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CVE-2026-31935

Suricata http2: unbounded resource consumption

Published: Apr 2, 2026Updated: Apr 7, 2026 Sources: CVE List NVD BDUCWE-400
NVD MITRE
7.5CVSSHIGH
EPSS Score
0.3%
Top 81.3%
CISA KEV
Not in KEV
Exploits
No Known Exploits
Remediation
Patch Available

Description

Suricata is a network IDS, IPS and NSM engine. Prior to versions 7.0.15 and 8.0.4, flooding of craft HTTP2 continuation frames can lead to memory exhaustion, usually resulting in the Suricata process being shut down by the operating system. This issue has been patched in versions 7.0.15 and 8.0.4.

CVSS Vector Breakdown

AV:NAC:LPR:NUI:NS:UC:NI:NA:H
Exploitability
AV:NAttack Vector
Network
AC:LAttack Complexity
Low
PR:NPrivileges Required
None
UI:NUser Interaction
None
Scope
S:UScope
Unchanged
Impact
C:NConfidentiality
None
I:NIntegrity
None
A:HAvailability
High
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Weaknesses

CWE-400CWE-770

Affected Products

SuricataOpen Information Security Foundation
On-prem
Security Products / vuln-mgmt-scanner
suricataoisf
On-premNetwork Device
Networking Infrastructure / firewall
suricataOISF
On-premNetwork Device
Networking Infrastructure / firewall
open information security foundationoss-projectSecurity Productsaka ofis, suricata, libhtp
oisfoss-projectNetworking Infrastructureaka suricata, libhtp, suricata-update

Attack Graph

Products CVE Techniques Tactics

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Exploitability

Official Patch Available

MITRE ATT&CK

1 technique
Impact
View detailed technique mapping

References

https://github.com/OISF/suricata/security/advisories/GHSA-vxrp-5pg7-7v4x
github.com
https://redmine.openinfosecfoundation.org/issues/8289
redmine.openinfosecfoundation.org

Timeline

Published
Apr 2, 2026
Last Updated
Apr 7, 2026

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