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CVE-2025-4565

Unbounded recursion in Python Protobuf PUBLISHED

Description (CNA)

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 (CNA)

Vendor / productVersions
protocolbuffers / Python-Protobufaffected 0 before 4.25.8; affected 0 before 5.29.5; affected 0 before 6.31.1
protocolbuffers / Python-Protobufaffected 0 before 4.25.8; affected 0 before 5.29.5; affected 0 before 6.31.1

CWE

CWE-674

References

ADP enrichment

CISA-ADP

No English description supplied.

No references supplied.