Improper Authentication in MongoDB Intra-Cluster Connections Allows Credential Exposure (MongoDB MongoDB Server)

CVE-2026-18691
CRITICAL 9.0

En bref

Source
NVD
EPSS
EPSS 0.36 % · centile 29 ()
État
PUBLISHED
Publiée
Mise à jour
Attribuée par
mongodb
Statut NVD
Analyzed

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.

Faiblesses (CWE)

  • CWE-757 — Selection of Less-Secure Algorithm During Negotiation

Références

Scores

VersionScoreVecteurÉvalué par
CVSS 4.0CRITICAL 9.0CVSS:4.0/AV:A/AC:L/AT:P/PR:N/UI:N/VC:H/VI:H/VA:H/SC:H/SI:H/SA:Hmongodb
CVSS 3.1HIGH 8.8CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:Hmongodb
CVSS 4.0CRITICAL 9.0CVSS:4.0/AV:A/AC:L/AT:P/PR:N/UI:N/VC:H/VI:H/VA:H/SC:H/SI:H/SA:H/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:XNVD · cna@mongodb.com (Secondary)
CVSS 3.1HIGH 8.8CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:HNVD · cna@mongodb.com (Secondary)

Références européennes

Configurations affectées (CPE NVD)

Produits affectés

ProduitVersions
MongoDB · MongoDB Serveraffected 8.3.0 < 8.3.8 ; affected 8.0 < 8.0.29 ; affected 7.0 < 7.0.40

Sources

SourceLicence
CVE List (CVEProject cvelistV5)CVE Program Terms of Use
EPSS (FIRST.org)FIRST — attribution requested
ENISA EUVDENISA — reproduction authorised, source acknowledged
NVD (NIST) via fkie-cad/nvd-json-data-feedsPublic domain — this product uses data from the NVD API but is not endorsed or certified by the NVD