VULNERABILITY INTELLIGENCE
CVE-2026-42194
CVSS score6.8 MEDIUM
EPSS probability0.24%
CISA KEVNot currently listed
Published2026-05-07
Last modified2026-06-17
CVSS vectorCVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:C/C:H/I:N/A:N
Description
Admidio is an open-source user management solution. Prior to version 5.0.9, the incomplete SSRF fix in Admidio's fetch_metadata.php validates the resolved IP address but passes the original hostname-based URL to curl_init(), leaving a DNS rebinding TOCTOU window that allows redirecting requests to internal IPs. This issue has been patched in version 5.0.9.
Weakness classification
- security-advisories@github.com: CWE-918