onyx

onyx --cves cve-2026-64647

CVE-2026-64647

MEDNext.js
score
0.1
cvss
5.4
epss
0.3%
published
2026-07-27
kev added
—
first seen

Next.js 12.0.0 through 15.5.20 and 16.0.0 through 16.2.10 contain an information disclosure vulnerability caused by server-side fetch caching response bodies incorrectly for requests with non-UTF-8 charset, letting attackers receive cached confidential data from other requests, exploit requires sending requests with non-UTF-8 charset bodies.

Timeline

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

events2026-07-27 — PublishedP2026-10-21 — Tracked by OnyxTscore2026-10-21: score 0.10.1epss2026-09-22: epss 0.4%2026-09-23: epss 0.4%2026-09-24: epss 0.3%2026-09-25: epss 0.3%2026-09-26: epss 0.3%2026-09-27: epss 0.3%2026-09-29: epss 0.3%2026-09-30: epss 0.3%2026-10-01: epss 0.3%2026-10-02: epss 0.3%2026-10-03: epss 0.3%2026-10-04: epss 0.3%2026-10-05: epss 0.3%2026-10-06: epss 0.3%2026-10-07: epss 0.3%2026-10-08: epss 0.3%2026-10-09: epss 0.3%2026-10-10: epss 0.3%2026-10-11: epss 0.3%2026-10-12: epss 0.3%2026-10-13: epss 0.3%2026-10-14: epss 0.3%2026-10-15: epss 0.3%2026-10-16: epss 0.3%2026-10-18: epss 0.3%2026-10-19: epss 0.3%2026-10-20: epss 0.3%2026-10-21: epss 0.3%0.3%mentions/day0no mentions in 30 days2026-09-22today
  1. Published
  2. Tracked by Onyx

Weaknesses

CWE-116

References 5