onyx

onyx --cves cve-2021-28861

CVE-2021-28861

score
0.1
cvss
7.4
epss
2.7% ▲0.2
published
2022-08-23
kev added
—
first seen

Python 3.x through 3.10 contains an open redirection caused by lack of protection against multiple (/) at the beginning of URI path in lib/http/server.py, letting attackers redirect users to malicious sites, exploit requires sending crafted HTTP requests.

Timeline

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

events2022-08-23 — PublishedP2026-10-21 — Tracked by OnyxTscore2026-10-21: score 0.10.1epss2026-09-22: epss 2.5%2026-09-23: epss 2.5%2026-09-24: epss 2.5%2026-09-25: epss 2.5%2026-09-26: epss 2.5%2026-09-27: epss 2.5%2026-09-28: epss 2.5%2026-09-29: epss 2.5%2026-09-30: epss 2.5%2026-10-01: epss 2.5%2026-10-02: epss 2.5%2026-10-03: epss 2.5%2026-10-04: epss 2.5%2026-10-05: epss 2.5%2026-10-06: epss 2.5%2026-10-07: epss 2.5%2026-10-08: epss 2.5%2026-10-09: epss 2.5%2026-10-10: epss 2.5%2026-10-11: epss 2.5%2026-10-12: epss 2.5%2026-10-13: epss 2.5%2026-10-14: epss 2.5%2026-10-15: epss 2.5%2026-10-16: epss 2.5%2026-10-18: epss 2.7%2026-10-19: epss 2.7%2026-10-20: epss 2.7%2026-10-21: epss 2.7%2.7%mentions/day0no mentions in 30 days2026-09-22today
  1. Published
  2. Tracked by Onyx

Weaknesses

CWE-601

References 21