CVE-2026-31935
Suricata http2: unbounded resource consumption
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.
INFO
Published Date :
April 2, 2026, 3:16 p.m.
Last Modified :
April 7, 2026, 9:20 p.m.
Remotely Exploit :
Yes !
Source :
[email protected]
CVSS Scores
| Score | Version | Severity | Vector | Exploitability Score | Impact Score | Source |
|---|---|---|---|---|---|---|
| CVSS 3.1 | HIGH | [email protected] |
Solution
- Update Suricata to version 7.0.15 or later.
- Update Suricata to version 8.0.4 or later.
- Ensure proper handling of HTTP2 continuation frames.
References to Advisories, Solutions, and Tools
Here, you will find a curated list of external links that provide in-depth
information, practical solutions, and valuable tools related to
CVE-2026-31935.
| URL | Resource |
|---|---|
| https://github.com/OISF/suricata/security/advisories/GHSA-vxrp-5pg7-7v4x | Vendor Advisory |
| https://redmine.openinfosecfoundation.org/issues/8289 | Issue Tracking Permissions Required |
CWE - Common Weakness Enumeration
While CVE identifies
specific instances of vulnerabilities, CWE categorizes the common flaws or
weaknesses that can lead to vulnerabilities. CVE-2026-31935 is
associated with the following CWEs:
Common Attack Pattern Enumeration and Classification (CAPEC)
Common Attack Pattern Enumeration and Classification
(CAPEC)
stores attack patterns, which are descriptions of the common attributes and
approaches employed by adversaries to exploit the CVE-2026-31935
weaknesses.
We scan GitHub repositories to detect new proof-of-concept exploits. Following list is a collection of public exploits and proof-of-concepts, which have been published on GitHub (sorted by the most recently updated).
Results are limited to the first 15 repositories due to potential performance issues.
The following list is the news that have been mention
CVE-2026-31935 vulnerability anywhere in the article.
The following table lists the changes that have been made to the
CVE-2026-31935 vulnerability over time.
Vulnerability history details can be useful for understanding the evolution of a vulnerability, and for identifying the most recent changes that may impact the vulnerability's severity, exploitability, or other characteristics.
-
Initial Analysis by [email protected]
Apr. 07, 2026
Action Type Old Value New Value Added CPE Configuration OR *cpe:2.3:a:oisf:suricata:*:*:*:*:*:*:*:* versions up to (excluding) 7.0.15 *cpe:2.3:a:oisf:suricata:*:*:*:*:*:*:*:* versions from (including) 8.0.0 up to (excluding) 8.0.4 Added Reference Type GitHub, Inc.: https://github.com/OISF/suricata/security/advisories/GHSA-vxrp-5pg7-7v4x Types: Vendor Advisory Added Reference Type GitHub, Inc.: https://redmine.openinfosecfoundation.org/issues/8289 Types: Issue Tracking, Permissions Required -
New CVE Received by [email protected]
Apr. 02, 2026
Action Type Old Value New Value Added 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. Added CVSS V3.1 AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H Added CWE CWE-400 Added CWE CWE-770 Added Reference https://github.com/OISF/suricata/security/advisories/GHSA-vxrp-5pg7-7v4x Added Reference https://redmine.openinfosecfoundation.org/issues/8289