Zod denial of service vulnerability during email validation

Description

API servers running express-zod-api having:

• version of express-zod-api below 10.0.0-beta1,
• and using the following (or similar) validation schema in its implementation: z.string().email(),

are vulnerable to a DoS attack due to:

• Inefficient Regular Expression Complexity in zod versions up to 3.22.2,
• depending on zod.

Recommendation

Update the express-zod-api package to the latest compatible version. Followings are version details:

• Affected version(s): < 10.0.0-beta1
• Patched version(s): 10.0.0-beta1

References

• GHSA-mvrp-3cvx-c325
• CWE-1333

Related Issues

• Vite's `server.fs` settings were not applied to HTML files - CVE-2025-58752
• Trix editor subject to XSS vulnerabilities on copy & paste - CVE-2024-53847
• Knwl.js Regular Expression Denial of Service vulnerability - CVE-2020-26306
• VvvebJs Reflected Cross-Site Scripting (XSS) vulnerability - CVE-2024-29271

Tags:

npm

express-zod-api