Vulnerability-Lookup

Vulnerability from bitnami_vulndb

Published

2026-02-26 08:47

Modified

2026-02-26 09:13

Summary

Mongod can run out of stack memory when expressions create deeply nested documents

Details

MongoDB Server may experience an out-of-memory failure while evaluating expressions that produce deeply nested documents. The issue arises in recursive functions because the server does not periodically check the depth of the expression.

JSON

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{
  "affected": [
    {
      "package": {
        "ecosystem": "Bitnami",
        "name": "mongodb",
        "purl": "pkg:bitnami/mongodb"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "7.0.0"
            },
            {
              "fixed": "7.0.29"
            },
            {
              "introduced": "8.0.0"
            },
            {
              "fixed": "8.0.18"
            },
            {
              "introduced": "8.2.0"
            },
            {
              "fixed": "8.2.2"
            }
          ],
          "type": "SEMVER"
        }
      ],
      "severity": [
        {
          "score": "CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N/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:X",
          "type": "CVSS_V4"
        }
      ]
    }
  ],
  "aliases": [
    "CVE-2026-1849"
  ],
  "database_specific": {
    "cpes": [
      "cpe:2.3:a:mongodb:mongodb:*:*:*:*:*:*:*:*"
    ],
    "severity": "High"
  },
  "details": "MongoDB Server may experience an out-of-memory failure while evaluating expressions that produce deeply nested documents. The issue arises in recursive functions because the server does not periodically check the depth of the expression.",
  "id": "BIT-mongodb-2026-1849",
  "modified": "2026-02-26T09:13:58.886Z",
  "published": "2026-02-26T08:47:41.788Z",
  "references": [
    {
      "type": "WEB",
      "url": "https://jira.mongodb.org/browse/SERVER-102364"
    },
    {
      "type": "WEB",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-1849"
    }
  ],
  "schema_version": "1.6.2",
  "summary": "Mongod can run out of stack memory when expressions create deeply nested documents"
}

CVE-2026-1849 (GCVE-0-2026-1849)

Vulnerability from cvelistv5 – Published: 2026-02-10 18:52 – Updated: 2026-02-10 19:17

Title

Mongod can run out of stack memory when expressions create deeply nested documents

Summary

Severity ?

7.1 (High)


                        
                          CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N

6.5 (Medium)


                        
                          CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H

CWE

CWE-674 - Uncontrolled Recursion

Assigner

mongodb

References

URL

Tags

https://jira.mongodb.org/browse/SERVER-102364

Impacted products

	Vendor	Product	Version
	MongoDB Inc	MongoDB Server	Affected: 8.0 , < 8.0.18 (semver) Affected: 7.0 , < 7.0.29 (semver) Affected: 8.2 , < 8.2.2 (semver)

Show details on NVD website

JSON

To clipboard

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  "containers": {
    "adp": [
      {
        "metrics": [
          {
            "other": {
              "content": {
                "id": "CVE-2026-1849",
                "options": [
                  {
                    "Exploitation": "none"
                  },
                  {
                    "Automatable": "no"
                  },
                  {
                    "Technical Impact": "partial"
                  }
                ],
                "role": "CISA Coordinator",
                "timestamp": "2026-02-10T19:16:27.778333Z",
                "version": "2.0.3"
              },
              "type": "ssvc"
            }
          }
        ],
        "providerMetadata": {
          "dateUpdated": "2026-02-10T19:17:02.296Z",
          "orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
          "shortName": "CISA-ADP"
        },
        "title": "CISA ADP Vulnrichment"
      }
    ],
    "cna": {
      "affected": [
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          "defaultStatus": "unaffected",
          "product": "MongoDB Server",
          "vendor": "MongoDB Inc",
          "versions": [
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              "lessThan": "8.0.18",
              "status": "affected",
              "version": "8.0",
              "versionType": "semver"
            },
            {
              "lessThan": "7.0.29",
              "status": "affected",
              "version": "7.0",
              "versionType": "semver"
            },
            {
              "lessThan": "8.2.2",
              "status": "affected",
              "version": "8.2",
              "versionType": "semver"
            }
          ]
        }
      ],
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              "type": "text/html",
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            }
          ],
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      ],
      "metrics": [
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            "Recovery": "NOT_DEFINED",
            "Safety": "NOT_DEFINED",
            "attackComplexity": "LOW",
            "attackRequirements": "NONE",
            "attackVector": "NETWORK",
            "baseScore": 7.1,
            "baseSeverity": "HIGH",
            "exploitMaturity": "NOT_DEFINED",
            "privilegesRequired": "LOW",
            "providerUrgency": "NOT_DEFINED",
            "subAvailabilityImpact": "NONE",
            "subConfidentialityImpact": "NONE",
            "subIntegrityImpact": "NONE",
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            "valueDensity": "NOT_DEFINED",
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            "vulnAvailabilityImpact": "HIGH",
            "vulnConfidentialityImpact": "NONE",
            "vulnIntegrityImpact": "NONE",
            "vulnerabilityResponseEffort": "NOT_DEFINED"
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          "scenarios": [
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              "lang": "en",
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            "confidentialityImpact": "NONE",
            "integrityImpact": "NONE",
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            "userInteraction": "NONE",
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      "problemTypes": [
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      "providerMetadata": {
        "dateUpdated": "2026-02-10T18:52:52.737Z",
        "orgId": "a39b4221-9bd0-4244-95fc-f3e2e07f1deb",
        "shortName": "mongodb"
      },
      "references": [
        {
          "url": "https://jira.mongodb.org/browse/SERVER-102364"
        }
      ],
      "source": {
        "discovery": "UNKNOWN"
      },
      "title": "Mongod can run out of stack memory when expressions create deeply nested documents",
      "x_generator": {
        "engine": "Vulnogram 0.5.0"
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  "cveMetadata": {
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    "assignerShortName": "mongodb",
    "cveId": "CVE-2026-1849",
    "datePublished": "2026-02-10T18:52:52.737Z",
    "dateReserved": "2026-02-03T18:21:52.859Z",
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Sightings

Author	Source	Type	Date

Nomenclature

Seen: The vulnerability was mentioned, discussed, or observed by the user.
Confirmed: The vulnerability has been validated from an analyst's perspective.
Published Proof of Concept: A public proof of concept is available for this vulnerability.
Exploited: The vulnerability was observed as exploited by the user who reported the sighting.
Patched: The vulnerability was observed as successfully patched by the user who reported the sighting.
Not exploited: The vulnerability was not observed as exploited by the user who reported the sighting.
Not confirmed: The user expressed doubt about the validity of the vulnerability.
Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.

Detection rules are retrieved from Rulezet.

Action not permitted

Vulnerability from bitnami_vulndb

CVE-2026-1849 (GCVE-0-2026-1849)

Tags

Sightings

Nomenclature