onyx

onyx --cves cve-2026-48090

CVE-2026-48090

MEDPOCEnvoy Proxy
score
1.7
cvss
5.9
epss
0.6%
published
2026-06-26
kev added
—
first seen

Envoy 1.37.0 to 1.37.5 and 1.38.3 contains a use-after-free vulnerability caused by the HTTP OAuth2 filter invoking methods on destroyed stream callbacks, letting remote attackers cause denial of service via worker crashes, exploit requires no special privileges.

Timeline

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

events2026-06-26 — PublishedP2026-10-21 — Tracked by OnyxT2026-10-21 — Public PoCXscore2026-10-21: score 1.71.7epss2026-09-22: epss 0.6%2026-09-23: epss 0.6%2026-09-24: epss 0.6%2026-09-25: epss 0.6%2026-09-26: epss 0.6%2026-09-27: epss 0.6%2026-09-29: epss 0.6%2026-09-30: epss 0.6%2026-10-01: epss 0.6%2026-10-02: epss 0.6%2026-10-03: epss 0.6%2026-10-04: epss 0.6%2026-10-05: epss 0.6%2026-10-06: epss 0.6%2026-10-07: epss 0.6%2026-10-08: epss 0.6%2026-10-09: epss 0.6%2026-10-10: epss 0.6%2026-10-11: epss 0.6%2026-10-12: epss 0.6%2026-10-13: epss 0.6%2026-10-14: epss 0.6%2026-10-15: epss 0.6%2026-10-16: epss 0.6%2026-10-18: epss 0.6%2026-10-19: epss 0.6%2026-10-20: epss 0.6%2026-10-21: epss 0.6%0.6%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-416

References 1