Gomatrixserverlib Server-Side Request Forgery (SSRF) on redirects and federation

Exploitation

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

CVSS

4.3 · CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:N

EPSS

• CVE-2024-52594: 0.35% estimated exploitation activity in the next 30 days; percentile 29.14 (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.

Impact Gomatrixserverlib is vulnerable to server-side request forgery, serving content from a private network it can access, under certain conditions. Patches c4f1e01eab0dd435709ad15463ed38a079ad6128 fixes this issue. Workarounds Use a local firewall to limit the network segments and hosts the service using gomatrixserverlib can access. References N/A

Published by the source

16 Jan 2025, 23:08 UTC

Last modified by the source

17 Jan 2025, 15:41 UTC

Source last checked

26 Oct 2026, 15:08 UTC

1. Revision 1 · created · 26 Oct 2026

   Published from ghsa record GHSA-4ff6-858j-r822

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# Patch Next advisory brief: CVE-2024-52594

Advisory: Gomatrixserverlib Server-Side Request Forgery (SSRF) on redirects and federation
IDs: CVE-2024-52594, GHSA-4ff6-858j-r822
Record: https://patchnext.com/advisories/cve-2024-52594 (revision 1, source checked 26 Oct 2026, 15:08 UTC)
Inventory: none attached. This brief comes from a public page and does not say whether any deployment is affected.
Severity: Medium (CVSS 4.3)
Exploitation: no confirmed exploitation recorded. Patch Next confirms exploitation only from CISA KEV.
Vendor response: Vendor fix available; fixed versions by package: github.com/matrix-org/gomatrixserverlib 0.0.0-20250116181547-c4f1e01eab0d. A vendor fix does not mean a deployment is fixed.

## Affected components
- Go github.com/matrix-org/gomatrixserverlib: affected <= 0.0.0-20250106190028-bf86bc98b879; fixed in 0.0.0-20250116181547-c4f1e01eab0d

## Suggested inspection (read-only)
- Go github.com/matrix-org/gomatrixserverlib: 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 github.com/matrix-org/gomatrixserverlib.
- 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-4ff6-858j-r822 (GitHub-reviewed advisory GHSA-4ff6-858j-r822 lists affected ranges: Go github.com/matrix-org/gomatrixserverlib >=0 <=0.0.0-20250106190028-bf86bc98b879)

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