CVE-2026-33990 Docker Model Runner OCI Registry Client Vulnerable to Server-Side Request Forgery (SSRF)
A malicious OCI registry can trigger Server-Side Request Forgery in Docker Model Runner, allowing attackers to access internal services and exfiltrate data.
- Exploited in the wild
- Not known
- Login needed
- Any signed-in user
- Attackable
- Local or same network only
- Victim action needed
- Not needed
- Fix
- Available
What is CVE-2026-33990?
CVE-2026-33990 is a medium-severity server-side request forgery vulnerability in docker model-runner, published on 1 Apr 2026. It can only be exploited from the same machine or local network, with no action from the victim.
Official description
Docker Model Runner (DMR) is software used to manage, run, and deploy AI models using Docker. Prior to version 1.1.25, Docker Model Runner contains an SSRF vulnerability in its OCI registry token exchange flow. When pulling a model, Model Runner follows the realm URL from the registry's WWW-Authenticate header without validating the scheme, hostname, or IP range. A malicious OCI registry can set the realm to an internal URL (e.g., http://127.0.0.1:3000/), causing Model Runner running on the host to make arbitrary GET requests to internal services and reflect the full response body back to the caller. Additionally, the token exchange mechanism can relay data from internal services back to the attacker-controlled registry via the Authorization: Bearer header. This issue has been patched in version 1.1.25. For Docker Desktop users, enabling Enhanced Container Isolation (ECI) blocks container access to Model Runner, preventing exploitation. However, if the Docker Model Runner is exposed to localhost over TCP in specific configurations, the vulnerability is still exploitable.
Weakness: CWE-918
Which versions are affected by CVE-2026-33990?
3 open source packages ship an affected version, including github.com/docker/model-runner. It affects 1 product.
| Package | Affected | Fixed in |
|---|---|---|
github.com/docker/model-runner Go | All versions | 1.1.25 |
github.com/docker/model-runner Go | All versions | 1.1.25 |
github.com/docker/model-runner Go | All versions | 1.1.25 |
Products include Docker Model Runner.
How do I fix CVE-2026-33990?
Upgrade github.com/docker/model-runner to 1.1.25 or later.
Upgrade, and send outbound requests through an allow-list that blocks internal addresses. More about Server-side request forgery.
Is CVE-2026-33990 being exploited?
There is no known exploitation of CVE-2026-33990 in the wild and no public exploit code.
Sources
Also known as GHSA-x2f5-332j-9xwq, GO-2026-4911, UBUNTU-CVE-2026-33990.