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CVE-2026-47244 is an uncontrolled resource-consumption vulnerability in Netty's HTTP/2 codec. Before Netty 4.1.135.Final and 4.2.15.Final, DefaultHttp2Connection.DefaultEndpoint initializes its stream limits to Integer.MAX_VALUE, while Http2Settings does not advertise SETTINGS_MAX_CONCURRENT_STREAMS unless the application explicitly configures a value. Consequently, affected HTTP/2 servers neither advertise nor locally enforce a practical concurrent-stream limit by default. A client can retain large numbers of streams on one TCP connection, causing accumulation of per-stream objects, property-map state, flow-control state, and stream-map entries. The absent cap also increases backend work available to HTTP/2 Rapid Reset-style abuse.
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No valid public exploits. Mallory filtered out 1 candidate as fakes, detection scripts, or README-only repos.
All candidate exploits were filtered out by Mallory's validation.
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Vendor-confirmed product mapping. Mallory continuously reconciles this list against your asset inventory.
27 sources tracked across advisories, community write-ups, and news. New activity surfaces here as Mallory finds it.
A Netty HTTP/2 vulnerability that can cause denial of service via uncontrolled concurrent streams.
A Netty HTTP/2 resource exhaustion vulnerability allowing denial of service via excessive streams on a single TCP connection when no concurrent stream limit is configured.
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.