An issue in MongoDB Server's handling of timeseries collections could allow an authenticated user with write privileges to cause an internal data structure to become inconsistent through certain document insertions. A subsequent insert into the affected bucket could then result in the server accessing memory outside its intended bounds, potentially causing a server crash (denial of service), exposure of limited memory contents, or memory corruption.
Metrics
Affected Vendors & Products
References
| Link | Providers |
|---|---|
| https://jira.mongodb.org/browse/SERVER-129994 |
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History
Wed, 16 Sep 2026 15:30:00 +0000
| Type | Values Removed | Values Added |
|---|---|---|
| First Time appeared |
Mongodb mongodb
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| CPEs | 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:*:*:-:-:*:* |
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| Vendors & Products |
Mongodb mongodb
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Wed, 12 Aug 2026 12:45:00 +0000
| Type | Values Removed | Values Added |
|---|---|---|
| First Time appeared |
Mongodb
Mongodb mongodb Server |
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| Vendors & Products |
Mongodb
Mongodb mongodb Server |
Tue, 11 Aug 2026 21:30:00 +0000
| Type | Values Removed | Values Added |
|---|---|---|
| Metrics |
ssvc
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Tue, 11 Aug 2026 19:00:00 +0000
| Type | Values Removed | Values Added |
|---|---|---|
| Description | An issue in MongoDB Server's handling of timeseries collections could allow an authenticated user with write privileges to cause an internal data structure to become inconsistent through certain document insertions. A subsequent insert into the affected bucket could then result in the server accessing memory outside its intended bounds, potentially causing a server crash (denial of service), exposure of limited memory contents, or memory corruption. | |
| Title | Out-of-Bounds Read/Write in MongoDB Timeseries Bucket Handling Leads to Denial of Service and Potential Memory Disclosure | |
| Weaknesses | CWE-787 | |
| References |
| |
| Metrics |
cvssV3_1
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Status: PUBLISHED
Assigner: mongodb
Published: 2026-08-11T18:38:31.374Z
Updated: 2026-08-11T20:25:02.916Z
Reserved: 2026-08-03T15:53:26.435Z
Link: CVE-2026-18693
Updated: 2026-08-11T20:24:58.640Z
Status : Analyzed
Published: 2026-08-11T19:17:23.450
Modified: 2026-10-23T21:10:00.157
Link: CVE-2026-18693
No data.