Vulnerability details
CVE-2026-33075
labring FastGPT
FastGPT has Arbitrary Code Execution in GitHub Actions via pull_request_target in fastgpt-preview-image.yml
CVSS 4.0
9.4Critical
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.
CVSS scores
| Score | Version | Source | Vector |
|---|---|---|---|
| 9.4Critical | 4.0 | CVEProject cvelistV5 (CNA) (GitHub_M) | CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:H/SC:H/SI:H/SA:H |
Affected products
| Vendor | Product | Versions | Source |
|---|---|---|---|
| labring | FastGPT | <= 4.14.8.3 | CVEProject cvelistV5 (CNA) |
References and advisories
1- https://github.com/labring/FastGPT/security/advisories/GHSA-xfx8-w35j-485c x_refsource_CONFIRM
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Details
- Published
- 2026-03-20
- Last updated
- 2026-03-20
- State
- Published
- Assigner (CNA)
- GitHub_M
Exploit prediction (EPSS)
0.3%
Probability of exploitation in 30 days
23.8%
Percentile (among all CVEs)
SSVC assessment (CISA)
- Automatable
- Yes
- Exploitation
- None
- Technical impact
- Total
Weaknesses (CWE)
- CWE-494Download of Code Without Integrity Check
- CWE-829Inclusion of Functionality from Untrusted Control Sphere