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CVE-2026-18693

Out-of-Bounds Read/Write in MongoDB Timeseries Bucket Handling Leads to Denial of Service and Potential Memory Disclosure PUBLISHED

Description (CNA)

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.

Affected (CNA)

Vendor / productVersions
MongoDB / MongoDB Serveraffected 8.3.0 before 8.3.8; affected 8.0 before 8.0.29; affected 7.0 before 7.0.40

CWE

CWE-787

References

ADP enrichment

CISA-ADP

No English description supplied.

No references supplied.