Detections
Analytics
RHEL 9 : Satellite 6.19.2.1 Async Update (Important) (RHSA-2026:42240)
high Nessus Plugin ID 328354
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-2026:42240 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):
* python3.12-pulpcore: pulpcore: relative_path_validator bypass via directory traversal in FilesystemExport (CVE-2026-12701)
* yggdrasil-worker-forwarder: golang crypto/x509: Denial of Service via excessive processing of DNS SAN entries (CVE-2026-27145)
* yggdrasil-worker-forwarder: Go net package: Denial of Service via long CNAME response in LookupCNAME (CVE-2026-33811)
* yggdrasil-worker-forwarder: golang.org/x/net/idna: Privilege escalation via incorrect Punycode label processing (CVE-2026-39821)
* yggdrasil-worker-forwarder: gRPC-Go: Authorization bypass due to improper HTTP/2 path validation (CVE-2026-33186)
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-pulpcore and / or yggdrasil-worker-forwarder packages.See Also
https://access.redhat.com/errata/RHSA-2026:42240
https://access.redhat.com/security/updates/classification/#important
Plugin Details
Severity: High
ID: 328354
File Name: redhat-RHSA-2026-42240.nasl
Version: 1.1
Type: Local
Agent: unix
Family: Red Hat Local Security Checks
Published: 7/20/2026
Updated: 7/20/2026
Supported Sensors: Frictionless Assessment AWS, Frictionless Assessment Azure, Frictionless Assessment Agent, Nessus Agent, Agentless Assessment, Continuous Assessment, Tenable Cloud Security, Tenable Self-Hosted Container Security, Nessus
Risk Information
VPR
Risk Factor: Medium
Score: 6.3
Percentile: 96.81
Vendor
Vendor Severity: Important
CVSS v2
Risk Factor: High
Base Score: 7.8
Temporal Score: 6.1
Vector: CVSS2#AV:N/AC:L/Au:N/C:N/I:N/A:C
CVSS Score Source: CVE-2026-33811
CVSS v3
Risk Factor: High
Base Score: 7.5
Temporal Score: 6.7
Vector: CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
Temporal Vector: CVSS:3.0/E:P/RL:O/RC:C
Vulnerability Information
CPE: cpe:/o:redhat:enterprise_linux:9, p-cpe:/a:redhat:enterprise_linux:python3.12-pulpcore, p-cpe:/a:redhat:enterprise_linux:yggdrasil-worker-forwarder
Required KB Items: Host/local_checks_enabled, Host/RedHat/release, Host/RedHat/rpm-list, Host/cpu
Exploit Available: true
Exploit Ease: Exploits are available
Patch Publication Date: 7/20/2026
Vulnerability Publication Date: 3/18/2026
Reference Information
CVE: CVE-2026-12701, CVE-2026-27145, CVE-2026-33186, CVE-2026-33811, CVE-2026-39821