What’s Vulnerable › Vulnerabilities

CVE-2026-90767: Froxlor before 2.3.12 SSH Key Injection via authorized_keys

• Severity: medium (CVSS 6.5 v3.1)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 0.4% probability of exploitation in the next 30 days
• Public exploit or detection template: none known
• Published: 2026-09-13 · updated 2026-09-23
• Weakness: CWE-93

Description

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.

Affected products

• froxlor: before 2.3.12 — fixed in 2.3.12

How to fix

Upgrade to a fixed version: froxlor 2.3.12. Check the vendor advisory for mitigations.

References

• https://github.com/froxlor/Froxlor
• https://github.com/froxlor/Froxlor/blob/2.3.10/lib/Froxlor/Api/Commands/SshKeys.php
• https://github.com/froxlor/Froxlor/blob/2.3.10/lib/Froxlor/Cron/System/SshKeys.php
• https://github.com/froxlor/Froxlor/security/advisories/GHSA-p3v3-74gc-jh5f
• https://www.vulncheck.com/advisories/froxlor-before-2.3.12-ssh-key-injection-via-authorized-keys
• https://github.com/froxlor/Froxlor/security/advisories/GHSA-p3v3-74gc-jh5f

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