onyx

onyx --cves cve-2026-106457

CVE-2026-106457

MEDCloudflare
score
0.5
cvss
6.8
epss
0.3%
published
2026-10-06
kev added
—
first seen

Backstage @backstage/plugin-auth-backend-module-cloudflare-access-provider 0.1.0 to 0.5.0 contains an authentication bypass caused by insufficient audience validation in the Cloudflare Access auth provider, letting users with valid tokens for other applications authenticate to Backstage, exploit requires token audience not enforced upstream.

Timeline

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

events2026-10-06 — PublishedP2026-10-21 (seen by) — Tracked by OnyxTscore2026-10-21: score 0.50.5epss2026-10-07: 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-287

References 3