# CVE-2026-22166: GPU DDK - Write UAF in KEGLGetPoolBuffers, WebGL reachable

> A write use-after-free in the GPU driver allows attackers to execute code or escalate privileges via malicious WebGPU content.

- **Severity:** High 8.1 (`CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:H/A:H`)
- **Exploited in the wild:** Not known
- **Login needed:** Any signed-in user
- **Attackable:** Over the internet
- **Victim action needed:** Not needed
- **Fix available:** Yes
- **Published:** 1 May 2026
- **Updated:** 1 May 2026
- **Also known as:** A-492082695, ASB-A-492082695, GHSA-7xjg-gxff-2m4m

## What is CVE-2026-22166?

CVE-2026-22166 is a high-severity use after free vulnerability in Imagination Technologies Graphics DDK, published on 1 May 2026. Any signed-in user can exploit it over the network, with no action from the victim.

### Official description

A web page that contains unusual WebGPU content loaded into the GPU GLES render process and can trigger write UAF crash in the GPU GLES user-space shared library. On certain platforms, when the process executing graphics workload has system privileges this could enable subsequent exploit on the system.

Weakness: CWE-416 (Use After Free)

## Which versions are affected by CVE-2026-22166?

It affects 1 product.


Products: Imaginationtech Ddk.

## How do I fix CVE-2026-22166?

Apply the vendor's patch.

## Is CVE-2026-22166 being exploited?

There is no known exploitation of CVE-2026-22166 in the wild and no public exploit code.

## Other vulnerabilities in Imagination Technologies Graphics DDK

- [CVE-2026-16280](https://insights.sbomify.com/CVE-2026-16280/): GPU DDK - Integer overflow in _PMRLogicalOffsetToPhysicalOffset (critical 9.8)
- [CVE-2025-13952](https://insights.sbomify.com/CVE-2025-13952/): GPU DDK - libusc UAF via WebGPU shaders at MergeConsecutiveBarriersBP (critical 9.8)
- [CVE-2026-21732](https://insights.sbomify.com/CVE-2026-21732/): GPU DDK - libusc OOB write at ConvertSwitchToArrayLookupBP during WebGPU shader compilation (critical 9.6)
- [CVE-2025-25176](https://insights.sbomify.com/CVE-2025-25176/): GPU DDK - GPU Register value contents leaked from secure workloads to non-secure world (critical 9.1)
- [CVE-2025-58411](https://insights.sbomify.com/CVE-2025-58411/): GPU DDK - Reservation::psMappedPMR can change while used by a freelist -> UAF (high 8.8)

## Fix prompt for AI coding agents

```text
Check this codebase for CVE-2026-22166 and fix it if it is affected.

What it is: CVE-2026-22166 is a high-severity use after free vulnerability in Imagination Technologies Graphics DDK, published on 1 May 2026. Any signed-in user can exploit it over the network, with no action from the victim.
Exploitation: There is no known exploitation of CVE-2026-22166 in the wild and no public exploit code.

Affected product: Imagination Technologies Graphics DDK. 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-2026-22166/ (Markdown: https://insights.sbomify.com/CVE-2026-22166/index.md)
```

## Sources

- CVE record: https://www.cve.org/CVERecord?id=CVE-2026-22166
- NVD: https://nvd.nist.gov/vuln/detail/CVE-2026-22166
- OSV: https://osv.dev/vulnerability/CVE-2026-22166

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From sbomify Insights: https://insights.sbomify.com/CVE-2026-22166/
Summaries are generated and may contain mistakes; the official description above is the record.