Loading vulnerability…
CVE-2026-62857 is a server-side request forgery vulnerability in Fedify, a TypeScript library for building federated ActivityPub server applications. The flaw affects getNodeInfo() and Context.lookupNodeInfo(), which retrieve a NodeInfo document URL advertised through a remote server's /.well-known/nodeinfo response. In affected versions, the implementation follows an attacker-controlled links[].href value without validating the URL scheme, redirect chain, or whether the destination resolves to a public address. As a result, a malicious remote server can cause the application to issue requests to non-public targets such as loopback, link-local, cloud metadata, and private-network services, and return the fetched response bodies to the caller. Affected versions include 1.2.0 and later releases in the vulnerable 1.9, 1.10, 2.0, 2.1, 2.2, and 2.3 maintenance lines prior to the vendor fixes.
Mallory correlates every CVE against your assets, your vendors, and active adversary campaigns. Know which vulnerabilities matter for you, not just which ones are loud.
What it means. What to do now. Patch path, mitigations, and the assume-compromise checklist.
What an attacker gets, and what they’ve been doing with it.
If you can’t patch tonight, do this now.
Patch, then assume compromise.
No public exploits tracked yet. Mallory keeps watching.
No public exploit code observed for this vulnerability.
7 sources tracked across advisories, community write-ups, and news. New activity surfaces here as Mallory finds it.
Query your assets running an affected version, and investigate the blast radius.
Every observed campaign linking this CVE to a named adversary.
Malware families riding this exploit, with evidence and IOCs.
YARA, Sigma, Snort, and vendor rules, auto-deployed to your SIEM.
Cross-references every affected SKU, including bundled OEM variants.
Community discussion across Reddit, Mastodon, and other social sources.