Detections
Analytics
RHEL 9 : Satellite 6.18.3 Async Update (Important) (RHSA-2026:2760)
high Nessus Plugin ID 299192
Synopsis
The remote Red Hat host is missing one or more security updates.Description
The remote Redhat Enterprise Linux 9 host has packages installed that are affected by multiple vulnerabilities as referenced in the RHSA-2026:2760 advisory.Red Hat Satellite is a system management solution that allows organizations to configure and maintain their systems without the necessity to provide public Internet access to their servers or other client systems. It performs provisioning and configuration management of predefined standard operating environments.
Security Fix(es):
* python-aiohttp: AIOHTTP HTTP Request/Response Smuggling (CVE-2025-53643)
* python3.12-urllib3: urllib3 vulnerable to decompression-bomb safeguard bypass when following HTTP redirects (streaming API) (CVE-2026-21441)
* python3.12-urllib3: urllib3 Streaming API improperly handles highly compressed data (CVE-2025-66471)
Tenable has extracted the preceding description block directly from the Red Hat Enterprise Linux security advisory.
Note that Nessus has not tested for these issues but has instead relied only on the application's self-reported version number.
Solution
Update the affected python3.12-aiohttp and / or python3.12-urllib3 packages.See Also
https://access.redhat.com/security/updates/classification/#important
https://bugzilla.redhat.com/show_bug.cgi?id=2380000
https://bugzilla.redhat.com/show_bug.cgi?id=2419467
https://bugzilla.redhat.com/show_bug.cgi?id=2427726
https://issues.redhat.com/browse/SAT-35237
https://issues.redhat.com/browse/SAT-39454
https://issues.redhat.com/browse/SAT-41521
https://issues.redhat.com/browse/SAT-41522
https://issues.redhat.com/browse/SAT-41523
https://issues.redhat.com/browse/SAT-41524
https://issues.redhat.com/browse/SAT-41525
https://issues.redhat.com/browse/SAT-41526
https://issues.redhat.com/browse/SAT-41527
https://issues.redhat.com/browse/SAT-41528
https://issues.redhat.com/browse/SAT-42125
Plugin Details
Severity: High
ID: 299192
File Name: redhat-RHSA-2026-2760.nasl
Version: 1.1
Type: local
Agent: unix
Family: Red Hat Local Security Checks
Published: 2/16/2026
Updated: 2/16/2026
Supported Sensors: Continuous Assessment, Nessus Agent, Nessus
Risk Information
VPR
Risk Factor: Low
Score: 3.6
Vendor
Vendor Severity: Important
CVSS v2
Risk Factor: High
Base Score: 7.8
Temporal Score: 5.8
Vector: CVSS2#AV:N/AC:L/Au:N/C:N/I:C/A:N
CVSS Score Source: CVE-2025-53643
CVSS v3
Risk Factor: High
Base Score: 7.5
Temporal Score: 6.5
Vector: CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N
Temporal Vector: CVSS:3.0/E:U/RL:O/RC:C
CVSS v4
Risk Factor: High
Base Score: 8.9
Threat Score: 6.3
Threat Vector: CVSS:4.0/E:U
Vector: CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:H
CVSS Score Source: CVE-2026-21441
Vulnerability Information
CPE: p-cpe:/a:redhat:enterprise_linux:python3.12-aiohttp, p-cpe:/a:redhat:enterprise_linux:python3.12-urllib3, cpe:/o:redhat:enterprise_linux:9
Required KB Items: Host/local_checks_enabled, Host/RedHat/release, Host/RedHat/rpm-list, Host/cpu
Exploit Ease: No known exploits are available
Patch Publication Date: 2/16/2026
Vulnerability Publication Date: 7/14/2025