onyx

onyx --cves cve-2021-25742

CVE-2021-25742

HIGHPOCKubernetes
score
<0.1
cvss
7.6
epss
2.1%
published
2021-10-29
kev added
—
first seen

ingress-nginx contains a security issue where a user with permissions to create or update ingress objects can exploit the custom snippets feature to access all secrets in the cluster, exploit requires user to have ingress object permissions.

Timeline

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

events2021-10-29 — PublishedP2026-10-21 — Tracked by OnyxT2026-10-21 — Public PoCXscore2026-10-21: score <0.1<0.1epss2026-09-22: epss 2.1%2026-09-23: epss 2.1%2026-09-24: epss 2.1%2026-09-25: epss 2.1%2026-09-26: epss 2.1%2026-09-27: epss 2.1%2026-09-28: epss 2.1%2026-09-29: epss 2.1%2026-09-30: epss 2.1%2026-10-01: epss 2.1%2026-10-02: epss 2.1%2026-10-03: epss 2.1%2026-10-04: epss 2.1%2026-10-05: epss 2.1%2026-10-06: epss 2.1%2026-10-07: epss 2.1%2026-10-08: epss 2.1%2026-10-09: epss 2.1%2026-10-10: epss 2.1%2026-10-11: epss 2.1%2026-10-12: epss 2.1%2026-10-13: epss 2.1%2026-10-14: epss 2.1%2026-10-15: epss 2.1%2026-10-16: epss 2.1%2026-10-18: epss 2.1%2026-10-19: epss 2.1%2026-10-20: epss 2.1%2026-10-21: epss 2.1%2.1%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-20 NVD-CWE-noinfo

References 3