CVE-2026-46387Suricata http2: decompression bomb can cause denial of service in Suricata
Updated under an hour ago ()
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It affects OISF suricata. Add what you run to find out whether that includes you.
No exploitation reported and no EPSS estimate yet.
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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.
- CVSS
- 7.5 HIGH (v3.1, CNA)CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
- Weakness (CWE)
- CWE-409
- Known exploited
- Not in CISA's KEV catalog
- EPSS (exploitation in the next 30 days)
- Not loaded for this CVE
- Assigned by
- GitHub_M
- NVD analysis
- Analyzed
- Record last updated
- Sep 10, 2026
- First seen by InfoSec Signals
- Oct 9, 2026
Affected products
OISF suricata oisf:suricata (from the name) | before 7.0.16; from 8.0.0, < 8.0.5 | CNA record |
oisf suricata oisf:suricata | before 7.0.16; from 8.0.0 before 8.0.5 | NVD |
References
- https://github.com/OISF/suricata/security/advisories/GHSA-45p7-j5wm-8wrxx-refsource-confirm, mitigation, vendor-advisory
- https://forum.suricata.io/t/suricata-8-0-5-and-7-0-16-released/6315x-refsource-misc, release-notes
- https://redmine.openinfosecfoundation.org/issues/8513x-refsource-misc, permissions-required
The CVE record on cve.org NVD's entry
The CVE record is authoritative. Products marked “from the name” were identified from the CNA's free-text names, not a CPE, and are matched less certainly. This product uses the NVD API but is not endorsed or certified by the NVD.