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CVE-2026-93393

Heap overflow via oversized decrypted TLS record sequence in Windows Secure Channel stream PUBLISHED

Description (CNA)

A heap-based buffer overflow exists in the TLS transport layer of the MongoDB C Driver when built with the Windows platform TLS backend. A remote endpoint that the client connects to can cause the driver to write uncontrolled data outside the bounds of a heap allocation while processing incoming encrypted traffic after the TLS handshake completes. No authentication or user interaction is required, because the affected processing occurs before any application-level authentication completes. Triggering this issue may lead to memory corruption in the client process, disclosure of adjacent heap memory, or termination of the process.

Affected (CNA)

Vendor / productVersions
MongoDB Inc. / C Driveraffected 2.4.0; affected 2.3.0 through 2.3.3; affected 2.2.0 through 2.2.4; affected 2.1.0 through 2.1.2; affected 2.0.0 through 2.0.2; affected 1.30.0 through 1.30.8; affected 1.29.0 through 1.29.2; affected 1.28.0 through 1.28.1; affected 1.27.0 through 1.27.6; affected 1.26.0 through 1.26.2; affected 1.25.0 through 1.25.4; affected 1.24.0 through 1.24.4

CWE

CWE-787

References

ADP enrichment

CISA-ADP

No English description supplied.

No references supplied.