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CVE-2026-63124 is an infinite-loop denial-of-service vulnerability in io.netty.incubator:netty-incubator-codec-bhttp prior to 0.0.23.Final. The Binary HTTP parser can fail to advance or terminate when parsing a known-length field section that ends exactly at a complete field-line boundary. A crafted Binary HTTP input can cause BinaryHttpParser or BinaryHttpDecoder to repeatedly process the boundary condition without making progress. The issue is associated with CWE-835 (loop with unreachable exit condition) 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.
2 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.