CVE-2026-33075: critical vulnerability in labring FastGPT
FastGPT has Arbitrary Code Execution in GitHub Actions via pull_request_target in fastgpt-preview-image.yml
Published
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28Vexday Risk Score
No sign of exploitation. No public exploitation artifact known so far.
ssvc Trackcvss 9.4epss 0.3%
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: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
labring · FastGPTRelated CVEs — labring FastGPT
In the same product, most dangerous first.
CVE-2026-42302CRITICALFastGPT: Unauthenticated Remote Code Execution (RCE) via code-server Misconfiguration in agent-sandboxEPSS 0.7%CVE-2026-40351CRITICALFastGPT: NoSQL Injection in loginByPassword leads to Authentication BypassEPSS 0.6%CVE-2025-49131MEDIUMFastGPT Sandbox Vulnerable to Sandbox BypassEPSS 0.5%CVE-2026-55418HIGHFastGPT: S3 presign/read handlers do not bind the object key to the caller's team (cross-team file disclosure)EPSS 0.5%CVE-2026-68929CRITICALFastGPT: Unauthenticated WeChat channel hijack and denial of service via shareId-only authorizationEPSS 0.4%CVE-2026-34162CRITICALFastGPT: Unauthenticated SSRF via httpTools Endpoint Leads to Internal API Key TheftEPSS 0.4%