CVE-2026-82066

Source
https://cve.org/CVERecord?id=CVE-2026-82066
Import Source
https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-82066.json
JSON Data
https://api.osv.dev/v1/vulns/CVE-2026-82066
Aliases
Downstream
Published
2026-09-08T16:12:26Z
Modified
2026-09-18T08:11:07Z
Severity
  • 5.3 (Medium) CVSS_V4 - CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:L/VI:N/VA:N/SC:N/SI:N/SA:N CVSS Calculator
Summary
Heap Out-of-Bounds Read in MongoDB Server Query Planning Component
Details

A heap out-of-bounds read security issue exists in the query planning component of MongoDB Server. An authenticated user with database read and write privileges can trigger the security issue through crafted query operations, causing the server to read memory beyond allocated buffer boundaries. The revealed memory contents may be partially observable through diagnostic query statistics output.

Database specific
{
    "cna_assigner": "mongodb",
    "cwe_ids": [
        "CWE-125"
    ],
    "osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/82xxx/CVE-2026-82066.json",
    "unresolved_ranges": [
        {
            "extracted_events": [
                {
                    "introduced": "8.3.0"
                },
                {
                    "fixed": "8.3.9"
                },
                {
                    "introduced": "8.0.0"
                },
                {
                    "fixed": "8.0.30"
                },
                {
                    "introduced": "7.0.0"
                },
                {
                    "fixed": "7.0.41"
                }
            ],
            "source": "AFFECTED_FIELD"
        }
    ]
}
References

Affected packages

Git / github.com/mongodb/mongo

Affected ranges

Type
GIT
Repo
https://github.com/mongodb/mongo
Events
Database specific
Show details
{
    "cpe": "cpe:2.3:a:mongodb:mongodb:*:*:*:*:-:*:*:*",
    "extracted_events": [
        {
            "introduced": "7.0.0"
        },
        {
            "fixed": "7.0.41"
        },
        {
            "introduced": "8.0.0"
        },
        {
            "fixed": "8.0.30"
        },
        {
            "introduced": "8.3.0"
        },
        {
            "fixed": "8.3.9"
        }
    ],
    "source": "CPE_RANGE"
}

Affected versions

r7.*
r7.0.0
r7.0.1
r7.0.1-rc0
r7.0.10
r7.0.10-rc0
r7.0.11
r7.0.11-rc0
r7.0.11-rc1
r7.0.11-rc2
r7.0.12
r7.0.12-rc0
r7.0.12-rc1
r7.0.13
r7.0.13-rc0
r7.0.13-rc1
r7.0.14
r7.0.14-rc0
r7.0.15
r7.0.15-rc0
r7.0.15-rc1
r7.0.16
r7.0.16-rc0
r7.0.16-rc1
r7.0.17
r7.0.18
r7.0.2
r7.0.2-rc0
r7.0.2-rc1
r7.0.2-rc2
r7.0.21
r7.0.21-alpha0
r7.0.21-rc0
r7.0.22
r7.0.22-rc0
r7.0.23
r7.0.23-rc0
r7.0.23-rc1
r7.0.24
r7.0.24-rc0
r7.0.25-alpha0
r7.0.26
r7.0.26-rc0
r7.0.27
r7.0.27-alpha0
r7.0.27-rc0
r7.0.3
r7.0.3-rc0
r7.0.3-rc1
r7.0.35
r7.0.4
r7.0.4-rc0
r7.0.5
r7.0.5-rc0
r7.0.6
r7.0.6-rc0
r7.0.7
r7.0.7-rc0
r7.0.7-rc1
r7.0.7-rc2
r7.0.8
r7.0.8-rc0
r7.0.9
r7.0.9-rc0
r7.0.9-rc1
r8.*
r8.0.0
r8.0.1
r8.0.1-rc0
r8.0.10
r8.0.10-rc0
r8.0.12
r8.0.12-rc0
r8.0.13
r8.0.13-rc0
r8.0.13-rc1
r8.0.13-rc2
r8.0.14
r8.0.14-rc0
r8.0.14-rc1
r8.0.16
r8.0.16-rc0
r8.0.16-rc1
r8.0.17-alpha0
r8.0.2
r8.0.24
r8.0.3
r8.0.4
r8.0.4-rc0
r8.0.5
r8.0.5-rc0
r8.0.5-rc1
r8.0.5-rc2
r8.0.6
r8.3.0
r8.3.3

Database specific

source
"https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-82066.json"
vanir_signatures
[
    {
        "deprecated": false,
        "digest": {
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            ],
            "threshold": 0.9
        },
        "id": "CVE-2026-82066-7518edcc",
        "signature_type": "Line",
        "signature_version": "v1",
        "source": "https://github.com/mongodb/mongo/commit/11c3ed7c274d5fb7149e498323bd0377c3a2876e",
        "target": {
            "file": "src/mongo/util/observable_mutex_registry.cpp"
        }
    },
    {
        "deprecated": false,
        "digest": {
            "function_hash": "97328004591881352222915931748724594831",
            "length": 772
        },
        "id": "CVE-2026-82066-77577a26",
        "signature_type": "Function",
        "signature_version": "v1",
        "source": "https://github.com/mongodb/mongo/commit/6df23543fc9e7ee456ff05ed726b22865ea753e7",
        "target": {
            "file": "src/mongo/db/pipeline/document_source_list_catalog.cpp",
            "function": "DocumentSourceListCatalog::createFromBson"
        }
    },
    {
        "deprecated": false,
        "digest": {
            "line_hashes": [
                "165410231648936824589980198196954162537",
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                "285354211900527027711069075030245862327",
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            ],
            "threshold": 0.9
        },
        "id": "CVE-2026-82066-ba1994eb",
        "signature_type": "Line",
        "signature_version": "v1",
        "source": "https://github.com/mongodb/mongo/commit/6df23543fc9e7ee456ff05ed726b22865ea753e7",
        "target": {
            "file": "src/mongo/db/pipeline/document_source_list_catalog.h"
        }
    },
    {
        "deprecated": false,
        "digest": {
            "line_hashes": [
                "15118513725026685067664956440423785894",
                "4881464334735159279508803095757659276",
                "266758334235923098891166228361922998690",
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                "112905490564973162584994830096370086935"
            ],
            "threshold": 0.9
        },
        "id": "CVE-2026-82066-c539edfe",
        "signature_type": "Line",
        "signature_version": "v1",
        "source": "https://github.com/mongodb/mongo/commit/6df23543fc9e7ee456ff05ed726b22865ea753e7",
        "target": {
            "file": "src/mongo/db/pipeline/document_source_list_catalog.cpp"
        }
    }
]
vanir_signatures_modified
"2026-09-18T08:11:07Z"