Description

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

INFO

Published Date :

2025-06-16T14:50:40.906Z

Last Modified :

2025-06-16T15:39:18.263Z

Source :

Google
AFFECTED PRODUCTS

The following products are affected by CVE-2025-4565 vulnerability.

Vendors Products
Google
  • Protobuf-python
REFERENCES

Here, you will find a curated list of external links that provide in-depth information to CVE-2025-4565.

URL Resource
https://github.com/protocolbuffers/protobuf/commit/17838beda2943d08b8a9d4df5b68f5f04f26d901 cve-icon cve-icon cve-icon
https://nvd.nist.gov/vuln/detail/CVE-2025-4565 cve-icon
https://www.cve.org/CVERecord?id=CVE-2025-4565 cve-icon
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CVSS Vulnerability Scoring System

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Detailed values of each vector for above chart.
Attack Vector
Attack Complexity
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User Interaction
Scope
Confidentiality Impact
Integrity Impact
Availability Impact