by Kastro
Paper/Archive/CVE-2026-50562

CVE-2026-50562

labring FastGPT — FastGPT: Untrusted PR artifacts are pushed and deployed by privileged preview workflows

EPSS 0.2%CVSS 9.3
critical.is priorityof 100
30
CVSS 9.3 (CNA)9.3 / 10 × 3027.9Not in CISA KEV+300.0EPSS percentile 11.8.118 × 202.4No public exploit+100.0SSVC exploitation: none+100.0
Description · from the CVE record

FastGPT is a knowledge-based AI application platform. At commit 22ebfacbb43311e9b73294040ae0eb87390c6bba and earlier, artifacts built from untrusted pull request code in .github/workflows/preview-docs-build.yml and .github/workflows/preview-fastgpt-build.yml can be downloaded by privileged workflow_run jobs in .github/workflows/preview-docs-push.yml and .github/workflows/preview-fastgpt-push.yml, allowing attacker-controlled Docker images from the document/ tree or FastGPT build context to be pushed to GHCR and, for documentation previews, deployed with secrets.KUBE_CONFIG_CN.

Affected

ProductAffectedFixed inSource
FastGPT<= 22ebfacbb43311e9b73294040ae0eb87390c6bba–CNA

Scores by source

GitHub_M (CNA)9.3CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:H/VA:N/SC:H/SI:H/SA:L
CISA ADPSSVCExploitation: none · Automatable: yes · Technical impact: partial

References

refgithub.com/labring/FastGPT/security/advisories/GHSA-rvgc-2c29-g876