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Vulnerability · Published Sep 10, 2026 · Assigned by redhat

CVE-2026-88763Skupper-router: skupper-router: unbounded recursion in amqp field parser leads to denial of service

Medium 5.9

In plain English

A medium-severity security flaw in Service Interconnect 2 for RHEL 8 from Red Hat. There are no confirmed reports of exploitation so far. The chance it is exploited in the next 30 days is estimated at 0.5% (higher than 45% of all known vulnerabilities).

Severity (CVSS 3.1)5.9Medium
Exploit odds (30 days)0.5%top 54.8% of all CVEs
Exploited in the wildNo reportsCISA SSVC: none
Attack toolingNoneno public tooling known

Official description

A flaw was found in the skupper-router component of Red Hat Service Interconnect, which is used to provide secure communication between distributed services. The issue occurs when the router processes a specially crafted network message using its AMQP field parser. Due to a lack of bounds on recursion during parsing, the router can run out of stack memory and crash, leading to a denial of service for the interconnected network.

Affected products (as reported)

VendorProductVersions
Red Hat Service Interconnect 2 for RHEL 8 see references
Red Hat Service Interconnect 2 for RHEL 9 see references
Red Hat Service Interconnect 2 for RHEL 9 see references

Weakness: CWE-674 · Vector: CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:H

References