CVE-2026-2303
Heap Out-of-Bounds Read in Go Driver GSSAPI C Wrappers enables application crash or information leak
- State
- Published
- Severity
- 6.9 Medium
- Published
- Feb 10, 2026
- Updated
- Feb 11, 2026
- Reserved
- Feb 10, 2026
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.
Scores
| CVSS | Score | Vector | Source |
|---|---|---|---|
| 4.0 | 6.9 Medium | CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:P/VC:N/VI:H/VA:N/SC:N/SI:N/SA:N | mongodb |
| 3.1 | 6.5 Medium | CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:H/A:N | mongodb |
Weaknesses
- CWE-183 Permissive List of Allowed Inputs
Affected Products
| Product | Versions |
|---|---|
MongoDB Go DriverMongoDB Inc |
|
References
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