CVE-2020-7926

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Source
https://cve.org/CVERecord?id=CVE-2020-7926
Import Source
https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2020-7926.json
JSON Data
https://api.osv.dev/v1/vulns/CVE-2020-7926
Aliases
Published
2020-11-23T15:15:11Z
Modified
2026-10-20T14:05:21Z
Severity
  • 6.5 (Medium) CVSS_V3 - CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H CVSS Calculator
Summary
[none]
Details

A user authorized to perform database queries may cause denial of service by issuing a specially crafted query which violates an invariant in the server selection subsystem. This issue affects MongoDB Server v4.4 versions prior to 4.4.1. Versions before 4.4 are not affected.

Database specific 
{
    "unresolved_ranges":  [
        {
            "cpes":  [
                "cpe:2.3:a:mongodb:mongodb:*:*:*:*:*:*:*:*"
            ],
            "extracted_events":  [
                {
                    "range":  [
                        {
                            "introduced":  "4.4.0"
                        },
                        {
                            "fixed":  "4.4.1"
                        }
                    ],
                    "source":  "CPE_RANGE"
                }
            ],
            "vendor_product":  "mongodb:mongodb"
        }
    ]
}
References

Affected packages

Git / github.com/mongodb/mongo

Affected ranges

Type
GIT
Repo
https://github.com/mongodb/mongo
Events
Introduced
563487e100c4215e2dce98d0af2a6a5a2d67c5cf
Fixed
ad91a93a5a31e175f5cbf8c69561e788bbc55ce1
Database specific
Show details 
{
    "extracted_events":  [
        {
            "cpe":  "cpe:2.3:a:mongodb:mongodb:*:*:*:*:*:*:*:*",
            "range":  [
                {
                    "introduced":  "4.4.0"
                },
                {
                    "fixed":  "4.4.1"
                }
            ],
            "source":  "CPE_RANGE"
        }
    ]
}

Affected versions

r4.*
r4.4.0
r4.4.1-rc0
r4.4.1-rc1
r4.4.1-rc2

Database specific

source 
"https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2020-7926.json"
vanir_signatures 
[
    {
        "deprecated":  false,
        "digest":  {
            "function_hash":  "151262211054760185720127152001316281250",
            "length":  5307
        },
        "id":  "CVE-2020-7926-2d37e6c3",
        "signature_type":  "Function",
        "signature_version":  "v1",
        "source":  "https://github.com/mongodb/mongo/commit/ad91a93a5a31e175f5cbf8c69561e788bbc55ce1",
        "target":  {
            "file":  "src/third_party/wiredtiger/src/txn/txn_recover.c",
            "function":  "__wt_txn_recover"
        }
    },
    {
        "deprecated":  false,
        "digest":  {
            "function_hash":  "222802404687574253373945116552049107396",
            "length":  595
        },
        "id":  "CVE-2020-7926-6ed27bda",
        "signature_type":  "Function",
        "signature_version":  "v1",
        "source":  "https://github.com/mongodb/mongo/commit/ad91a93a5a31e175f5cbf8c69561e788bbc55ce1",
        "target":  {
            "file":  "src/third_party/wiredtiger/src/txn/txn_recover.c",
            "function":  "__recovery_file_scan"
        }
    },
    {
        "deprecated":  false,
        "digest":  {
            "line_hashes":  [
                "277395883631913544235843059429904341778",
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                "156593639150803104870368656550091158247",
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                "89153525433556070057976587890049189048"
            ],
            "threshold":  0.9
        },
        "id":  "CVE-2020-7926-98d23718",
        "signature_type":  "Line",
        "signature_version":  "v1",
        "source":  "https://github.com/mongodb/mongo/commit/ad91a93a5a31e175f5cbf8c69561e788bbc55ce1",
        "target":  {
            "file":  "src/third_party/wiredtiger/src/txn/txn_recover.c"
        }
    }
]
vanir_signatures_modified 
"2026-10-20T14:05:21Z"