CVE-2026-41236Public exploitNetwork attack vector

Customer-to-root escalation via symlinked authorized_keys path

Published Jun 4, 2026 · Updated Jun 4, 2026

Symlink following in Froxlor 2.3.6 allows remote authenticated users to obtain root SSH access through customer SSH key synchronization. SshKeys::generateFiles appends an attacker-supplied key to a customer-controlled authorized_keys path without resolving or rejecting a symbolic link to root's file. Exploitation requires a shell-enabled customer account, control of its home directory, SSH-key submission access, and execution of the privileged cron task; success grants full host control.

CVSS severity8.8
High
EPSS probability0.37%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
Coverage for this vulnerability

See if you're affected

Explore vulnerability checks for your environment with Hinoki.

Book a demo

Summary

What happened

Symlink following in Froxlor 2.3.6 allows remote authenticated users to obtain root SSH access through customer SSH key synchronization. SshKeys::generateFiles appends an attacker-supplied key to a customer-controlled authorized_keys path without resolving or rejecting a symbolic link to root's file. Exploitation requires a shell-enabled customer account, control of its home directory, SSH-key submission access, and execution of the privileged cron task; success grants full host control.

The record

CVE
CVE-2026-41236
Published
Jun 4, 2026
Updated
Jun 4, 2026
Vendor
Froxlor
Product
Froxlor
Classifications
CWE-59, T1098.004
Attack vector
network
Privileges
authenticated

Timeline

How it unfolded

  1. Jun 4, 2026CVE publishedPublication date reported by the CVE source.
  2. Jun 4, 2026Record updatedLatest update available in the CVE record.

Exploitability

Present is not the same as exploitable

Compare your product and version with the public record. A matching version still requires validation against your environment.

Is a vulnerable build present?

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

  1. Affected versionversion== 2.3.6

What conditions does exploitation require?

Attack vectornetwork
Required privilegesauthenticated

What is affected?

Froxlor · Froxlorversion== 2.3.6

Published CVSS scores

8.8GitHubCVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

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.

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

No observations available

Sep 9, 2026Sep 15, 2026
Latest reporting daySep 15, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectornetwork
Privilegesauthenticated
Known exploitationUnconfirmed
Public exploitPublished

Weakness, pattern, technique

CWE-59Improper Link Resolution Before File Access ('Link Following')
T1098.004Account Manipulation: SSH Authorized Keys

Public exploit references

Labels summarize the accepted research assessment. They do not indicate a test against your environment.

Technologies

Your stack

See the directory against your own environment.

Your stack

Check the software in your environment

Book a demo to see how Hinoki identifies affected software and validates exploitability in your environment.

Book a demo