Bug 2531301 (CVE-2026-88763) - CVE-2026-88763 skupper-router: skupper-router: Unbounded recursion in AMQP field parser leads to denial of service
Summary: CVE-2026-88763 skupper-router: skupper-router: Unbounded recursion in AMQP fi...
Keywords:
Status: NEW
Alias: CVE-2026-88763
Product: Security Response
Classification: Other
Component: vulnerability
Version: unspecified
Hardware: All
OS: Linux
medium
medium
Target Milestone: ---
Assignee: Product Security
QA Contact:
URL:
Whiteboard:
Depends On:
Blocks:
TreeView+ depends on / blocked
 
Reported: 2026-09-10 06:55 UTC by OSIDB Bzimport
Modified: 2026-09-10 06:57 UTC (History)
4 users (show)

Fixed In Version:
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Description OSIDB Bzimport 2026-09-10 06:55:50 UTC
A denial-of-service vulnerability was discovered in skupper-router within the AMQP field parser. The flaw is caused by unbounded recursion when processing deeply nested or specially crafted AMQP messages, leading to a stack overflow. An attacker who can send messages to the router can trigger this crash. Exploitation requires the attacker to possess a valid x.509 certificate signed by the Red Hat Service Interconnect network's certificate authority. Successful exploitation results in the skupper-router process crashing, terminating all active connections and preventing new traffic from being routed through the affected node.


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