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CVE-2026-63202 is an unauthenticated denial-of-service vulnerability in the Binary HTTP and Oblivious HTTP codec components of Netty Incubator. Malformed field-section input can cause the BinaryHttpParser field-section decoding logic to make no parsing progress while continuing its loop. This permits a crafted Binary HTTP message to pin a Netty event-loop thread in an infinite loop at full CPU utilization. The weakness is associated with CWE-835 (Infinite Loop) and CWE-400 (Uncontrolled Resource Consumption).
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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.
Products and vendors Mallory has correlated with this vulnerability. Open in Mallory to drill down to specific CPE configurations and version ranges.
Vendor-confirmed product mapping. Mallory continuously reconciles this list against your asset inventory.
1 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.