CVE-2026-105042

Unbounded recursion in parsing AMQP message bodies can lead to crash

Severity

Important

Affected components

Apache Qpid Proton C

Affected versions

versions through 0.40.0

Fixed versions

0.41.1 and later

Description

A message body that is deeply nested and decoded by pn_message_body() could overflow the stack and cause a crash.

Resolution

Users are recommended to upgrade to version 0.41.1, which fixes the issue.

Credit

• zhangph
• Gjoko Krstic

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