CVE-2026-50131

CVE-2026-50131 Fedify incomplete SSRF mitigation after GHSA-p9cg-vqcc-grcx: validatePublicUrl allowed special-use IPv4 ranges. Primary advisory: GHSA-xw9q-2mv6-9fr8 Official CVE record: CVE-2026-50131 Researcher credit: @chaitanyagarware At a Glance Field| Value ---|--- CVE| CVE-2026-50131 GHSA|...

CVE-2026-50131

Fedify is a TypeScript library for building federated server apps powered by ActivityPub. Fedify previously addressed SSRF/internal network access in GHSA-p9cg-vqcc-grcx by adding public URL validation before runtime document and media fetching. However, the IPv4 validation logic present starting...

CVE-2026-50131: Server-Side Request Forgery (SSRF)

Fedify is a TypeScript library for building federated server apps powered by ActivityPub. Fedify previously addressed SSRF/internal network access in GHSA-p9cg-vqcc-grcx by adding public URL validation before runtime document and media fetching. However, the IPv4 validation logic present starting...