Vulnerability in Froxlor
CVE-2026-90767
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.
Vulnerability class: CRLF Injection
Published · last modified .
CVSS v3 metric
CVSS v3 base score 6.5 (Medium). Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:H/A:N.
EPSS exploit prediction
EPSS: 0.004 (37.6th percentile), scored .
Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 38th percentile — 37.6% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.004 · newest: 0.004 · change: 0.000
Affected products
Weakness classification (CWE)
References
- github.com/froxlor/Froxlor/security/advisories/GHSA-p3v3-74gc-jh5f (vendor-advisory, third-party-advisory)
- github.com/froxlor/Froxlor/blob/2.3.10/lib/Froxlor/Api/Commands/SshKeys.php (technical-description)
- github.com/froxlor/Froxlor/blob/2.3.10/lib/Froxlor/Cron/System/SshKeys.php (technical-description)
- github.com/froxlor/Froxlor (product)
- www.vulncheck.com/advisories/froxlor-before-2.3.12-ssh-key-injection-via-author… (third-party-advisory)
Frequently asked questions
- What is CVE-2026-90767?
- CVE-2026-90767 is a medium-severity vulnerability in Froxlor, classified under CRLF Injection. CVSS score: 6.5/10. Published 2026-09-13.
- How severe is CVE-2026-90767?
- Medium severity. CVSS v3 base score is 6.5 out of 10.