onyx

onyx --cves cve-2022-39218

CVE-2022-39218

HIGHFastly
score
<0.1
cvss
7.5
epss
0.9%
published
2022-09-20
kev added
—
first seen

Fastly Compute@Edge JavaScript SDK versions prior to 0.5.3 contain a cryptographically weak pseudorandom number generator caused by fixed seed initialization in WebAssembly modules, letting attackers predict random values and bypass security controls, exploit requires attacker to control or predict seed.

Timeline

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

events2022-09-20 — PublishedP2026-10-21 (seen by) — Tracked by OnyxTscore2026-10-21: score <0.1<0.1epss2026-09-22: epss 0.9%2026-09-23: epss 0.9%2026-09-24: epss 0.9%2026-09-25: epss 0.9%2026-09-26: epss 0.9%2026-09-27: epss 0.9%2026-09-28: epss 0.9%2026-09-29: epss 0.9%2026-09-30: epss 0.9%2026-10-01: epss 0.9%2026-10-02: epss 0.9%2026-10-03: epss 0.9%2026-10-04: epss 0.9%2026-10-05: epss 0.9%2026-10-06: epss 0.9%2026-10-07: epss 0.9%2026-10-08: epss 0.9%2026-10-09: epss 0.9%2026-10-10: epss 0.9%2026-10-11: epss 0.9%2026-10-12: epss 0.9%2026-10-13: epss 0.9%2026-10-14: epss 0.9%2026-10-15: epss 0.9%2026-10-16: epss 0.9%2026-10-18: epss 0.9%2026-10-19: epss 0.9%2026-10-20: epss 0.9%2026-10-21: epss 0.9%0.9%mentions/day0no mentions in 30 days2026-09-22today
  1. Published
  2. Tracked by Onyx

Weaknesses

CWE-335

References 1