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Soon63Medium6.3VulnerabilityCVE-2026-106428No patch link observed

CVE-2026-106428 — An out-of-bounds read in SCRAM authentication response parsing in the MongoDB C Driver can read one byte beyond a fixed-size buffer when processing…

Published Oct 8, 2026, 07:16 PM UTCIngested 3h agoSource NVD(cve-db)CVE-2026-106428

Description

An out-of-bounds read in SCRAM authentication response parsing in the MongoDB C Driver can read one byte beyond a fixed-size buffer when processing a malformed server-final message. A server or network intermediary able to provide this message before server-signature verification can cause the application using the driver to terminate. The extra byte is not returned through the protocol.

CVSS v4.0 base metrics

CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:N/VC:N/VI:N/VA:L/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X
6.3

Medium severity

Band computed from the CVSS base score, not the source's own label — so it means the same thing across every feed.

AV

Network

Attack Vector

AC

Low

Attack Complexity

AT

Present

Attack Requirements

PR

None

Privileges Required

UI

None

User Interaction

VC

None

Confidentiality (Vulnerable System)

VI

None

Integrity (Vulnerable System)

VA

Low

Availability (Vulnerable System)

SC

None

Confidentiality (Subsequent System)

SI

None

Integrity (Subsequent System)

SA

None

Availability (Subsequent System)

References

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