USN-8063-1: Protocol Buffers vulnerability

Publication date

25 February 2026

Overview

Protocol Buffers could be made to consume resources if it received specially crafted input.


Packages

  • protobuf - protocol buffers data serialization library

Details

It was discovered that Protocol Buffers incorrectly handled recursion when
the Python google.protobuf.json_format.ParseDict() function is being used.
An attacker could possibly use this issue to cause Protocol Buffers to
consume resources, resulting in a denial of service.

It was discovered that Protocol Buffers incorrectly handled recursion when
the Python google.protobuf.json_format.ParseDict() function is being used.
An attacker could possibly use this issue to cause Protocol Buffers to
consume resources, resulting in a denial of service.

Update instructions

In general, a standard system update will make all the necessary changes.

Learn more about how to get the fixes.

The problem can be corrected by updating your system to the following package versions:


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