Admidio has an incomplete fix for CVE-2026-32812 (SSRF)

Exploitation

No confirmed exploitation recorded. Patch Next marks exploitation only from CISA KEV.

CVSS

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

EPSS

• CVE-2026-42194: 0.24% estimated exploitation activity in the next 30 days; percentile 14.62 (FIRST EPSS, 2026-11-03). This is a model estimate, not proof of exploitation or customer exposure.

As published by the source; long descriptions are shortened.

Summary The incomplete SSRF fix in Admidio's fetchmetadata.php validates the resolved IP address but passes the original hostname-based URL to curlinit(), leaving a DNS rebinding TOCTOU window that allows redirecting requests to internal IPs. Affected Package - Ecosystem: Other - Package: admidio - Affected versions: < commit f6b7a966abe4d75e9f707d665d7b4b5570e3185a - Patched versions: = commit f6b7a966abe4d75e9f707d665d7b4b5570e3185a Severity Medium CWE CWE-918 — Server-Side Request Forgery (SSRF) Details In modules/sso/fetchmetadata.php (lines 21-49), the SSO metadata fetch validates the URL scheme is HTTPS (line 21), runs filtervar($rawUrl, FILTERVALIDATEURL) (line 27), resolves the hostname via gethostbyname() and checks the IP against private/reserved ranges (lines 34-38), then passes the original URL with the hostname to curlinit($url) at line 41. The fundamental problem is at step 4: cURL resolves the hostname again independently. Between gethostbyname() at step 3 and…

Published by the source

5 May 2026, 20:03 UTC

Last modified by the source

8 May 2026, 20:14 UTC

Source last checked

26 Oct 2026, 14:40 UTC

1. Revision 1 · created · 26 Oct 2026

   Published from ghsa record GHSA-hcjj-chvw-fmw9

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# Patch Next advisory brief: CVE-2026-42194

Advisory: Admidio has an incomplete fix for CVE-2026-32812 (SSRF)
IDs: CVE-2026-42194, GHSA-hcjj-chvw-fmw9
Record: https://patchnext.com/advisories/cve-2026-42194 (revision 1, source checked 26 Oct 2026, 14:40 UTC)
Inventory: none attached. This brief comes from a public page and does not say whether any deployment is affected.
Severity: Medium (CVSS 6.8)
Exploitation: no confirmed exploitation recorded. Patch Next confirms exploitation only from CISA KEV.
Vendor response: Vendor fix available; fixed versions by package: admidio/admidio 5.0.9. A vendor fix does not mean a deployment is fixed.

## Affected components
- Packagist admidio/admidio: affected <= 5.0.8; fixed in 5.0.9

## Suggested inspection (read-only)
- Packagist admidio/admidio: check the installed version with your package manager.

## Supported action
Upgrade each affected component to a fixed version on its release line. For a transitive dependency, upgrade the parent package or add an override or constraint, then regenerate the lockfile. Redeploy every environment that ran an affected version.

## Required regression checks
- Run the test suite and a production build.
- Exercise the features that depend on admidio/admidio.
- Repeat the inspection and confirm that only fixed versions remain installed.

## Rollback considerations
- Keep the previous lockfile and deployment artifact. Rolling back reinstates the vulnerable version, so apply any documented mitigation while you fix forward.

## Unresolved questions
- Which deployments run an affected version?
- Exploitation status can change. Check again before lowering the priority.
- Mark the work resolved only after the fixed version is verified in production.

## Sources
- Verified: https://github.com/advisories/GHSA-hcjj-chvw-fmw9 (GitHub-reviewed advisory GHSA-hcjj-chvw-fmw9 lists affected ranges: Packagist admidio/admidio >=0 <=5.0.8)

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