cvedb.io
CVE-2025-4565
MEDIUM · CVSS 5.3
EPSS exploitation probability: 0%
Published 2025-06-16T15:15:24.990 · Last modified 2026-06-17T09:33:31.963

Summary

Any project that uses Protobuf Pure-Python backend to parse untrusted Protocol Buffers data containing an arbitrary number of recursive groups, recursive messages or a series of SGROUP tags can be corrupted by exceeding the Python recursion limit. This can result in a Denial of service by crashing the application with a RecursionError. We recommend upgrading to version =>6.31.1 or beyond commit 17838beda2943d08b8a9d4df5b68f5f04f26d901

Affected products

google — protobuf-python

Does this affect you?

Add your gear to cvedb and we'll alert you only when google ships something exploited.

Check my exposure →

References

This product uses data from the NVD API but is not endorsed or certified by the NVD. Informational only; not professional security advice.