CVE-2026-96747

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Source
https://cve.org/CVERecord?id=CVE-2026-96747
Import Source
https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-96747.json
JSON Data
https://api.osv.dev/v1/vulns/CVE-2026-96747
Aliases
  • GHSA-qx36-8mw2-4r3x
Downstream
Published
2026-09-24T18:18:10Z
Modified
2026-09-26T08:07:53Z
Severity
  • 5.3 (Medium) CVSS_V4 - CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:N/VI:N/VA:N/SC:L/SI:N/SA:N CVSS Calculator
Summary
Forced local Unix socket connection via dot-sock KMS endpoint in client-side field encryption
Details

The client-side field level encryption support in the MongoDB Python Driver can treat a key management endpoint value ending in ".sock" as a local Unix domain socket path rather than a remote host. A user with write access to the encryption key metadata stored in the database can cause an application using the driver to open connections to local sockets on the application host. Data sent over these connections is limited to the start of a TLS handshake, so no chosen content is transmitted.

Database specific 
{
    "cna_assigner":  "mongodb",
    "cwe_ids":  [
        "CWE-918"
    ],
    "osv_generated_from":  "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/96xxx/CVE-2026-96747.json",
    "unresolved_ranges":  [
        {
            "extracted_events":  [
                {
                    "introduced":  "3.9.0"
                },
                {
                    "fixed":  "4.18.2"
                }
            ],
            "source":  "AFFECTED_FIELD"
        }
    ]
}
References

Affected packages

Git / github.com/mongodb/mongo-python-driver

Affected ranges

Type
GIT
Repo
https://github.com/mongodb/mongo-python-driver
Events
Introduced
0 Unknown introduced commit / All previous commits are affected
Fixed
640dd2383a1a2fb1a10e5222d50ebc0b22a61bd7
Database specific
Show details 
{
    "source":  "REFERENCES"
}

Affected versions

0.*
0.10
0.10.1
0.10.2
0.10.3
0.11
0.11.1
0.11.2
0.11.3
0.12
0.13
0.14
0.14.1
0.14.2
0.15
0.15.1
0.15.2
0.16
0.4pre
0.5.1pre
0.5.2pre
0.5.3pre
0.5pre
0.6
0.7
0.7.1
0.7.2
0.8
0.8.1
0.9
0.9.1
0.9.2
0.9.3
0.9.4
0.9.5
1.*
1.0
1.1
1.1.1
1.1.2
1.10
1.10.1
1.11
1.2
1.2.1
1.3
1.4
1.5
1.5.1
1.6
1.7
1.8
1.8.1
1.9
2.*
2.0
2.0.1
2.1
2.1.1
2.2
2.2.1
2.2rc1
2.3
2.3rc1
2.4
2.4.1
2.4.2
2.5
2.5.1
2.6
2.7
2.7rc0
2.7rc1
3.*
3.0
3.0.1
3.0.2
3.0.3
3.0b0
3.0b1
3.0rc0
3.0rc1
3.1
3.1.1
3.10.0
3.10.1
3.11.0
3.11.0b0
3.11.0b1
3.11.0rc0
3.11.1
3.1rc0
3.2
3.2.1
3.2.2
3.2rc0
3.3.0
3.4.0
3.4rc0
3.5.0
3.5.1
3.6.0
3.6.1
3.6rc0
3.7.0
3.7.0b0
3.9.0
3.9.0b0
3.9.0b1
4.*
4.0
4.1.0
4.1.1
4.10.0
4.10.1
4.11
4.12.0
4.13.0
4.13.0.dev0
4.13.0.dev1
4.15.0
4.15.1
4.16.0
4.16.0.dev0
4.18.0
4.18.1
4.2.0
4.2.0b0
4.3.0
4.3.1
4.3.2
4.3.3
4.4.0
4.4.0b0
4.5.0
4.6.0
4.7.0
4.7.1
4.9
4.9.1

Database specific

source 
"https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-96747.json"
vanir_signatures 
[
    {
        "deprecated":  false,
        "digest":  {
            "line_hashes":  [
                "313937259246690792033577136582351186585",
                "234329394194398214755767972931697391149",
                "205556081000686217523895440862638542136",
                "302023848532793530739864523738009957657",
                "229744238530264298010148702012829395894",
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                "61373660942318224200464922469282204245",
                "1377657727013732018681638084855295901",
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                "49150128683341948243584376855512715628",
                "282432437761933900027570562394692470410",
                "161491051014087500058901029099508351084",
                "79846178355188504907962075812862958840",
                "339487331988713150960607797990096285080"
            ],
            "threshold":  0.9
        },
        "id":  "CVE-2026-96747-5d3a46dc",
        "signature_type":  "Line",
        "signature_version":  "v1",
        "source":  "https://github.com/mongodb/mongo-python-driver/commit/640dd2383a1a2fb1a10e5222d50ebc0b22a61bd7",
        "target":  {
            "file":  "bson/buffer.c"
        }
    },
    {
        "deprecated":  false,
        "digest":  {
            "function_hash":  "306396228315852703488053070048897984029",
            "length":  295
        },
        "id":  "CVE-2026-96747-ccd4fb31",
        "signature_type":  "Function",
        "signature_version":  "v1",
        "source":  "https://github.com/mongodb/mongo-python-driver/commit/640dd2383a1a2fb1a10e5222d50ebc0b22a61bd7",
        "target":  {
            "file":  "bson/buffer.c",
            "function":  "buffer_assure_space"
        }
    }
]
vanir_signatures_modified 
"2026-09-26T08:07:53Z"