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CVE-2026-9740 Unbounded recursion in BSONColumn interleaved-reference causes pre-auth stack overflow

🗓️ 09 Jun 2026 22:43:44Reported by mongodbType 
cvelist
 cvelist
🔗 www.cve.org👁 76 Views

CVE-2026-9740 causes pre-auth stack overflow in MongoDB due to unbounded BSON validation recursion.

Related
Affected
Refs
ReporterTitlePublishedViews
Family
bdu_fstec
BDU FSTEC
MongoDB BSON Document Verification DoS
25 Sep 202600:00
–bdu_fstec
circl
Circl
CVE-2026-9740
10 Jun 202600:00
–circl
cnnvd
CNNVD
MongoDB Server security vulnerabilities
9 Jun 202600:00
–cnnvd
cve
CVE
CVE-2026-9740
9 Jun 202622:43
–cve
debiancve
Debian CVE
CVE-2026-9740
29 Oct 202617:05
–debiancve
euvd
EUVD
EUVD-2026-35857
10 Jun 202600:31
–euvd
mend
Mend
CVE-2026-9740
9 Jun 202622:43
–mend
mongodb
MongoDB
Unbounded recursion in BSONColumn interleaved-reference causes pre-auth stack overflow
9 Jun 202622:43
–mongodb
nessus
Tenable Nessus
MongoDB 7.0.x < 7.0.35 / 8.0.x < 8.0.24 / 8.2.x < 8.2.10 / 8.3.x < 8.3.3 Multiple Vulnerabilities
12 Jun 202600:00
–nessus
nessus
Tenable Nessus
Linux Distros Unpatched Vulnerability : CVE-2026-9740
12 Jun 202600:00
–nessus
Rows per page
[
  {
    "vendor": "MongoDB",
    "product": "MongoDB Server",
    "versions": [
      {
        "status": "affected",
        "version": "8.3.0",
        "lessThan": "8.3.3",
        "versionType": "custom"
      },
      {
        "status": "affected",
        "version": "8.2.0",
        "lessThan": "8.2.10",
        "versionType": "custom"
      },
      {
        "status": "affected",
        "version": "8.0.0",
        "lessThan": "8.0.24",
        "versionType": "custom"
      },
      {
        "status": "affected",
        "version": "7.0.0",
        "lessThan": "7.0.35",
        "versionType": "custom"
      }
    ],
    "defaultStatus": "unaffected"
  }
]

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09 Jun 2026 22:43Current
CVSS 3.17.5
CVSS 48.7
EPSS0.00345
SSVC
76