Vulnerability · Published Jul 15, 2026 · Assigned by GitHub_M

CVE-2026-50562FastGPT: Untrusted PR artifacts are pushed and deployed by privileged preview workflows

Critical 9.3

In plain English

A critical-severity security flaw in FastGPT from labring. There are no confirmed reports of exploitation so far. The chance it is exploited in the next 30 days is estimated at 0.2% (higher than 12% of all known vulnerabilities).

Severity (CVSS 4.0)9.3Critical

Exploit odds (30 days)0.2%top 88.1% of all CVEs

Exploited in the wildNo reportsCISA SSVC: none

Attack toolingNoneno public tooling known

Official description

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 products (as reported)

Vendor	Product	Versions
labring	FastGPT	<= 22ebfacbb43311e9b73294040ae0eb87390c6bba

Weakness: CWE-266, CWE-494, CWE-829 · Vector: CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:H/VA:N/SC:H/SI:H/SA:L

References

https://github.com/labring/FastGPT/security/advisories/GHSA-rvgc-2c29-g876 x_refsource_CONFIRM