CVE-2026-42194

6.8 mediumEPSS 0.2%

Medium (6.8). EPSS 0.2% chance of exploitation in the next 30 days.

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.

Severity

CVSS 3.1

6.8 medium

CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:C/C:H/I:N/A:N

EPSS: 0.2% chance of exploitation in the next 30 days; higher than 14% of CVEs (scores of 2026-10-31)
CWE: CWE-918
Published: 2026-05-07
Modified: 2026-06-17
Record from: the NVD, synced 2026-10-19

References

https://github.com/Admidio/admidio/releases/tag/v5.0.9
https://github.com/Admidio/admidio/security/advisories/GHSA-hcjj-chvw-fmw9
https://github.com/Admidio/admidio/security/advisories/GHSA-hcjj-chvw-fmw9

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