Red Hat Security Advisory: General availability of the satellite/iop-host-inventory-frontend-rhel9 container image
Red Hat Lightspeed in Satellite analyzes system health and configuration by applying predefined rules to a small set of local data, such as installed packages, running services, and configuration settings. When you install Red Hat Lightspeed in Satellite locally, you can generate Red Hat Lightspeed recommendations without sending system data to Red Hat services.
AI Analysis
Technical Summary
This advisory covers security fixes in the fence-agents packages for Red Hat Enterprise Linux 9.0, specifically addressing two vulnerabilities in the urllib3 Streaming API: CVE-2025-66471, where highly compressed data is improperly handled, and CVE-2026-21441, which allows bypassing decompression-bomb safeguards via HTTP redirects. The fence-agents scripts manage remote power control for cluster nodes, so these vulnerabilities could affect cluster stability and security. The update is rated as Important by Red Hat Product Security.
Potential Impact
The vulnerabilities affect the urllib3 Streaming API used by fence-agents, potentially allowing improper handling of compressed data and bypassing decompression-bomb protections. This could lead to resource exhaustion or denial of service conditions in cluster management operations, impacting the ability to reliably restart or remove failed nodes.
Mitigation Recommendations
Red Hat has released updated fence-agents packages for Red Hat Enterprise Linux 9.0 that address these vulnerabilities. Users should apply the security update as detailed in the Red Hat advisory RHSA-2026:1734 and the referenced article https://access.redhat.com/articles/11258. Since this is an official fix, applying the update fully mitigates the vulnerabilities.
Red Hat Security Advisory: General availability of the satellite/iop-host-inventory-frontend-rhel9 container image
Description
Red Hat Lightspeed in Satellite analyzes system health and configuration by applying predefined rules to a small set of local data, such as installed packages, running services, and configuration settings. When you install Red Hat Lightspeed in Satellite locally, you can generate Red Hat Lightspeed recommendations without sending system data to Red Hat services.
Affected software
AI-Powered Analysis
Machine-generated threat intelligence
Technical Analysis
This advisory covers security fixes in the fence-agents packages for Red Hat Enterprise Linux 9.0, specifically addressing two vulnerabilities in the urllib3 Streaming API: CVE-2025-66471, where highly compressed data is improperly handled, and CVE-2026-21441, which allows bypassing decompression-bomb safeguards via HTTP redirects. The fence-agents scripts manage remote power control for cluster nodes, so these vulnerabilities could affect cluster stability and security. The update is rated as Important by Red Hat Product Security.
Potential Impact
The vulnerabilities affect the urllib3 Streaming API used by fence-agents, potentially allowing improper handling of compressed data and bypassing decompression-bomb protections. This could lead to resource exhaustion or denial of service conditions in cluster management operations, impacting the ability to reliably restart or remove failed nodes.
Mitigation Recommendations
Red Hat has released updated fence-agents packages for Red Hat Enterprise Linux 9.0 that address these vulnerabilities. Users should apply the security update as detailed in the Red Hat advisory RHSA-2026:1734 and the referenced article https://access.redhat.com/articles/11258. Since this is an official fix, applying the update fully mitigates the vulnerabilities.
Technical Details
- Gcve Source
- db.gcve.eu
- Csaf Category
- csaf_security_advisory
- Csaf Version
- 2.0
- Publisher
- Red Hat Product Security
- Advisory Id
- RHSA-2026:1734
- Cve Count
- 2
- Additional Cves
- ["CVE-2026-21441"]
- Cvss Version
- null
Threat ID: 6a160973e29bf47b5063be77
Added to database: 05/26/2026, 20:58:27 UTC
Last enriched: 07/26/2026, 00:27:30 UTC
Last updated: 07/31/2026, 21:28:51 UTC
Views: 73
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