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Vulnerability Details CVE-2026-82059

An internal aggregation expression in MongoDB Server was incorrectly registered as accessible to any authenticated user rather than being restricted to internal cluster operations. By crafting a malformed index specification within this expression, an authenticated user with read-only privileges could trigger an assertion failure in the index key generation code path. In certain build configurations, this assertion failure results in termination of the mongod process, causing a denial of service to all connected clients.
Exploit prediction scoring system (EPSS) score
EPSS Score 0.003
EPSS Ranking 17.2%
CVSS Severity
CVSS v3 Score 5.3
Products affected by CVE-2026-82059
  • Mongodb » Mongodb » Version: 8.0.0
    cpe:2.3:a:mongodb:mongodb:8.0.0
  • Mongodb » Mongodb » Version: 8.0.1
    cpe:2.3:a:mongodb:mongodb:8.0.1
  • Mongodb » Mongodb » Version: 8.0.10
    cpe:2.3:a:mongodb:mongodb:8.0.10
  • Mongodb » Mongodb » Version: 8.0.11
    cpe:2.3:a:mongodb:mongodb:8.0.11
  • Mongodb » Mongodb » Version: 8.0.12
    cpe:2.3:a:mongodb:mongodb:8.0.12
  • Mongodb » Mongodb » Version: 8.0.13
    cpe:2.3:a:mongodb:mongodb:8.0.13
  • Mongodb » Mongodb » Version: 8.0.14
    cpe:2.3:a:mongodb:mongodb:8.0.14
  • Mongodb » Mongodb » Version: 8.0.15
    cpe:2.3:a:mongodb:mongodb:8.0.15
  • Mongodb » Mongodb » Version: 8.0.16
    cpe:2.3:a:mongodb:mongodb:8.0.16
  • Mongodb » Mongodb » Version: 8.0.17
    cpe:2.3:a:mongodb:mongodb:8.0.17
  • Mongodb » Mongodb » Version: 8.0.18
    cpe:2.3:a:mongodb:mongodb:8.0.18
  • Mongodb » Mongodb » Version: 8.0.19
    cpe:2.3:a:mongodb:mongodb:8.0.19
  • Mongodb » Mongodb » Version: 8.0.2
    cpe:2.3:a:mongodb:mongodb:8.0.2
  • Mongodb » Mongodb » Version: 8.0.20
    cpe:2.3:a:mongodb:mongodb:8.0.20
  • Mongodb » Mongodb » Version: 8.0.21
    cpe:2.3:a:mongodb:mongodb:8.0.21
  • Mongodb » Mongodb » Version: 8.0.23
    cpe:2.3:a:mongodb:mongodb:8.0.23
  • Mongodb » Mongodb » Version: 8.0.24
    cpe:2.3:a:mongodb:mongodb:8.0.24
  • Mongodb » Mongodb » Version: 8.0.25
    cpe:2.3:a:mongodb:mongodb:8.0.25
  • Mongodb » Mongodb » Version: 8.0.26
    cpe:2.3:a:mongodb:mongodb:8.0.26
  • Mongodb » Mongodb » Version: 8.0.28
    cpe:2.3:a:mongodb:mongodb:8.0.28
  • Mongodb » Mongodb » Version: 8.0.3
    cpe:2.3:a:mongodb:mongodb:8.0.3
  • Mongodb » Mongodb » Version: 8.0.4
    cpe:2.3:a:mongodb:mongodb:8.0.4
  • Mongodb » Mongodb » Version: 8.0.5
    cpe:2.3:a:mongodb:mongodb:8.0.5
  • Mongodb » Mongodb » Version: 8.0.6
    cpe:2.3:a:mongodb:mongodb:8.0.6
  • Mongodb » Mongodb » Version: 8.0.7
    cpe:2.3:a:mongodb:mongodb:8.0.7
  • Mongodb » Mongodb » Version: 8.0.8
    cpe:2.3:a:mongodb:mongodb:8.0.8
  • Mongodb » Mongodb » Version: 8.0.9
    cpe:2.3:a:mongodb:mongodb:8.0.9


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