---
id: CVE-2026-90767
title: >-
  Froxlor before 2.3.12 fails to properly validate multi-line SSH public keys in
  the SshKeys::add() endpoint, allowing customers to inject arbitrary lines into
  authorized_keys files
summary: >-
  Froxlor before 2.3.12 fails to properly validate multi-line SSH public keys in
  the SshKeys::add() endpoint, allowing customers to inject arbitrary lines into
  authorized_keys files. Attackers can inject malicious SSH key entries with
  opti…
severity: medium
cvss: 6.5
cvssVector: 'CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:H/A:N'
cwe:
  - CWE-93
vendor: froxlor
product: Froxlor
affected:
  - Froxlor < 2.3.12
published: '2026-09-13'
updated: '2026-09-23'
sourceUpdated: '2026-09-23T17:17:44.313'
source: NVD
sourceUrl: 'https://nvd.nist.gov/vuln/detail/CVE-2026-90767'
references:
  - url: 'https://github.com/froxlor/Froxlor'
    label: disclosure@vulncheck.com
  - url: >-
      https://github.com/froxlor/Froxlor/blob/2.3.10/lib/Froxlor/Api/Commands/SshKeys.php
    label: disclosure@vulncheck.com
  - url: >-
      https://github.com/froxlor/Froxlor/blob/2.3.10/lib/Froxlor/Cron/System/SshKeys.php
    label: disclosure@vulncheck.com
  - url: 'https://github.com/froxlor/Froxlor/security/advisories/GHSA-p3v3-74gc-jh5f'
    label: disclosure@vulncheck.com
  - url: >-
      https://www.vulncheck.com/advisories/froxlor-before-2.3.12-ssh-key-injection-via-authorized-keys
    label: disclosure@vulncheck.com
  - url: 'https://github.com/froxlor/Froxlor/security/advisories/GHSA-p3v3-74gc-jh5f'
    label: 134c704f-9b21-4f2e-91b3-4a467353bcc0
tags:
  - nvd
  - cve.org
  - exploit-available
epss: 0.00247
epssPercentile: 0.16341
exploitAvailable: true
ssvc:
  exploitation: poc
  automatable: 'no'
  technicalImpact: partial
  timestamp: '2026-09-14T17:42:09.987337Z'
ingestedAt: '2026-09-14T15:23:07.471Z'
---

## Overview

Froxlor before 2.3.12 fails to properly validate multi-line SSH public keys in the SshKeys::add() endpoint, allowing customers to inject arbitrary lines into authorized_keys files. Attackers can inject malicious SSH key entries with option directives to gain persistent unauthorized access that survives key deletion and SSH access revocation.

## Remediation

Refer to the linked advisories for vendor-supplied fixes and affected version ranges.