A subtle flaw, a massive blast radius.

A subtle flaw, a massive blast radius.

From Research Saturday by N2K Networks

March 21, 2026 · 17 min · Season 10 · Episode 417

About this episode

Yuval Avrahami discusses a critical supply chain vulnerability in AWS CodeBuild that allows attackers to hijack GitHub repositories.

Yuval Avrahami from Wiz joins to share their work on "CodeBreach: Infiltrating the AWS Console Supply Chain and Hijacking AWS GitHub Repositories via CodeBuild." Wiz Research uncovered “CodeBreach,” a critical supply chain vulnerability caused by a subtle misconfiguration in AWS CodeBuild pipelines that allowed attackers to take over key GitHub repositories, including the widely used AWS JavaScript SDK that powers the AWS Console. By exploiting an unanchored regex filter, unauthenticated attackers could trigger privileged builds, steal credentials, and potentially inject malicious code into software used across a majority of cloud environments. AWS has since remediated the issue and introduced stronger safeguards, but the incident highlights a growing trend of attackers targeting CI/CD pipelines where small misconfigurations can lead to massive downstream impact. The research can be found here: CodeBreach: Infiltrating the AWS Console Supply Chain and Hijacking AWS GitHub Repositories via CodeBuild Learn more about your ad choices. Visit megaphone.fm/adchoices

People in this episode

Guest: Yuval Avrahami

Topics covered

  • AWS vulnerabilities
  • supply chain security
  • CodeBuild
  • CI/CD pipelines
  • cloud security

Keywords

  • CodeBreach
  • AWS CodeBuild
  • supply chain vulnerability
  • GitHub repositories
  • cloud environments
  • misconfiguration
  • CI/CD pipelines

Mentioned in this episode

Organizations: Wiz, AWS

Products: AWS JavaScript SDK

Books & works: CodeBreach: Infiltrating the AWS Console Supply Chain and Hijacking AWS GitHub Repositories via CodeBuild

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