CVE-2026-114645

Source
https://cve.org/CVERecord?id=CVE-2026-114645
Import Source
https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-114645.json
JSON Data
https://api.osv.dev/v1/vulns/CVE-2026-114645
Aliases
  • GHSA-g9mw-2cwh-6hh9
Downstream
Related
Published
2026-10-22T19:13:49Z
Modified
2026-11-02T12:26:58Z
Severity
  • 5.7 (Medium) CVSS_V4 - CVSS:4.0/AV:L/AC:H/AT:P/PR:H/UI:N/VC:L/VI:L/VA:H/SC:N/SI:N/SA:N CVSS Calculator
Summary
Heap overflow via 32-bit length wrap of the URI username in Windows Kerberos auth message wrapping
Details

A 32-bit integer wraparound in the MongoDB C Driver's Windows-only Kerberos/SSPI authentication code can cause an undersized heap buffer to be allocated when an excessively long credential value is supplied in the client's connection configuration. A party able to control that client-side configuration, in conjunction with the affected authentication mechanism, can cause the driver to write outside the bounds of the allocated buffer. This may result in corruption of client process memory and denial of service of the client application. The issue affects only client builds compiled with the Windows-native authentication backend.

Database specific
{
    "cna_assigner": "mongodb",
    "cwe_ids": [
        "CWE-190"
    ],
    "osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/114xxx/CVE-2026-114645.json"
}
References

Affected packages

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

Affected ranges

Type
GIT
Repo
https://github.com/mongodb/mongo-c-driver
Events
Database specific
Show details
{
    "extracted_events": [
        {
            "range": [
                {
                    "introduced": "1.6.0"
                },
                {
                    "fixed": "1.30.14"
                }
            ],
            "source": "AFFECTED_FIELD",
            "strategy": "StandardRange"
        },
        {
            "range": [
                {
                    "introduced": "2.0.0"
                },
                {
                    "fixed": "2.5.7"
                }
            ],
            "source": "AFFECTED_FIELD",
            "strategy": "StandardRange"
        },
        {
            "original_tag": "1.30.14",
            "range": [
                {
                    "fixed": "82ce717b3dd288886589916220c712d9d115363e"
                }
            ],
            "source": "REFERENCES_TAG"
        },
        {
            "original_tag": "2.5.7",
            "range": [
                {
                    "fixed": "c0f0976d83ca672e712c954e8b16b8d1222fbacb"
                }
            ],
            "source": "REFERENCES_TAG"
        }
    ]
}

Affected versions

1.*
1.11.0
1.30.0
1.30.1
1.30.10
1.30.11
1.30.12
1.30.13
1.30.2
1.30.3
1.30.4
1.30.5
1.30.6
1.30.7
1.30.8
1.30.9
1.6.0
1.7.0-rc0
1.9.0-rc0
1.9.0-rc1
2.*
2.5.0
2.5.1
2.5.2
2.5.3
2.5.4
2.5.5
2.5.6

Database specific

source
"https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-114645.json"