Vulnerability details

CVE-2026-105042

Apache Software Foundation Apache Qpid Proton C

Apache Qpid Proton C: Unbounded recursion in parsing AMQP message bodies can lead to crash

CVSS 3.1

9.8Critical

Official description

A message body that is deeply nested and decoded by pn_message_body() could overflow the stack and cause a crash. This issue affects Apache Qpid Proton C: through 0.40.0. Users are recommended to upgrade to version 0.41.1, which fixes the issue.

CVSS scores

Score	Version	Source	Vector
9.8Critical	3.1	CISA ADP / Vulnrichment (CISA-ADP)	`CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H`

Affected products

Vendor	Product	Versions	Source
Apache Software Foundation	Apache Qpid Proton C	v ≤ 0.40.0	CVEProject cvelistV5 (CNA)

References and advisories

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Details

Published: 2026-10-29
Last updated: 2026-11-06
State: Published
Assigner (CNA): apache
Kolun priority: 25 · Low

Exploit prediction (EPSS)

0.46%

Probability of exploitation in 30 days

40.3%

Percentile (among all CVEs)

SSVC assessment (CISA)

Automatable: Yes
Exploitation: None
Technical impact: Total

Weaknesses (CWE)

CWE-674
Uncontrolled Recursion