CVE-2026-33075 FastGPT has Arbitrary Code Execution in GitHub Actions via pull_request_target in fastgpt-preview-image.yml
External contributors can execute arbitrary code and steal secrets via a vulnerable GitHub Actions workflow in FastGPT.
- Exploited in the wild
- Not known
- Login needed
- Any signed-in user
- Attackable
- Over the internet
- Victim action needed
- Not needed
- Fix
- None listed
What is CVE-2026-33075?
CVE-2026-33075 is a critical code injection vulnerability in labring FastGPT, published on 20 Mar 2026. Any signed-in user can exploit it over the network, with no action from the victim.
Official description
FastGPT is an AI Agent building platform. In versions 4.14.8.3 and below, the fastgpt-preview-image.yml workflow is vulnerable to arbitrary code execution and secret exfiltration by any external contributor. It uses pull_request_target (which runs with access to repository secrets) but checks out code from the pull request author's fork, then builds and pushes Docker images using attacker-controlled Dockerfiles. This also enables a supply chain attack via the production container registry. A patch was not available at the time of publication.
Which versions are affected by CVE-2026-33075?
It affects 1 product.
Products include Fastgpt Fastgpt.
How do I fix CVE-2026-33075?
No fix has been published for CVE-2026-33075 yet. Limit exposure of the affected software until one is available.
Upgrade, and never evaluate templates, expressions or code built from user input. More about Code injection.
Is CVE-2026-33075 being exploited?
There is no known exploitation of CVE-2026-33075 in the wild and no public exploit code.
Public exploit code: 1 proofs of concept on GitHub.
Other vulnerabilities in labring FastGPT
- CVE-2026-34162 FastGPT: Unauthenticated SSRF via httpTools Endpoint Leads to Internal API Key Theft
- CVE-2026-40351 FastGPT: NoSQL Injection in loginByPassword leads to Authentication Bypass
- CVE-2026-40352 FastGPT: NoSQL Injection in updatePasswordByOld Leads to Account Takeover
- CVE-2026-34163 Server-Side Request Forgery via MCP Tools Endpoint in FastGPT
- CVE-2026-26075 Cross-Site Request Forgery (CSRF) in FastGPT
Sources
Also known as GHSA-xfx8-w35j-485c.