What’s Vulnerable › Vulnerabilities

CVE-2021-3804: Inefficient Regular Expression Complexity in nervjs/taro

• Severity: high (CVSS 7.5 v3.1)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 1.3% probability of exploitation in the next 30 days
• Public exploit or detection template: yes
• Published: 2021-09-17 · updated 2026-06-17
• Weakness: CWE-1333

Description

taro is vulnerable to Inefficient Regular Expression Complexity

Affected products

• tarojs taro: before 3.3.9 — fixed in 3.3.9

How to fix

Upgrade to a fixed version: tarojs taro 3.3.9. Check the vendor advisory for mitigations.

References

• https://github.com/nervjs/taro/commit/acadb6c826ba57f2030a626f1de4f7b4608fcdb5
• https://huntr.dev/bounties/0ebe85e6-cc85-42b8-957e-18d8df277414
• https://github.com/nervjs/taro/commit/acadb6c826ba57f2030a626f1de4f7b4608fcdb5
• https://huntr.dev/bounties/0ebe85e6-cc85-42b8-957e-18d8df277414

Get alerted when CVE-2021-3804 or the next vulnerability affects your stack