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CVE-2026-2303 (GCVE-0-2026-2303)

Vulnerability from cvelistv5 – Published: 2026-02-10 19:03 – Updated: 2026-02-11 15:16
VLAI
Title
Heap Out-of-Bounds Read in Go Driver GSSAPI C Wrappers enables application crash or information leak
Summary
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.
Severity
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
6.5 (Medium)
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:H/A:N
SSVC
Exploitation: none Automatable: no Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-02-11 15:16 UTC
CWE
  • CWE-183 - Permissive List of Allowed Inputs
Assigner
References
Impacted products
Vendor Product Version CPE status
MongoDB Inc MongoDB Go Driver Affected: 1.0.0 , < 1.17.7 (semver)
Affected: 2.0.0 , < 2.4.2 (semver)
guessed Create a notification for this product.
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Forecast uses a logistic model when the trend is rising, or an exponential decay model when the trend is falling. Fitted via linearized least squares.

Sightings

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  • Seen: The vulnerability was mentioned, discussed, or observed by the user.
  • Confirmed: The vulnerability has been validated from an analyst's perspective.
  • Published Proof of Concept: A public proof of concept is available for this vulnerability.
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  • Not exploited: The vulnerability was not observed as exploited by the user who reported the sighting.
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  • Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.


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