CVE-2026-42194 Incomplete fix for CVE-2026-32812: SSRF in admidio
An incomplete SSRF fix in Admidio allows attackers to bypass IP validation via DNS rebinding, potentially accessing internal network resources.
- Exploited in the wild
- Not known
- Login needed
- An administrator
- Attackable
- Over the internet
- Victim action needed
- Not needed
- Fix
- Available
What is CVE-2026-42194?
CVE-2026-42194 is a medium-severity server-side request forgery vulnerability in admidio, published on 7 May 2026. An attacker needs administrator access to exploit it, with no action from the victim.
Official 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: CWE-918
Which versions are affected by CVE-2026-42194?
2 open source packages ship an affected version, including admidio/admidio.
| Package | Affected | Fixed in |
|---|---|---|
admidio/admidio Packagist | All versions | 5.0.9 |
admidio/admidio Packagist | All versions | 5.0.9 |
How do I fix CVE-2026-42194?
Upgrade admidio/admidio to 5.0.9 or later.
Upgrade, and send outbound requests through an allow-list that blocks internal addresses. More about Server-side request forgery.
Is CVE-2026-42194 being exploited?
It is not confirmed as exploited in the wild, but public exploit code for CVE-2026-42194 exists.
Sources
Also known as GHSA-hcjj-chvw-fmw9.