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GitHub Actions Vulnerability Affects Fortune 500 Companies

GitHub Actions Vulnerability Affects Fortune 500 Companies

First seen 4 Dec 2025, 18:40 UTC • •

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ThreatCluster AI
ThreatCluster •March 12, 2026 at 13:27 UTC

A prompt injection vulnerability in GitHub Actions has been identified, impacting several Fortune 500 firms. Researchers from Aikido discovered that the flaw was introduced through a specific vulnerable GitHub action, raising concerns about supply chain security. The vulnerability allows for potential exploitation within CI/CD pipelines.

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