CVE-2026-84969
- Source
- https://cve.org/CVERecord?id=CVE-2026-84969
- Import Source
- https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-84969.json
- JSON Data
- https://api.osv.dev/v1/vulns/CVE-2026-84969
- Downstream
- Related
- Published
- 2026-09-03T14:59:01Z
- Modified
- 2026-09-12T03:47:35Z
- Severity
-
- 6.3 (Medium) CVSS_V4 - CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:N/VC:N/VI:L/VA:N/SC:N/SI:N/SA:N CVSS Calculator
- Summary
- Heap overflow via truncated base64 encoding of binary fields in length-limited JSON output
- Details
-
A memory-handling error in the BSON-to-JSON conversion helpers of the MongoDB C Driver can write a small number of bytes past the end of a heap buffer when a binary field is encoded and the output is cut short at a caller-configured length limit. A party who supplies the document content, with no privileges on the application that links the driver, may cause a small amount of data outside the intended buffer to be altered.
- Database specific
{ "cna_assigner": "mongodb", "cwe_ids": [ "CWE-787" ], "osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/84xxx/CVE-2026-84969.json", "unresolved_ranges": [ { "extracted_events": [ { "introduced": "1.30.0" }, { "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": "1.30.0" }, { "fixed": "1.30.9" }, { "introduced": "2.0.0" }, { "fixed": "2.5.2" } ], "source": "CPE_RANGE" }