CVE-2025-4565

  1. OpenCVE
  2. Vulnerabilities (CVE)
  3. 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

7.5 /10

CVSS v3 : HIGH

V3 Legend

Vector :

Exploitability : 3.9 / Impact : 3.6

Attack Vector NETWORK

Attack Complexity LOW

Privileges Required NONE

User Interaction NONE

Confidentiality Impact NONE

Integrity Impact NONE

Availability Impact HIGH

Scope UNCHANGED

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

Configuration 1 (hide)

OR cpe:2.3:a:google:protobuf:4.25.8:*:*:*:*:python:*:*
cpe:2.3:a:google:protobuf:5.29.5:*:*:*:*:python:*:*
cpe:2.3:a:google:protobuf:6.31.1:*:*:*:*:python:*:*
History

07 Aug 2025, 15:32

Type Values Removed Values Added
CVSS v2 : unknown
v3 : unknown 		v2 : unknown
v3 : 7.5
CPE cpe:2.3:a:google:protobuf:5.29.5:*:*:*:*:python:*:*
cpe:2.3:a:google:protobuf:4.25.8:*:*:*:*:python:*:*
cpe:2.3:a:google:protobuf:6.31.1:*:*:*:*:python:*:*
First Time Google
Google protobuf
References () https://github.com/protocolbuffers/protobuf/commit/17838beda2943d08b8a9d4df5b68f5f04f26d901 - () https://github.com/protocolbuffers/protobuf/commit/17838beda2943d08b8a9d4df5b68f5f04f26d901 - Patch

17 Jun 2025, 20:50

Type Values Removed Values Added
Summary
  • (es) Cualquier proyecto que utilice el backend Protobuf Pure-Python para analizar datos de Protocol Buffers no confiables que contengan un número arbitrario de grupos recursivos, mensajes recursivos o una serie de etiquetas SGROUP puede corromperse al exceder el límite de recursión de Python. Esto puede provocar una denegación de servicio (DSP) que bloquea la aplicación con un RecursionError. Recomendamos actualizar a la versión 6.31.1 o posterior (commit 17838beda2943d08b8a9d4df5b68f5f04f26d901).

16 Jun 2025, 15:15

Type Values Removed Values Added
New CVE
Information

Published : 2025-06-16 15:15

Updated : 2025-08-07 15:32

NVD link : CVE-2025-4565

Mitre link : CVE-2025-4565

CVE.ORG link : CVE-2025-4565

JSON object : View

Products Affected

google

  • protobuf
CWE
CWE-674

Uncontrolled Recursion