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Vulnerabilities
Vulnerable Software

Vulnerability Details CVE-2026-18691

An issue in MongoDB Server's intra-cluster connection setup could allow a party with suitable network access to influence which authentication mechanism is used when one replica set member connects to another. Under certain conditions, this could cause the cluster's shared internal credential to be transmitted in a less-protected form, potentially allowing that credential to be recovered. If recovered, the credential could be used to authenticate as the internal superuser to nodes in the deployment.
Exploit prediction scoring system (EPSS) score
EPSS Score 0.002
EPSS Ranking 15.0%
CVSS Severity
CVSS v3 Score 8.8
Products affected by CVE-2026-18691
  • Mongodb » Mongodb » Version: 7.0.0
    cpe:2.3:a:mongodb:mongodb:7.0.0
  • Mongodb » Mongodb » Version: 7.0.1
    cpe:2.3:a:mongodb:mongodb:7.0.1
  • Mongodb » Mongodb » Version: 7.0.10
    cpe:2.3:a:mongodb:mongodb:7.0.10
  • Mongodb » Mongodb » Version: 7.0.11
    cpe:2.3:a:mongodb:mongodb:7.0.11
  • Mongodb » Mongodb » Version: 7.0.12
    cpe:2.3:a:mongodb:mongodb:7.0.12
  • Mongodb » Mongodb » Version: 7.0.13
    cpe:2.3:a:mongodb:mongodb:7.0.13
  • Mongodb » Mongodb » Version: 7.0.14
    cpe:2.3:a:mongodb:mongodb:7.0.14
  • Mongodb » Mongodb » Version: 7.0.15
    cpe:2.3:a:mongodb:mongodb:7.0.15
  • Mongodb » Mongodb » Version: 7.0.16
    cpe:2.3:a:mongodb:mongodb:7.0.16
  • Mongodb » Mongodb » Version: 7.0.17
    cpe:2.3:a:mongodb:mongodb:7.0.17
  • Mongodb » Mongodb » Version: 7.0.18
    cpe:2.3:a:mongodb:mongodb:7.0.18
  • Mongodb » Mongodb » Version: 7.0.19
    cpe:2.3:a:mongodb:mongodb:7.0.19
  • Mongodb » Mongodb » Version: 7.0.2
    cpe:2.3:a:mongodb:mongodb:7.0.2
  • Mongodb » Mongodb » Version: 7.0.20
    cpe:2.3:a:mongodb:mongodb:7.0.20
  • Mongodb » Mongodb » Version: 7.0.21
    cpe:2.3:a:mongodb:mongodb:7.0.21
  • Mongodb » Mongodb » Version: 7.0.22
    cpe:2.3:a:mongodb:mongodb:7.0.22
  • Mongodb » Mongodb » Version: 7.0.23
    cpe:2.3:a:mongodb:mongodb:7.0.23
  • Mongodb » Mongodb » Version: 7.0.24
    cpe:2.3:a:mongodb:mongodb:7.0.24
  • Mongodb » Mongodb » Version: 7.0.25
    cpe:2.3:a:mongodb:mongodb:7.0.25
  • Mongodb » Mongodb » Version: 7.0.26
    cpe:2.3:a:mongodb:mongodb:7.0.26
  • Mongodb » Mongodb » Version: 7.0.27
    cpe:2.3:a:mongodb:mongodb:7.0.27
  • Mongodb » Mongodb » Version: 7.0.28
    cpe:2.3:a:mongodb:mongodb:7.0.28
  • Mongodb » Mongodb » Version: 7.0.29
    cpe:2.3:a:mongodb:mongodb:7.0.29
  • Mongodb » Mongodb » Version: 7.0.3
    cpe:2.3:a:mongodb:mongodb:7.0.3
  • Mongodb » Mongodb » Version: 7.0.30
