CVE-2026-84965
- Source
- https://cve.org/CVERecord?id=CVE-2026-84965
- Import Source
- https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-84965.json
- JSON Data
- https://api.osv.dev/v1/vulns/CVE-2026-84965
- Downstream
- Related
- Published
- 2026-09-03T15:01:21Z
- Modified
- 2026-09-24T03:46:34Z
- Severity
-
- 5.9 (Medium) CVSS_V4 - CVSS:4.0/AV:L/AC:H/AT:P/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N CVSS Calculator
- Summary
- Heap write primitive via size round-up wrap during JSON parsing on 32-bit builds
- Details
-
An integer wraparound in an allocation size calculation in the BSON library's JSON parsing code can cause a buffer to be released while a following copy operation still writes through the stale pointer. On builds where sizes are 32 bits, an unauthenticated party able to supply a sufficiently large JSON input to an application that links the library may cause that application to terminate unexpectedly, resulting in denial of service.
- Database specific
{ "cna_assigner": "mongodb", "cwe_ids": [ "CWE-190" ], "osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/84xxx/CVE-2026-84965.json", "unresolved_ranges": [ { "extracted_events": [ { "introduced": "1.10.0" }, { "fixed": "1.30.9" }, { "introduced": "2.0.0" }, { "fixed": "2.5.2" } ], "source": "AFFECTED_FIELD" } ] }- 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
{ "cpe": "cpe:2.3:a:mongodb:c_driver:*:*:*:*:*:mongodb:*:*", "extracted_events": [ { "introduced": "1.10.0" }, { "fixed": "1.30.9" }, { "introduced": "2.0.0" }, { "fixed": "2.5.2" } ], "source": "CPE_RANGE" }