CVE-2026-54454 OpenCATS - Remote Code Execution

OpenCATS < 0.10.0 contains a remote code execution caused by improper handling of uploaded files in ImportUI.php, letting authenticated users with Import privileges execute arbitrary PHP code via web-accessible temporary directory, exploit requires Import privileges.

CVSS base score 9.1 /10
Critical
CISA KEV
Not listed
Public exploit
None known
Authentication
Required
EPSS
0.40% chance of exploitation in 30 days
View the NVD record ↗

Details

Type
Remote Code Execution
Impact
Remote Code Execution, Information Disclosure, Data Tampering
CVSS vector
CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:C/C:H/I:H/A:H
Published
13 October 2026
Updated
15 October 2026
Weakness
CWE-434

Vendor fix

Upgrade to version 0.10.0 or later.

Patching closes this CVE. It does not tell you which of your systems run the affected version, or what else is exposed alongside them.

References

← All CVEs