onyx

onyx --cves cve-2020-8287

CVE-2020-8287

MEDPOCNode.js
score
<0.1
cvss
6.5
epss
16.3%
published
2021-01-06
kev added
—
first seen

Node.js versions before 10.23.1, 12.20.1, 14.15.4, 15.5.1 contain a header injection vulnerability caused by processing multiple copies of a header field in HTTP requests, letting attackers perform HTTP Request Smuggling, exploit requires sending crafted HTTP requests with duplicate headers.

Timeline

How this CVE moved toward exploitation. Chart: last 30 days — trend score, EPSS, community mentions per day; hover the event lane.

events2021-01-06 — PublishedP2026-10-21 — Tracked by OnyxT2026-10-21 — Public PoCXscore2026-10-21: score <0.1<0.1epss2026-09-22: epss 16.3%2026-09-23: epss 16.3%2026-09-24: epss 16.3%2026-09-25: epss 16.3%2026-09-26: epss 16.3%2026-09-27: epss 16.3%2026-09-28: epss 16.3%2026-09-29: epss 16.3%2026-09-30: epss 16.3%2026-10-01: epss 16.3%2026-10-02: epss 16.3%2026-10-03: epss 16.3%2026-10-04: epss 16.3%2026-10-05: epss 16.3%2026-10-06: epss 16.3%2026-10-07: epss 16.3%2026-10-08: epss 16.3%2026-10-09: epss 16.3%2026-10-10: epss 16.3%2026-10-11: epss 16.3%2026-10-12: epss 16.3%2026-10-13: epss 16.3%2026-10-14: epss 16.3%2026-10-15: epss 16.3%2026-10-16: epss 16.3%2026-10-18: epss 16.3%2026-10-19: epss 16.3%2026-10-20: epss 16.3%2026-10-21: epss 16.3%16.3%mentions/day0no mentions in 30 days2026-09-22today
  1. Published
  2. Tracked by Onyx
  3. Public PoC

Exploit availability

Public PoC flagged by vulnx; no direct exploit link among the citations.

Weaknesses

CWE-444

References 10