CVE-2026-33075

critical · 9.4

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.

9.4

CVSS

0.3%

EPSS (exploit prob.)

23rd

EPSS percentile

2026-03-20

Published

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/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X

Weaknesses

CWE-494CWE-829

Affected products

Vendor	Product	Affected versions
fastgpt	fastgpt	<= 4.14.8.3

Check a specific version with /api/v1/cve/match.

References

https://github.com/labring/FastGPT/security/advisories/GHSA-xfx8-w35j-485c

Query this programmatically:

curl https://evil-db.io/api/v1/cve/CVE-2026-33075