CVE-2026-112332

High

Description

Motor.NET before 0.19.0 contains an uncaught exception vulnerability in JsonNetDeserializer.Deserialize that allows a remote attacker who can publish to a consumed queue or topic to crash the service permanently by sending structurally valid JSON that does not match the handler's expected type. Attackers can exploit the fact that JsonSerializationException is not caught alongside JsonReaderException and InvalidCastException, causing TypedConsumerService.SingleMessageConsumeAsync to treat the error as CriticalFailure and call StopApplication, which combined with the unacknowledged message being redelivered on restart results in a permanent crash-loop.

SeverityHigh
CVSS7.5
Exploit probability—
ProductGdatasoftwareag Motornet
PublishedOct 22, 2026
First seenOct 22, 2026
Weakness typeCWE-755CWE-755

How to fix

Affected products

ProductAffected versionsFixed in
GDATASoftwareAG motornetv < 0.19.00.19.0

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