Run the command in a project with a bun.lock file:

bun audit

Bun sends the list of installed packages and versions to NPM, and prints a report of any vulnerabilities that were found. Packages installed from registries other than the default registry are skipped.

If no vulnerabilities are found, the command prints:

No vulnerabilities found

When vulnerabilities are detected, each affected package is listed along with the severity, a short description and a link to the advisory. At the end of the report Bun prints a summary and hints for updating:

3 vulnerabilities (1 high, 2 moderate)
To update all dependencies to the latest compatible versions:
  bun update
To update all dependencies to the latest versions (including breaking changes):
  bun update --latest

Filtering options

--audit-level=<low|moderate|high|critical> - Only show vulnerabilities at this severity level or higher:

bun audit --audit-level=high

--prod - Audit only production dependencies (excludes devDependencies):

bun audit --prod

--ignore <CVE> - Ignore specific CVEs (can be used multiple times):

bun audit --ignore CVE-2022-25883 --ignore CVE-2023-26136

--json

Use the --json flag to print the raw JSON response from the registry instead of the formatted report:

bun audit --json

Exit code

bun audit will exit with code 0 if no vulnerabilities are found and 1 if the report lists any vulnerabilities. This will still happen even if --json is passed.