Vulnerability in Red Hat Service Interconnect 2
CVE-2026-88763
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.
Published · last modified .
CVSS v3 metric
CVSS v3 base score 5.9 (Medium). Vector: CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:H.
EPSS exploit prediction
EPSS: 0.005 (44.2th percentile), scored .
Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 44th percentile — 44.2% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.004 · newest: 0.005 · change: +0.001
Affected products
Weakness classification (CWE)
References
- access.redhat.com/security/cve/CVE-2026-88763 (vdb-entry)
- bugzilla.redhat.com/show_bug.cgi (issue-tracking)
- access.redhat.com/errata/RHSA-2026:82316 (vendor-advisory)
- access.redhat.com/errata/RHSA-2026:82340 (vendor-advisory)
Frequently asked questions
- What is CVE-2026-88763?
- CVE-2026-88763 is a medium-severity vulnerability in Red Hat Service Interconnect 2, classified under Uncontrolled Recursion. CVSS score: 5.9/10. Published 2026-09-10.
- How severe is CVE-2026-88763?
- Medium severity. CVSS v3 base score is 5.9 out of 10.