CVE-2026-2303 | THREATINT

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.

PUBLISHED Reserved 2026-02-10 | Published 2026-02-10 | Updated 2026-02-11 | Assigner mongodb

MEDIUM: 6.9CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:P/VC:N/VI:H/VA:N/SC:N/SI:N/SA:N

MEDIUM: 6.5CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:H/A:N

Problem types

CWE-183 Permissive List of Allowed Inputs

Product status

Default status

unaffected

1.0.0 (semver) before 1.17.7

affected

2.0.0 (semver) before 2.4.2

affected

References

jira.mongodb.org/browse/GODRIVER-3770

cve.org (CVE-2026-2303)

nvd.nist.gov (CVE-2026-2303)

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