CVE-2025-4565

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

CVSS v3 5.3 MEDIUM

5.3^/10

CVSS v3 : MEDIUM

Vector :

Exploitability : 3.9 / Impact : 1.4

Attack Vector NETWORK

Attack Complexity LOW

Privileges Required NONE

User Interaction NONE

Confidentiality Impact NONE

Integrity Impact NONE

Availability Impact LOW

Scope UNCHANGED

References

Link	Resource
https://github.com/protocolbuffers/protobuf/commit/17838beda2943d08b8a9d4df5b68f5f04f26d901	Patch

Configurations

Configuration 1 (hide)

OR	cpe:2.3:a:google:protobuf-python::::::::
	cpe:2.3:a:google:protobuf-python::::::::
	cpe:2.3:a:google:protobuf-python::::::::

History

No history.

Information

Published : 2025-06-16 15:15

Updated : 2025-08-14 17:05

NVD link : CVE-2025-4565

Mitre link : CVE-2025-4565

CVE.ORG link : CVE-2025-4565

JSON object : View

Products Affected

google

protobuf-python

CWE

CWE-674

Uncontrolled Recursion

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