CVE-2026-50562 labring CVE debrief

Who should care

Defenders responsible for CI/CD security, GitHub workflow management, and secret management should assess exposure and implement compensating controls. This includes operators, platform administrators, vulnerability management teams, and security teams who need to verify affected versions and configurations, assess exposure, and implement mitigations to prevent unauthorized access and deployment of malicious images.

Why it matters

CVE-2026-50562 is a critical vulnerability in FastGPT that allows attacker-controlled Docker images to be pushed to GHCR and deployed with secrets, potentially leading to unauthorized access and deployment of malicious images. Defenders should prioritize verifying affected versions, assessing exposure, and implementing compensating controls.

• Potential deployment of attacker-controlled Docker images with secrets
• Possible unauthorized access to sensitive workflows and secrets
• Required verification of affected versions and configurations
• Need for compensating controls to restrict access to vulnerable workflows

Technical summary

The vulnerability in FastGPT allows artifacts built from untrusted pull request code to be downloaded by privileged workflow_run jobs, enabling attacker-controlled Docker images to be pushed to GHCR and deployed with secrets. This vulnerability could allow attackers to deploy malicious images with elevated privileges. Affected product deployments should be verified, and compensating controls should be implemented to restrict access to sensitive workflows and secrets. The vulnerability affects FastGPT at commit 22ebfacbb43311e9b73294040ae0eb87390c6bba and earlier.

Defensive priority

Defenders should prioritize verifying affected versions and configurations, assessing exposure in CI/CD workflows, and implementing compensating controls to restrict access to sensitive workflows and secrets.

Recommended defensive actions

• Verify affected versions and configurations of FastGPT in use
• Assess exposure to vulnerable workflows and secrets
• Implement compensating controls to restrict access to sensitive workflows and secrets
• Monitor for suspicious activity in CI/CD pipelines
• Review compensating controls for exposed systems while remediation is scheduled and verified
• Track exceptions, retest remediated assets, and close the item only after evidence is documented
• Confirm whether affected product deployments exist in managed environments and assign an owner for follow-up

Evidence notes

The CVE record and NVD entry provide details on the vulnerability in FastGPT, including affected commits and workflows. However, specific version information and remediation steps are not provided in the source corpus.

Sources and references

Methodology and review provenance

AI-assisted synthesis based on stored public vulnerability evidence. System validation, approval state, and publication status do not by themselves establish human review of this revision. PatchSiren helps prioritize defensive review and does not prove exposure or remediation on any system.