onyx

onyx --cves cve-2026-21716

CVE-2026-21716

LOWNode.js
score
<0.1
cvss
3.3
epss
0.1%
published
2026-03-30
kev added
—
first seen

Node.js 20.x, 22.x, 24.x, and 25.x contain a broken access control vulnerability caused by missing permission checks in FileHandle.chmod() and FileHandle.chown() promises API, letting attackers bypass write restrictions on open file descriptors, exploit requires restricted --allow-fs-write permission model.

Timeline

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

events2026-03-30 — PublishedP2026-10-21 — Tracked by OnyxTscore2026-10-21: score <0.1<0.1epss2026-09-22: epss 0.1%2026-09-23: epss 0.1%2026-09-24: epss 0.1%2026-09-25: epss 0.1%2026-09-26: epss 0.1%2026-09-27: epss 0.1%2026-09-29: epss 0.1%2026-09-30: epss 0.1%2026-10-01: epss 0.1%2026-10-02: epss 0.1%2026-10-03: epss 0.1%2026-10-04: epss 0.1%2026-10-05: epss 0.1%2026-10-06: epss 0.1%2026-10-07: epss 0.1%2026-10-08: epss 0.1%2026-10-09: epss 0.1%2026-10-10: epss 0.1%2026-10-11: epss 0.1%2026-10-12: epss 0.1%2026-10-13: epss 0.1%2026-10-14: epss 0.1%2026-10-15: epss 0.1%2026-10-16: epss 0.1%2026-10-18: epss 0.1%2026-10-19: epss 0.1%2026-10-20: epss 0.1%2026-10-21: epss 0.1%0.1%mentions/day0no mentions in 30 days2026-09-22today
  1. Published
  2. Tracked by Onyx

Weaknesses

CWE-862

References 1