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CVE-2026-2303

Heap Out-of-Bounds Read in Go Driver GSSAPI C Wrappers enables application crash or information leak

Published: Feb 10, 2026Updated: Feb 10, 2026 Sources: CVE List NVD BDUCWE-183
6.5MEDIUM
NVD MITRE
EPSS Score
0.2%
Top 87.1%
CISA KEV
Not in KEV
Exploits
No Known Exploits
Remediation
Patch Available
Self-Check
OpenVAS

Description

The mongo-go-driver repository contains CGo bindings for GSSAPI (Kerberos) authentication on Linux and macOS. The C wrapper implementation contains a heap out-of-bounds read vulnerability due to incorrect assumptions about string termination in the GSSAPI standard. Since GSSAPI buffers are not guaranteed to be null-terminated or have extra padding, this results in reading one byte past the allocated heap buffer.

No summary for this CVE yet.

CVSS Vector Breakdown

AV:NAC:LPR:LUI:NS:UC:NI:HA:N
Exploitability
AV:NAttack Vector
Network
AC:LAttack Complexity
Low
PR:LPrivileges Required
Low
UI:NUser Interaction
None
Scope
S:UScope
Unchanged
Impact
C:NConfidentiality
None
I:HIntegrity
High
A:NAvailability
None
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Weaknesses

CWE-183

Affected Products

MongoDB Inc
commercial·USaka mongodb, mongo
MongoDB Go DriverOn-premDatabase
Databases / relational
MongoDB Inc.
commercial·USaka mongodb, mongodb ops manager, mongodb server
MongoDB Go DriverLibraryLibrary
Databases / db-tooling

Exploitability

Official Patch Available
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References

https://jira.mongodb.org/browse/GODRIVER-3770
jira.mongodb.org
https://jira.mongodb.org/browse/GODRIVER-3770
jira.mongodb.org
https://github.com/mongodb/mongo-go-driver
github.com

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