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Suricata http2: decompression bomb can cause denial of service in Suricata

CVSS 3.1 7.5 HIGHCheck source for fixed versionsKEV status unknown

cve-program · CVE-2026-46387

Published

Suricata is a network Intrusion Detection System, Intrusion Prevention System and Network Security Monitoring engine. Prior to versions 7.0.16 and 8.0.5, Suricata's HTTP/2 decompression path could grow the decompressed response-body buffer without an effective upper bound. A crafted HTTP/2 DATA payload using a high compression ratio, such as gzip, deflate, or brotli compressed data, could cause Suricata to allocate excessive memory while decompressing the payload. Versions 7.0.16 and 8.0.5 contain a fix. As a workaround, disable HTTP2.

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CVE-2026-46387 · CVE overview and exploitation status

cve-program · CVE-2026-46387

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Sources read 15 Nov 02:45 UTC · 256 of 275 readable · 254 fully read · documentation 428/469 current