Is ansi-regex 5.0 vulnerable?

npm · 2 releases from 5.0.0 to 5.0.1 · latest ansi-regex is 6.5.0 · checked 2 Nov 2026

No known advisories in the last release

ansi-regex 5.0.1, the last 5.0 release, has no known advisories. 1 advisory affects earlier 5.0.x releases, so update to 5.0.1.

Update within 5.0:npm install ansi-regex@5.0.1

Is your project affected?

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

Fixed within 5.0.x, affecting earlier releases

  • HighCVE-2021-3807GHSA-93q8-gq69-wqmw20 Sept 2021

    Inefficient Regular Expression Complexity in chalk/ansi-regex

    Affected
    >=6.0.0 <6.0.1 · >=5.0.0 <5.0.1 · >=4.0.0 <4.1.1 · >=3.0.0 <3.0.1
    Fixed in
    3.0.1, 4.1.1, 5.0.1, 6.0.1

Which of your client projects are still on ansi-regex 5.0?

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

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Other ansi-regex 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.