What’s Vulnerable › Vulnerabilities

CVE-2020-7767: Regular Expression Denial of Service (ReDoS)

• Severity: medium (CVSS 5.0 v2.0)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 1.6% probability of exploitation in the next 30 days
• Public exploit or detection template: yes
• Published: 2020-11-11 · updated 2026-06-17
• Weakness: CWE-400

Description

All versions of package express-validators are vulnerable to Regular Expression Denial of Service (ReDoS) when validating specifically-crafted invalid urls.

Affected products

• express-validators: all versions

References

• https://snyk.io/vuln/SNYK-JS-EXPRESSVALIDATORS-1017404
• https://snyk.io/vuln/SNYK-JS-EXPRESSVALIDATORS-1017404

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