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Critical GitHub Attack

ID: c5e25145-ea71-5293-8a55-a7490393b83d

STIX ID: report--c5e25145-ea71-5293-8a55-a7490393b83d

Feed Name: Schneier on Security

Threat Score
90/100

Date Published: 2025-03-20

Date Updated: 2026-04-19

Author: Bruce Schneier

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A sophisticated cascading supply‑chain attack against GitHub Actions — initially targeting the tj-actions/changed-files utility and linked to a breach of reviewdog/action-setup@v1 — exposed CI/CD secrets across tens of thousands of repositories (the tool is used by over 23,000 repos); CISA confirmed a patch in version 46.0.1.

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