critical
CVE-2026-18691
Improper Authentication in MongoDB Intra-Cluster Connections Allows Credential Exposure
In the Trivy database since at least 24 Oct 2026, 07:11 UTCWhen it arrived before that build is not recorded.
Severity by source
Bitnami9.0CVSS:4.0/AV:A/AC:L/AT:P/PR:N/UI:N/VC:H/VI:H/VA:H/SC:H/SI:H/SA:H
Trivy's own label is CRITICAL. Rated critical by Bitnami.
Description
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.
Affected packages and fixed versions
| Source | Package | Fixed in |
|---|---|---|
| bitnami::Bitnami Vulnerability Database | mongodb | 7.0.40, 8.0.29, 8.3.8, 9.0.2 |
| minimos | mongod-7.0, mongod-8.0, mongod-8.3 | 7.0.40-r0 and 2 more |
| rapidfort ubuntu 20.04 | mongodb-org | 7.0.40, 8.0.29, 8.3.8 |
| rapidfort ubuntu 22.04 | mongodb-org | 7.0.40, 8.0.29, 8.3.8 |
| rapidfort ubuntu 24.04 | mongodb-org | 7.0.40, 8.0.29, 8.3.8 |
Show all 7 entries from 5 sources
| Source | Package | Fixed in |
|---|---|---|
| bitnami::Bitnami Vulnerability Database | mongodb | 7.0.40, 8.0.29, 8.3.8, 9.0.2 |
| minimos | mongod-7.0 | 7.0.40-r0 |
| minimos | mongod-8.0 | 8.0.29-r0 |
| minimos | mongod-8.3 | 8.3.8-r0 |
| rapidfort ubuntu 20.04 | mongodb-org | 7.0.40, 8.0.29, 8.3.8 |
| rapidfort ubuntu 22.04 | mongodb-org | 7.0.40, 8.0.29, 8.3.8 |
| rapidfort ubuntu 24.04 | mongodb-org | 7.0.40, 8.0.29, 8.3.8 |