CVE-2020-8287: Debian Linux

Medium severity, CVSS 6.5. EPSS: 16.3% chance of exploitation in the next 30 days.

Node.js versions before 10.23.1, 12.20.1, 14.15.4, 15.5.1 allow two copies of a header field in an HTTP request (for example, two Transfer-Encoding header fields). In this case, Node.js identifies the first header field and ignores the second. This can lead to HTTP Request Smuggling.

Affected products

• Debian Debian Linux: version 10.0 only
• Fedoraproject Fedora: version 32 only; version 33 only
• Node.js Node.js: from 10.0.0, before 10.23.1 (fixed in 10.23.1); from 12.0.0, before 12.20.1 (fixed in 12.20.1); from 14.0.0, before 14.15.4 (fixed in 14.15.4); from 15.0.0, before 15.5.1 (fixed in 15.5.1)
• Oracle Graalvm: version 19.3.4 only; version 20.3.0 only
• Siemens Sinec Infrastructure Network Services: before 1.0.1.1 (fixed in 1.0.1.1)

Published 2021-01-06. Last modified 2026-06-17.