assessment

Affected
ajenti ajenti
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.

Ajenti is a Linux & BSD modular server admin panel. Prior to version 2.2.16, any authenticated user can call /api/core/tasks/start to enqueue InstallPlugin, UnInstallPlugin, or UpgradeAll from plugins/plugins/tasks.py without plugin-management authorization. I

CVSS 9.9 · Critical EPSS 0.36% · P30

Affected Version Matrix 1

VendorProduct Version RangeStatus
ajenti ajenti < 2.2.16 affected
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I. Basic Information for CVE-2026-79920

Vulnerability Information

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Vulnerability Title
Ajenti: Privilege escalation to root via unauthenticated/unauthorized plugin install task
Source: CVE Program / CVE List V5
Vulnerability Description
Ajenti is a Linux & BSD modular server admin panel. Prior to version 2.2.16, any authenticated user can call /api/core/tasks/start to enqueue InstallPlugin, UnInstallPlugin, or UpgradeAll from plugins/plugins/tasks.py without plugin-management authorization. InstallPlugin and UnInstallPlugin construct a pip package specification from unvalidated name and version fields, and the task worker invokes pip while running as root. A low-privileged user can therefore select or manipulate a package installed with root privileges and can install, remove, or upgrade plugins without administrative permission, resulting in root code execution and full host compromise. This issue is fixed in version 2.2.16.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H
Source: CVE Program / CVE List V5
Vulnerability Type
授权机制缺失
Source: CVE Program / CVE List V5

Affected Products

Vendor Product Affected Versions CPE Subscribe
ajenti ajenti < 2.2.16 -

II. Public POCs for CVE-2026-79920

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III. Intelligence Information for CVE-2026-79920

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Patches & Fixes for CVE-2026-79920 (2)

Other References for CVE-2026-79920 (1)

IV. Related Vulnerabilities

Same product: ajenti
Same vendor: ajenti
Same weakness: CWE-862

V. Comments for CVE-2026-79920

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