CVE-2026-0994 — Denial of Service in Python Protobuf
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 goog…
Published: 2026-01-23 · CVSS: 8.2 · CVSS 4.0
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.
Source: CVE Program · Revision 8b16575c39f1e1810c5e863010da073d2d3285e7