    cpe:2.3:a:mongodb:mongodb:7.0.30
  • Mongodb » Mongodb » Version: 7.0.31
    cpe:2.3:a:mongodb:mongodb:7.0.31
  • Mongodb » Mongodb » Version: 7.0.32
    cpe:2.3:a:mongodb:mongodb:7.0.32
  • Mongodb » Mongodb » Version: 7.0.34
    cpe:2.3:a:mongodb:mongodb:7.0.34
  • Mongodb » Mongodb » Version: 7.0.35
    cpe:2.3:a:mongodb:mongodb:7.0.35
  • Mongodb » Mongodb » Version: 7.0.36
    cpe:2.3:a:mongodb:mongodb:7.0.36
  • Mongodb » Mongodb » Version: 7.0.37
    cpe:2.3:a:mongodb:mongodb:7.0.37
  • Mongodb » Mongodb » Version: 7.0.39
    cpe:2.3:a:mongodb:mongodb:7.0.39
  • Mongodb » Mongodb » Version: 7.0.4
    cpe:2.3:a:mongodb:mongodb:7.0.4
  • Mongodb » Mongodb » Version: 7.0.5
    cpe:2.3:a:mongodb:mongodb:7.0.5
  • Mongodb » Mongodb » Version: 7.0.6
    cpe:2.3:a:mongodb:mongodb:7.0.6
  • Mongodb » Mongodb » Version: 7.0.7
    cpe:2.3:a:mongodb:mongodb:7.0.7
  • Mongodb » Mongodb » Version: 7.0.8
    cpe:2.3:a:mongodb:mongodb:7.0.8
  • Mongodb » Mongodb » Version: 7.0.9
    cpe:2.3:a:mongodb:mongodb:7.0.9
  • 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
  • Mongodb » Mongodb » Version: 8.2.0
    cpe:2.3:a:mongodb:mongodb:8.2.0
  • Mongodb » Mongodb » Version: 8.2.1
    cpe:2.3:a:mongodb:mongodb:8.2.1
  • Mongodb » Mongodb » Version: 8.2.10
    cpe:2.3:a:mongodb:mongodb:8.2.10
  • Mongodb » Mongodb » Version: 8.2.11
    cpe:2.3:a:mongodb:mongodb:8.2.11
  • Mongodb » Mongodb » Version: 8.2.12
    cpe:2.3:a:mongodb:mongodb:8.2.12
  • Mongodb » Mongodb » Version: 8.2.2
    cpe:2.3:a:mongodb:mongodb:8.2.2
  • Mongodb » Mongodb » Version: 8.2.3
    cpe:2.3:a:mongodb:mongodb:8.2.3
  • Mongodb » Mongodb » Version: 8.2.4
    cpe:2.3:a:mongodb:mongodb:8.2.4
  • Mongodb » Mongodb » Version: 8.2.5
    cpe:2.3:a:mongodb:mongodb:8.2.5
  • Mongodb » Mongodb » Version: 8.2.6
    cpe:2.3:a:mongodb:mongodb:8.2.6
  • Mongodb » Mongodb » Version: 8.2.7
    cpe:2.3:a:mongodb:mongodb:8.2.7
  • Mongodb » Mongodb » Version: 8.2.9
    cpe:2.3:a:mongodb:mongodb:8.2.9
  • Mongodb » Mongodb » Version: 8.3.0
    cpe:2.3:a:mongodb:mongodb:8.3.0
  • Mongodb » Mongodb » Version: 8.3.1
    cpe:2.3:a:mongodb:mongodb:8.3.1
  • Mongodb » Mongodb » Version: 8.3.2
    cpe:2.3:a:mongodb:mongodb:8.3.2
  • Mongodb » Mongodb » Version: 8.3.3
    cpe:2.3:a:mongodb:mongodb:8.3.3
  • Mongodb » Mongodb » Version: 8.3.4
    cpe:2.3:a:mongodb:mongodb:8.3.4
  • Mongodb » Mongodb » Version: 8.3.7
    cpe:2.3:a:mongodb:mongodb:8.3.7
  • Mongodb » Mongodb » Version: 9.0.0
    cpe:2.3:a:mongodb:mongodb:9.0.0
  • Mongodb » Mongodb » Version: 9.1.0
    cpe:2.3:a:mongodb:mongodb:9.1.0


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