onyx

onyx --cves cve-2025-32421

CVE-2025-32421

LOWPOCNext.js
score
<0.1
cvss
3.7
epss
0.8%
published
2025-05-14
kev added
—
first seen

Next.js < 14.2.24 and < 15.1.6 contain a race condition caused by improper handling of the x-now-route-matches header in the Pages Router, letting attackers cause endpoints to serve pageProps data instead of HTML, exploit requires misconfiguration.

Timeline

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

events2025-05-14 — PublishedP2026-10-21 — Tracked by OnyxT2026-10-21 — Public PoCXscore2026-10-21: score <0.1<0.1epss2026-09-22: epss 0.8%2026-09-23: epss 0.8%2026-09-24: epss 0.8%2026-09-25: epss 0.8%2026-09-26: epss 0.8%2026-09-27: epss 0.8%2026-09-29: epss 0.8%2026-09-30: epss 0.8%2026-10-01: epss 0.8%2026-10-02: epss 0.8%2026-10-03: epss 0.8%2026-10-04: epss 0.8%2026-10-05: epss 0.8%2026-10-06: epss 0.8%2026-10-07: epss 0.8%2026-10-08: epss 0.8%2026-10-09: epss 0.8%2026-10-10: epss 0.8%2026-10-11: epss 0.8%2026-10-12: epss 0.8%2026-10-13: epss 0.8%2026-10-14: epss 0.8%2026-10-15: epss 0.8%2026-10-16: epss 0.8%2026-10-18: epss 0.8%2026-10-19: epss 0.8%2026-10-20: epss 0.8%2026-10-21: epss 0.8%0.8%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-362

References 2