Medium severity · published Sep 13, 2026
CVE-2026-90767
Froxlor before 2.3.12 SSH Key Injection via authorized_keys
6.5
CVSS
0.4%
EPSS
No
On KEV
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.
CVSS vector
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:H/A:N
Attack vector
Network
Complexity
Low
Privileges
Low
User interaction
None
Confidentiality
None
Integrity
High
Availability
None
Scope
Unchanged
Exploitation
Is it being used?
Exploit prediction (EPSS)0.4% · higher than 38% of CVEs
Exploited in the wildNo evidence yet
CISA KEVNot listed
Ransomware campaign useNot known
Affected products
Which versions
FR
Froxlor · froxlor
before 2.3.12 · source: vendor
References
NVD
https://nvd.nist.gov/vuln/detail/CVE-2026-90767
CVE.org
https://www.cve.org/CVERecord?id=CVE-2026-90767
github.com
https://github.com/froxlor/Froxlor
github.com
https://github.com/froxlor/Froxlor/blob/2.3.10/lib/Froxlor/Api/Commands/SshKeys.php
github.com
https://github.com/froxlor/Froxlor/blob/2.3.10/lib/Froxlor/Cron/System/SshKeys.php
github.com
https://github.com/froxlor/Froxlor/security/advisories/GHSA-p3v3-74gc-jh5f
www.vulncheck.com
https://www.vulncheck.com/advisories/froxlor-before-2.3.12-ssh-key-injection-via-authorized-keys
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