onyx

onyx --cves cve-2026-81528

CVE-2026-81528

MEDMongoDB
score
0.2
cvss
5.4
epss
0.3%
published
2026-08-27
kev added
—
first seen

MongoDB C# driver contains a NoSQL injection caused by missing element-name/shape validation in document-replacement code path, letting attackers execute update logic under application database credentials, exploit requires untrusted loosely-typed input.

Timeline

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

events2026-08-27 — PublishedP2026-10-21 — Tracked by OnyxTscore2026-10-21: score 0.20.2epss2026-09-22: epss 0.2%2026-09-23: epss 0.2%2026-09-24: epss 0.3%2026-09-25: epss 0.3%2026-09-26: epss 0.3%2026-09-27: epss 0.3%2026-09-29: epss 0.3%2026-09-30: epss 0.3%2026-10-01: epss 0.3%2026-10-02: epss 0.3%2026-10-03: epss 0.3%2026-10-04: epss 0.3%2026-10-05: epss 0.3%2026-10-06: epss 0.3%2026-10-07: 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-943

References 2