The threat of rogue package signatures
When a CI/CD pipeline pulls a dependency, it assumes the artifact came from a trusted source. In 2025, several high‑profile supply‑chain incidents showed that attackers can replace a legitimate package with a malicious one that carries a valid signature. The signature itself is not the problem; it is the trust anchor that the pipeline uses to verify it. If that anchor is compromised or misconfigured, the entire build chain can be subverted.
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