Remote code execution via the `pretty` option.

Description

If a remote attacker was able to control the pretty option of the pug compiler, e.g. if you spread a user provided object such as the query parameters of a request into the pug template inputs, it was possible for them to achieve remote code execution on the node.js backend.

Recommendation

Update the pug package to the latest compatible version. Followings are version details:

• Affected version(s): < 3.0.1
• Patched version(s): 3.0.1

References

• GHSA-p493-635q-r6gr
• www.npmjs.com
• CVE-2021-21353
• CWE-74
• CWE-94
• CAPEC-310
• OWASP 2021-A3
• OWASP 2021-A6

Related Issues

• min-document vulnerable to prototype pollution - CVE-2025-57352
• Vite bypasses server.fs.deny when using ?raw?? - CVE-2025-30208
• GetmeUK ContentTools Cross-Site Scripting (XSS) - CVE-2025-2699
• node-gettext vulnerable to Prototype Pollution - CVE-2024-21528

Tags:

npm

pug