NetSight
IP …
high8.2

CVE-2026-0994

protobuf affected by a JSON recursion depth bypass

Impact

A denial-of-service (DoS) vulnerability exists in google.protobuf.json_format.ParseDict() in Python, where the max_recursion_depth limit can be bypassed when parsing nested google.protobuf.Any messages. Due to missing recursion depth accounting inside the internal Any-handling logic, an attacker can supply deeply nested Any structures that bypass the intended recursion limit, eventually exhausting Python’s recursion stack and causing a RecursionError.

Affected packages

EcosystemPackageAffectedFixed in
pipprotobuf>= 6.30.0rc1, <= 6.33.46.33.5

Affected products

VendorProductAffected versions
GoogleProtobuf
through 33.4

Weakness classification

CWE-674

References