# CVE-2026-22262: Suricata datasets: stack overflow when saving a set

> A stack overflow in Suricata's dataset saving mechanism allows attackers to cause denial of service or potentially execute code via large datasets.

- **Severity:** Medium 5.9 (`CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:H`)
- **Exploited in the wild:** Not known
- **Login needed:** Not needed
- **Attackable:** Over the internet
- **Victim action needed:** Not needed
- **Fix available:** Yes
- **Published:** 27 Jan 2026
- **Updated:** 27 Jan 2026
- **Also known as:** DEBIAN-CVE-2026-22262, GHSA-9qg5-2gwh-xp86, UBUNTU-CVE-2026-22262

## What is CVE-2026-22262?

CVE-2026-22262 is a medium-severity memory corruption vulnerability in Oisf Suricata, published on 27 Jan 2026. An attacker can exploit it over the internet without logging in, with no action from the victim.

### Official description

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.

Weakness: CWE-787 (Out-of-bounds Write), CWE-121 (Stack-based Buffer Overflow)

## Which versions are affected by CVE-2026-22262?

It affects 1 product.


Products: Oisf Suricata.

## How do I fix CVE-2026-22262?

Apply the vendor's patch.

## Is CVE-2026-22262 being exploited?

There is no known exploitation of CVE-2026-22262 in the wild and no public exploit code.

## Other vulnerabilities in Oisf Suricata

- [CVE-2023-35853](https://insights.sbomify.com/CVE-2023-35853/): Code injection in n/a (critical 9.8)
- [CVE-2021-37592](https://insights.sbomify.com/CVE-2021-37592/): Other in n/a (critical 9.8)
- [CVE-2018-10244](https://insights.sbomify.com/CVE-2018-10244/): Integer overflow in n/a (critical 9.8)
- [CVE-2026-94083](https://insights.sbomify.com/CVE-2026-94083/): Memory corruption in Suricata (critical 9.4)
- [CVE-2026-94084](https://insights.sbomify.com/CVE-2026-94084/): Use after free in Suricata (critical 9.4)

## Fix prompt for AI coding agents

```text
Check this codebase for CVE-2026-22262 and fix it if it is affected.

What it is: CVE-2026-22262 is a medium-severity memory corruption vulnerability in Oisf Suricata, published on 27 Jan 2026. An attacker can exploit it over the internet without logging in, with no action from the victim.
Exploitation: There is no known exploitation of CVE-2026-22262 in the wild and no public exploit code.

Affected product: Oisf Suricata. No package-level version data is available, so check the vendor advisory linked from the reference page.

Task:
1. Search the dependency manifests and lockfiles (for example package.json, package-lock.json, requirements.txt, poetry.lock, uv.lock, pom.xml, build.gradle, go.mod, Cargo.lock, Gemfile.lock) and any Dockerfiles for the affected packages, including transitive dependencies.
2. If an affected version is in use, upgrade it to the fixed version for its release line with the project's package manager, so the lockfile is regenerated. Prefer the smallest upgrade that fixes it.
3. If there is no fix, or the upgrade would break the build, do not guess: explain the risk and the safest workaround instead.
4. Run the tests and summarise what changed and why.
5. If nothing in the project is affected, say so and change nothing.

Reference: https://insights.sbomify.com/CVE-2026-22262/ (Markdown: https://insights.sbomify.com/CVE-2026-22262/index.md)
```

## Sources

- CVE record: https://www.cve.org/CVERecord?id=CVE-2026-22262
- NVD: https://nvd.nist.gov/vuln/detail/CVE-2026-22262
- OSV: https://osv.dev/vulnerability/CVE-2026-22262

---
From sbomify Insights: https://insights.sbomify.com/CVE-2026-22262/
Summaries are generated and may contain mistakes; the official description above is the record.