Developers Report Unexplained Obfuscated Code in Next.js and PostCSS Config Files

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A GitHub community discussion described obfuscated code appearing in next.config.js and postcss.config.js without any manual edits by developers. The original poster, maewhyxng2-prog, reported the changes surfacing during build or linting checks, raising concerns about unauthorized injection and supply chain risks. Their team responded with stricter static analysis via CodeQL and cryptographic hashing of configuration files, yet the source of the mutations remained unidentified. A community member, 4Raisan, recommended isolating the exact pipeline step where the files change, preserving evidence, and reproducing the issue in a clean environment. The discussion highlights how even well-secured projects can experience unexpected configuration changes that require systematic investigation.

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