CVE-2021-29508

Name of the Vulnerable Software and Affected Versions: Wire (affected versions not specified) Wire fork, AkkaDotNet/Hyperion (affected versions not specified)

Description: The issue arises from how Wire handles type information in its serialization format, allowing malicious payloads to be passed to a deserializer. An attacker can use a surrogate on the sender end to pass information about a different type for the receiving end, enabling the serializer to create any type on the deserializing end. This issue is similar to the one existing for .NET BinaryFormatter.

Recommendations: For Wire, consider disabling the deserialization of untrusted data until a patch is available. For Wire fork, AkkaDotNet/Hyperion, restrict the use of the serialization format to trusted sources to minimize the risk of exploitation. At the moment, there is no information about a newer version that contains a fix for this vulnerability.