CVE-2026-50562
GitHub Actions flaw in FastGPT lets PR code push attacker images and deploy with exposed KUBE_CONFIG_CN.
Is CVE-2026-50562 being exploited?
Not confirmed. CVE-2026-50562 does not appear in CISA's Known Exploited Vulnerabilities catalog, which records only exploitation that has been observed and reported publicly. That is evidence of absence of a report, not evidence the flaw is unattacked. EPSS currently estimates a 0.21% probability of exploitation in the next 30 days.
How severe is CVE-2026-50562?
CVE-2026-50562 is rated Critical with a CVSS score of 9.3. Severity describes how bad exploitation would be, not how likely it is: pair it with exploitation evidence before deciding what to patch first.
Is there a patch for CVE-2026-50562?
Yes. A fix has been recorded for CVE-2026-50562. The vendor advisory is the authority on the exact fixed version — apply it from there rather than from a summary.
What does CVE-2026-50562 affect?
CVE-2026-50562 affects FastGPT (<= commit 22ebfacbb43311e9b73294040ae0eb87390c6bba), GitHub Actions workflows: .github/workflows/preview-docs-build.yml, preview-fastgpt-build.yml, preview-docs-push.yml, preview-fastgpt-push.yml, GitHub Container Registry (GHCR), Kubernetes clusters using KUBE_CONFIG_CN secret. Confirm the exact affected versions against the vendor advisory before deciding you are exposed.
What should I do about CVE-2026-50562?
Disable/limit workflow_run permissions, revoke/rotate KUBE_CONFIG_CN, restrict GHCR pushes, update FastGPT to patched commit.
Exploitation status reflects CISA's KEV catalog as we last synced it. Check the catalog directly.
Malicious PR code can cause privileged workflow runs to push attacker-controlled Docker images to GHCR and deploy docs using KUBE_CONFIG_CN, enabling supply-chain and Kubernetes cluster compromise.
Immediate action required
- affected<= 22ebfacbb43311e9b73294040ae0eb87390c6bba
As published in the CVE Program record. A version outside these ranges is not a statement that it is unaffected — vendors sometimes understate a range, and distribution-backported builds carry upstream numbers that do not reflect what was patched into them.