What’s Vulnerable › Vulnerabilities

CVE-2020-8251

• Severity: high (CVSS 7.5 v3.1)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 8.4% probability of exploitation in the next 30 days
• Public exploit or detection template: none known
• Published: 2020-09-18 · updated 2026-06-17
• Weakness: CWE-400

Description

Node.js < 14.11.0 is vulnerable to HTTP denial of service (DoS) attacks based on delayed requests submission which can make the server unable to accept new connections.

Affected products

• Fedoraproject Fedora: 33
• Node.js: from 14.0.0 before 14.11.0 — fixed in 14.11.0

How to fix

Upgrade to a fixed version: Node.js 14.11.0. Check the vendor advisory for mitigations.

References

• https://hackerone.com/reports/868834
• https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/4OOYAMJVLLCLXDTHW3V5UXNULZBBK4O6/
• https://nodejs.org/en/blog/vulnerability/september-2020-security-releases/
• https://security.gentoo.org/glsa/202101-07
• https://security.netapp.com/advisory/ntap-20201009-0004/
• https://hackerone.com/reports/868834
• https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/4OOYAMJVLLCLXDTHW3V5UXNULZBBK4O6/
• https://nodejs.org/en/blog/vulnerability/september-2020-security-releases/
• https://security.gentoo.org/glsa/202101-07
• https://security.netapp.com/advisory/ntap-20201009-0004/

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