CVE-2026-18693 - Out-of-Bounds Read/Write in MongoDB Timeseries Bucket Handling Leads to Denial of Service and Potential Memory Disclosure
CVE ID :CVE-2026-18693
Published : Aug. 11, 2026, 6:38 p.m. | 50 minutes ago
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.
Severity: 7.6 | HIGH
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Published : Aug. 11, 2026, 6:38 p.m. | 50 minutes ago
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.
Severity: 7.6 | HIGH
Visit the link for more details, such as CVSS details, affected products, timeline, and more...