CVE-2026-106433

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Source

https://cve.org/CVERecord?id=CVE-2026-106433

Import Source

https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-106433.json

JSON Data

https://api.osv.dev/v1/vulns/CVE-2026-106433

Downstream

Published

2026-10-08T18:55:34Z

Modified

2026-10-29T02:48:34Z

Severity

8.7 (High) CVSS_V4 - CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N CVSS Calculator

Summary

Heap corruption via duplicate masterKey fields in MongoDB libmongocrypt

Details

Improper state management in MongoDB libmongocrypt can cause provider-specific data to be treated as an incompatible type when cleaning up a key document containing duplicate masterKey fields. An authenticated actor who can modify key vault documents, or a server that returns such a key document, can cause invalid memory access and invalid frees in the client process. This can terminate the application or corrupt process memory.

Database specific

{
    "cna_assigner":  "mongodb",
    "cwe_ids":  [
        "CWE-843"
    ],
    "osv_generated_from":  "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/106xxx/CVE-2026-106433.json",
    "unresolved_ranges":  [
        {
            "extracted_events":  [
                {
                    "range":  [
                        {
                            "introduced":  "1.1.0"
                        },
                        {
                            "fixed":  "1.20.5"
                        }
                    ],
                    "source":  "AFFECTED_FIELD",
                    "strategy":  "StandardRange"
                }
            ]
        }
    ]
}

References

Affected packages

Git / github.com/mongodb/libmongocrypt

Affected ranges

Type

GIT

Repo

https://github.com/mongodb/libmongocrypt

Events

Introduced

86d80e2b8d79d432fc0befc38d1bbdb73a4d7795

Fixed

f2158c3304df5ecdd7853e74b6c96a7bba96a11f

Database specific

Show details

{
    "extracted_events":  [
        {
            "cpe":  "cpe:2.3:a:mongodb:libmongocrypt:*:*:*:*:*:*:*:*",
            "range":  [
                {
                    "introduced":  "1.5.0"
                },
                {
                    "fixed":  "1.20.5"
                }
            ],
            "source":  "CPE_RANGE"
        }
    ]
}

Affected versions

1.*

1.10.0b0

1.10.0b1

1.20.0

1.20.1

1.20.2

1.20.3

1.20.4

1.8.0-alpha0

1.8.0-alpha1

csharp-v1.*

csharp-v1.10.0

csharp-v1.11.0

csharp-v1.8.0

csharp-v1.8.0-alpha.0

csharp-v1.8.1

csharp-v1.8.2

csharp-v1.9.0

java-1.*

java-1.11.0

java-1.8.0-alpha0

node-v2.*

node-v2.4.0

node-v2.5.0

node-v2.6.0

node-v2.6.0-alpha.0

node-v2.7.0

node-v2.7.0-alpha.0

node-v2.7.1

node-v2.8.0

node-v2.8.0-alpha.0

node-v2.9.0

node-v6.*

node-v6.0.0

node-v6.0.0-alpha.2

node-v6.0.0-alpha.3

node-v6.0.1

pymongocrypt-1.*

pymongocrypt-1.10.0

pymongocrypt-1.10.1

pymongocrypt-1.11.0

pymongocrypt-1.12.0

pymongocrypt-1.12.1

pymongocrypt-1.12.2

pymongocrypt-1.12.2rc1

pymongocrypt-1.12.2rc2

pymongocrypt-1.12.2rc4

pymongocrypt-1.13.0

pymongocrypt-1.14.0

pymongocrypt-1.14.1

pymongocrypt-1.15.0

pymongocrypt-1.15.1

pymongocrypt-1.16.0

pymongocrypt-1.17.0

pymongocrypt-1.18.0

pymongocrypt-1.18.0.dev0

pymongocrypt-1.18.1

pymongocrypt-1.2.2rc0

pymongocrypt-1.5.0

pymongocrypt-1.5.1

pymongocrypt-1.5.2

pymongocrypt-1.6.0

pymongocrypt-1.6.1

pymongocrypt-1.7.0

pymongocrypt-1.8.0

pymongocrypt-1.9.0

pymongocrypt-1.9.1

Database specific

source

"https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-106433.json"