CVE-2026-82040
UTMStack < 11.2.16 SSRF via IdentityProviderService
UTMStack UTMStack
CVSS
5.3MediumExploitationNo known exploitationNot in CISA KEV, which does not prove it is unexploitedCISA KEV
Exploit odds (EPSS)0.19%Chance of exploitation activity in the next 30 days, higher than 8% of CVEs. Scored 23 Oct 2026FIRST EPSS
What fixes it
- 11.2.16UTMStackCVE List
A fixed version on one release line is not the upgrade target for every line. Check your exact version and any vendor backports.
Description
UTMStack before 11.2.16 contains a server-side request forgery vulnerability in IdentityProviderService.validateMetadataUrl() that allows authenticated attackers to make the server send requests to arbitrary internal or cloud metadata hosts by supplying a malicious metadata URL to the identity-providers endpoint. Attackers can exploit the POST/PUT /api/identity-providers endpoint with no validation of target host, IP, or scheme to perform internal network port scanning and access cloud instance-metadata services.
Text from CVE List
Affected versions 1
- UTMStackaffected: all versions before 11.2.16CVE List