Skupper-router: skupper-router: unbounded recursion in amqp field parser leads to denial of service
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.
CVE-2026-88763
Primary source · Revision 1
Imported from structured advisory data. Source references identify upstream records or fields; verify affected versions and your deployed configuration.
Security context
Source reference: cve:CVE-2026-88763
Service Interconnect 2 for RHEL 8
Source reference: /containers/cna/affected/0/product
- Affected versions
- Not stated in this record
- Fixed versions
- Not stated in this record
- Prerequisites
- Not stated in this record
Service Interconnect 2 for RHEL 9
Source reference: /containers/cna/affected/1/product
- Affected versions
- Not stated in this record
- Fixed versions
- Not stated in this record
- Prerequisites
- Not stated in this record
Service Interconnect 2 for RHEL 9
Source reference: /containers/cna/affected/2/product
- Affected versions
- Not stated in this record
- Fixed versions
- Not stated in this record
- Prerequisites
- Not stated in this record
Structured affected-version data
Original package identities and version rules from this source.
[
{
"cpes": [
"cpe:/a:redhat:service_interconnect:2.0::el8",
"cpe:/a:redhat:service_interconnect:2.0::el9"
],
"vendor": "Red Hat",
"product": "Service Interconnect 2 for RHEL 8",
"versions": [
{
"status": "unaffected",
"version": "0:3.5.3-1.el8",
"lessThan": "*",
"versionType": "rpm"
}
],
"packageName": "skupper-router",
"collectionURL": "https://access.redhat.com/downloads/content/package-browser/",
"defaultStatus": "affected"
},
{
"cpes": [
"cpe:/a:redhat:service_interconnect:2.0::el8",
"cpe:/a:redhat:service_interconnect:2.0::el9"
],
"vendor": "Red Hat",
"product": "Service Interconnect 2 for RHEL 9",
"versions": [
{
"status": "unaffected",
"version": "0:3.5.3-1.el9",
"lessThan": "*",
"versionType": "rpm"
}
],
"packageName": "skupper-router",
"collectionURL": "https://access.redhat.com/downloads/content/package-browser/",
"defaultStatus": "affected"
},
{
"cpes": [
"cpe:/a:redhat:service_interconnect:2.0::el9"
],
"vendor": "Red Hat",
"product": "Service Interconnect 2 for RHEL 9",
"versions": [
{
"status": "unaffected",
"version": "3.5.3-1",
"lessThan": "*",
"versionType": "rpm"
}
],
"packageName": "service-interconnect/skupper-router-rhel9",
"collectionURL": "https://catalog.redhat.com/software/containers/",
"defaultStatus": "affected"
}
]- Related CVEs
- CVE-2026-88763
Source reference:
/cveMetadata/cveId
Publisher severity
medium
Source reference: /containers/cna/metrics
- Event
- #21315 · Revision 1
- Added to Heist Feed
- Publisher date