Vulnerability Details 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
Exploit prediction scoring system (EPSS) score
EPSS Score 0.0
EPSS Ranking 5.0%
CVSS Severity
CVSS v3 Score 7.5
References