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onyx --cves cve-2026-28798

CVE-2026-28798

CRITPOCCloudflare
score
0.2
cvss
9.0
epss
0.5%
published
2026-04-03
kev added
—
first seen

ZimaOS < 1.5.3 contains an authentication bypass caused by proxy endpoint /v1/sys/proxy allowing unauthenticated access to internal localhost services via Cloudflare Tunnel, letting remote attackers access sensitive internal endpoints, exploit requires product exposure through Cloudflare Tunnel.

Timeline

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

events2026-04-03 — PublishedP2026-10-21 — Tracked by OnyxT2026-10-21 — Public PoCXscore2026-10-21: score 0.20.2epss2026-09-22: epss 0.4%2026-09-23: epss 0.4%2026-09-24: epss 0.5%2026-09-25: epss 0.5%2026-09-26: epss 0.5%2026-09-27: epss 0.5%2026-09-29: epss 0.5%2026-09-30: epss 0.5%2026-10-01: epss 0.5%2026-10-02: epss 0.5%2026-10-03: epss 0.5%2026-10-04: epss 0.5%2026-10-05: epss 0.5%2026-10-06: epss 0.5%2026-10-07: epss 0.5%2026-10-08: epss 0.5%2026-10-09: epss 0.5%2026-10-10: epss 0.5%2026-10-11: epss 0.5%2026-10-12: epss 0.5%2026-10-13: epss 0.5%2026-10-14: epss 0.5%2026-10-15: epss 0.5%2026-10-16: epss 0.5%2026-10-18: epss 0.5%2026-10-19: epss 0.5%2026-10-20: epss 0.5%2026-10-21: epss 0.5%0.5%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-918

References 2