CVE-2026-82056

Source
https://cve.org/CVERecord?id=CVE-2026-82056
Import Source
https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-82056.json
JSON Data
https://api.osv.dev/v1/vulns/CVE-2026-82056
Aliases
Downstream
Published
2026-09-08T16:12:18Z
Modified
2026-09-18T08:11:05Z
Severity
  • 6.0 (Medium) CVSS_V4 - CVSS:4.0/AV:N/AC:H/AT:P/PR:L/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N CVSS Calculator
Summary
Race Condition in MongoDB Server Text Index Query Parsing Leads to Heap Use-After-Free and Denial of Service
Details

A race condition in MongoDB server's text index query parsing can cause a heap use-after-free read when handling upsert retry paths. Under certain concurrent index lifecycle operations, a raw pointer to internal text index metadata may be dereferenced after the underlying structures have been freed, leading to a server crash. An authenticated user with readWrite privileges can trigger this condition through specific concurrent text-search and index management operations, resulting in denial of service for all connected clients. This

Database specific
{
    "cna_assigner": "mongodb",
    "cwe_ids": [
        "CWE-416"
    ],
    "osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/82xxx/CVE-2026-82056.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-2026-82056.json"
vanir_signatures
[
    {
        "deprecated": false,
        "digest": {
            "line_hashes": [
                "66908565863182878949263117251652046873",
                "81045179624099588995371526936867447218",
                "40887363166120728720864979839570738440",
                "256732394880312722171336173841003327192",
                "189479856184880563329078480903896694545",
                "175148206283301428432002867622286913085",
                "305665546638865113923099657246304323513"
            ],
            "threshold": 0.9
        },
        "id": "CVE-2026-82056-7518edcc",
        "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-2026-82056-77577a26",
        "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",
                "136501663843339022690751043996234207290",
                "285354211900527027711069075030245862327",
                "118881528740665335694743800161340085998",
                "36266064472550105418329813861525007356",
                "16931947150780577515020757191522828473"
            ],
            "threshold": 0.9
        },
        "id": "CVE-2026-82056-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",
                "287039910505335082692569496912566155170",
                "215343628858689419312915919625353446408",
                "80950900741330922061414046051663341667",
                "48699755411854371597904640594615452680",
                "299434378678909034395123214857676742507",
                "320443038501231526517453934170620795671",
                "37185450870766536639064978090208934675",
                "330071214781083562802997609052830790317",
                "112905490564973162584994830096370086935"
            ],
            "threshold": 0.9
        },
        "id": "CVE-2026-82056-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
"2026-09-18T08:11:05Z"