OISF Suricata up to 7.0.13/8.0.2 stack-based overflow

Summaryinfo

A vulnerability classified as critical has been found in OISF Suricata up to 7.0.13/8.0.2. This issue affects some unknown processing. Performing a manipulation results in stack-based overflow. This vulnerability was named CVE-2026-22262. The attack may be initiated remotely. There is no available exploit. It is recommended to upgrade the affected component.

Detailsinfo

A vulnerability, which was classified as critical, was found in OISF Suricata up to 7.0.13/8.0.2. This affects some unknown processing. The manipulation with an unknown input leads to a stack-based overflow vulnerability. CWE is classifying the issue as CWE-121. A stack-based buffer overflow condition is a condition where the buffer being overwritten is allocated on the stack (i.e., is a local variable or, rarely, a parameter to a function). This is going to have an impact on confidentiality, integrity, and availability. The summary by CVE is:

Suricata is a network IDS, IPS and NSM engine. While saving a dataset a stack buffer is used to prepare the data. Prior to versions 8.0.3 and 7.0.14, if the data in the dataset is too large, this can result in a stack overflow. Versions 8.0.3 and 7.0.14 contain a patch. As a workaround, do not use rules with datasets `save` nor `state` options.

It is possible to read the advisory at github.com. This vulnerability is uniquely identified as CVE-2026-22262 since 01/07/2026. The exploitability is told to be difficult. It is possible to initiate the attack remotely. No form of authentication is needed for exploitation. The technical details are unknown and an exploit is not publicly available.

The vulnerability scanner Nessus provides a plugin with the ID 296936 (Linux Distros Unpatched Vulnerability : CVE-2026-22262), which helps to determine the existence of the flaw in a target environment.

Upgrading to version 7.0.14 or 8.0.3 eliminates this vulnerability. Applying the patch 0eff24213763c2aa2bb0957901d5dc1e18414dbf is able to eliminate this problem. The bugfix is ready for download at github.com. The best possible mitigation is suggested to be upgrading to the latest version.

The vulnerability is also documented in the vulnerability database at Tenable (296936). Statistical analysis made it clear that VulDB provides the best quality for vulnerability data.

Productinfo

Vendor

• OISF

Name

• Suricata

Version

• 7.0.0
• 7.0.1
• 7.0.2
• 7.0.3
• 7.0.4
• 7.0.5
• 7.0.6
• 7.0.7
• 7.0.8
• 7.0.9
• 7.0.10
• 7.0.11
• 7.0.12
• 7.0.13
• 8.0.0
• 8.0.1
• 8.0.2

License

• open-source

Website

• Product: https://github.com/OISF/suricata/

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Statistical analysis made it clear that VulDB provides the best quality for vulnerability data.

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