Wiz AI Security · August 17, 2026

Wiz Red Agent Finds Its Way Into Snowflake’s Internal Jira Through a Flaw in a GitHub Copilot–Assisted PR

Why it matters

Wiz Red Agent found and validated a GitHub Actions shell injection in Snowflake's public connector repository five days after merge. Any user could trigger the workflow with a crafted issue title; direct GitHub-expression interpolation broke out of a shell string, and an ineffective condition left the job open. The agent adapted after a syntax error and exfiltrated a Jira token. Snowflake patched and rotated it the same day, with audits finding no unrelated access.

My takeaway: Treat AI-associated pull requests exactly like any other untrusted code change, while testing whether review agents can recognize security regressions. Keep GitHub event data in environment variables and pass it as structured arguments, prohibit expression interpolation inside shell scripts, restrict workflow tokens and egress, use short-lived downstream credentials, and alert when a formerly safe pattern is replaced by direct command construction.
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