CVE-2026-18692
- Source
- https://cve.org/CVERecord?id=CVE-2026-18692
- Import Source
- https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-18692.json
- JSON Data
- https://api.osv.dev/v1/vulns/CVE-2026-18692
- Aliases
- Downstream
- Published
- 2026-08-11T18:36:54Z
- Modified
- 2026-09-18T08:14:43Z
- Severity
-
- 7.7 (High) CVSS_V4 - CVSS:4.0/AV:N/AC:L/AT:P/PR:L/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N CVSS Calculator
- Summary
- Use-After-Free in MongoDB Timeseries Bucket Handling Leads to Denial of Service and Potential Remote Code Execution
- Details
-
An issue in MongoDB Server's handling of timeseries bucket lifecycle could allow an authenticated user with write privileges to cause an internal reference to be used after the underlying memory has been freed. Subsequent operations could then result in a server crash or, potentially, execution of unintended code.
- Database specific
{ "cna_assigner": "mongodb", "cwe_ids": [ "CWE-416" ], "osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/18xxx/CVE-2026-18692.json", "unresolved_ranges": [ { "extracted_events": [ { "introduced": "8.3.0" }, { "fixed": "8.3.8" } ], "source": "AFFECTED_FIELD" } ] }- References
Affected packages
Git / github.com/mongodb/mongo
Affected ranges
- Type
- GIT
- Repo
- https://github.com/mongodb/mongo
- Events
-
IntroducedFixedIntroducedLast AffectedIntroducedFixedIntroducedLast Affected
- Database specific
-
Show details
{ "cpe": [ "cpe:2.3:a:mongodb:mongodb:*:*:*:*:*:*:*:*", "cpe:2.3:a:mongodb:mongodb:9.0.0:alpha0:*:*:-:-:*:*", "cpe:2.3:a:mongodb:mongodb:9.0.0:alpha1:*:*:-:-:*:*", "cpe:2.3:a:mongodb:mongodb:9.1.0:alpha0:*:*:-:-:*:*" ], "extracted_events": [ { "introduced": "8.0.0" }, { "fixed": "8.0.29" }, { "introduced": "8.2.0" }, { "last_affected": "8.2.12" }, { "introduced": "8.3.0" }, { "fixed": "8.3.8" }, { "introduced": "9.0.0-alpha0" }, { "last_affected": "9.0.0-alpha0" }, { "introduced": "9.0.0-alpha1" }, { "last_affected": "9.0.0-alpha1" }, { "introduced": "9.1.0-alpha0" }, { "last_affected": "9.1.0-alpha0" } ], "source": [ "CPE_RANGE", "CPE_STRING" ] }
Affected versions
9.*
9.0.0-alpha0
9.0.0-alpha1
9.1.0-alpha0
r8.*
r8.0.0
r8.0.1
r8.0.1-rc0
r8.0.10
r8.0.10-rc0
r8.0.12
r8.0.12-rc0
r8.0.13
r8.0.13-rc0
r8.0.13-rc1
r8.0.13-rc2
r8.0.14
r8.0.14-rc0
r8.0.14-rc1
r8.0.16
r8.0.16-rc0
r8.0.16-rc1
r8.0.17-alpha0
r8.0.2
r8.0.24
r8.0.3
r8.0.4
r8.0.4-rc0
r8.0.5
r8.0.5-rc0
r8.0.5-rc1
r8.0.5-rc2
r8.0.6
r8.2.0
r8.2.1
r8.2.1-rc0
r8.2.1-rc1
r8.2.10
r8.2.12
r8.2.2
r8.2.2-rc0
r8.2.3-alpha0
r8.2.4-alpha0
r8.2.4-alpha1
r8.3.0
r8.3.3
r9.*
r9.0.0-alpha0
r9.0.0-alpha1
r9.1.0-alpha0
Database specific
source
"https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-18692.json"
vanir_signatures
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"source": "https://github.com/mongodb/mongo/commit/1cf71c50824f7acb2805f2cfe7bb8c06c74c33b8",
"target": {
"file": "src/mongo/bson/bson_validate_test.cpp"
}
}
]
vanir_signatures_modified
"2026-09-18T08:14:43Z"