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CVE-2026-4148 ExpressionContext use-after-free in classic engine $lookup and $graphLookup aggregation operators

🗓️ 17 Mar 2026 15:53:57Reported by mongodbType 
cvelist
 cvelist
🔗 www.cve.org👁 51 Views

Readers with read access can trigger use-after-free in ExpressionContext via $lookup or $graphLookup in sharded clusters.

Related
Affected
Refs
ReporterTitlePublishedViews
Family
attackerkb
attackerkb
CVE-2026-4148
17 Mar 202615:53
–attackerkb
circl
Circl
CVE-2026-4148
17 Mar 202615:16
–circl
cnnvd
CNNVD
MongoDB Server security vulnerabilities
17 Mar 202600:00
–cnnvd
cve
CVE
CVE-2026-4148
17 Mar 202615:53
–cve
debiancve
Debian CVE
CVE-2026-4148
29 Oct 202617:05
–debiancve
euvd
EUVD
EUVD-2026-12587
17 Mar 202618:30
–euvd
mend
Mend
CVE-2026-4148
17 Mar 202615:53
–mend
mongodb
MongoDB
ExpressionContext use-after-free in classic engine $lookup and $graphLookup aggregation operators
17 Mar 202615:53
–mongodb
nvd
NVD
CVE-2026-4148
17 Mar 202616:16
–nvd
osv_bit
osv_bit
BIT-MONGODB-2026-4148 ExpressionContext use-after-free in classic engine $lookup and $graphLookup aggregation operators
13 May 202608:10
–osv_bit
Rows per page
[
  {
    "vendor": "MongoDB Inc",
    "product": "MongoDB Server",
    "versions": [
      {
        "status": "affected",
        "version": "8.2",
        "lessThan": "8.2.6",
        "versionType": "custom"
      },
      {
        "status": "affected",
        "version": "8.0",
        "lessThan": "8.0.20",
        "versionType": "custom"
      },
      {
        "status": "affected",
        "version": "7.0",
        "lessThan": "7.0.31",
        "versionType": "custom"
      }
    ],
    "defaultStatus": "unaffected"
  }
]

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