Is postcss-loader 5.3 vulnerable?

npm · 1 release from 5.3.0 to 5.3.0 · latest postcss-loader is 8.2.1 · checked 2 Nov 2026

No known advisories in the last release

No. No postcss-loader 5.3.x release has a known security advisory.

Is your project affected?

Private repo? Upload its lockfile instead, or connect GitHub to check every repo.

Which of your client projects are still on postcss-loader 5.3?

NPMscan reads the lockfiles in every GitHub repo you pick, finds the exact postcss-loader version each one installs, and checks it against these advisories. Each finding comes with the command that fixes it.

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Other postcss-loader versions

Advisory data from OSV.dev (opens OSV.dev in a new tab), which includes the GitHub Advisory Database. Release list from the npm registry. Refreshed daily.