RHEL 9 : Satellite 6.18.11 Async Update (Critical) (RHSA-2026:99952)

high Nessus Plugin ID 379920

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-2026:99952 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):

* rubygem-katello: Cross-tenant Content View Filter rule access and modification via unauthorized parent filter lookup (CVE-2026-81668)

* sequoia-openpgp: Cryptographic integrity compromise via key flag confusion (CVE-2026-42784)

* pyjwt: Token forgery via acceptance of public JWK containers as HMAC secrets (CVE-2026-102273)

* python3.12-pulp-rpm: Distribution tree publish creates directories from .treeinfo ids (CVE-2026-103870)

* candlepin: broken object-level authorization via VerifyAuthorizationFilter multi-@Verify hasAccess latching (CVE-2026-106471)

* pyjwt: Verification key substitution via unvalidated JWKS redirects (CVE-2026-102267)

* pyjwt: Authentication bypass via improper public key validation (CVE-2026-102268)

* pyjwt: Token forgery via improper Unicode byte-order mark handling (CVE-2026-102272)

* candlepin: Consumer certificate can register systems in another organization (CVE-2026-111456)

* foreman: Cross-tenant disclosure of template revisions via unauthorized audit lookup (CVE-2026-81658)

* foreman: authorization flaw in the Foreman::Controller::UserAware#find_user handling used by Api::V2::PersonalAccessTokensController (CVE-2026-86322)

* foreman: authorization flaw in the mail-notification endpoints implemented by Api::V2::MailNotificationsController (CVE-2026-86323)

* foreman: authorization flaw in the Foreman::Controller::UserAware handling used by Api::V2::SshKeysController (CVE-2026-86324)

* foreman: API filter lookup ignores a search-limited filter permission (CVE-2026-107193)

* foreman: API host template render discloses secrets to view_hosts users (incomplete CVE-2026-96659 fix) (CVE-2026-107443)

* safemode: Jail allow-list bypass via op-assign expressions (CVE-2026-107360)

* Puma: HTTP Request Smuggling via Underscore Header Name Confusion (CVE-2026-68006)

* rubygem-smart_proxy_dynflow: Dynflow console authorizes any client certificate the capsule CA signed (CVE-2026-107152)

* crass: Denial of Service via crafted scientific notation in CSS (CVE-2026-61845)

* ansible-core: ansible.builtin.git invokes git without a `--` separator, allowing argument injection via a `-`-leading repository URL (e.g. --upload-pack) -> RCE (CVE-2026-84503)

* crass: Denial of Service via excessive recursion when processing comments (CVE-2026-61847)

* pulpcore: file:// scheme allowlist bypass in content upload file_url field enables arbitrary file read and Pulp Container registry signing key theft (CVE-2026-90959)

Bug fix(es):

* Adding hosts to a large host collection is slow (SAT-50731)

* Automatic Capsule sync is not triggered during subsequent Rolling Content View refreshes in Satellite 6.18 (SAT-50730)

* PG::SequenceGeneratorLimitExceeded: reached maximum value of sequence katello_rpms_id_seq during repo sync (SAT-53451)

* Recurring cookie store unavailable: :hash, error: key not found: :hash under bulk RHSM load (SAT-53458)

* Attempting to assign content-view-environments via hammer when LCE is not synced by content source should propagate error message text to hammer (SAT-53454)

* Client failed to register to the Satellite with integer out of range error (SAT-53455)

* Host::Managed audit exclusions not applied, resulting in excessive audit records (SAT-53456)

* RHSA-2026:74504: Token enforcement breaks generic non-PXE provisioning and fails when token_lifetime=0 (SAT-52738)

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 packages.

Plugin Details

Severity: High

ID: 379920

File Name: redhat-RHSA-2026-99952.nasl

Version: 1.1

Type: Local

Agent: unix

Family: Red Hat Local Security Checks

Published: 11/12/2026

Updated: 11/12/2026

Supported Sensors: Continuous Assessment, Nessus Agent, Nessus

Risk Information

VPR

Risk Factor: High

Score: 7.1

Percentile: 98.16

Vendor

Vendor Severity: Critical

CVSS v2

Risk Factor: High

Base Score: 9.4

Temporal Score: 7.4

Vector: CVSS2#AV:N/AC:L/Au:N/C:C/I:C/A:N

CVSS Score Source: CVE-2026-102267

CVSS v3

Risk Factor: Critical

Base Score: 9.1

Temporal Score: 8.2

Vector: CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:N

Temporal Vector: CVSS:3.0/E:P/RL:O/RC:C

CVSS v4

Risk Factor: High

Base Score: 8.9

Threat Score: 7.7

Threat Vector: CVSS:4.0/E:P

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-2026-61845

Vulnerability Information

CPE: cpe:/o:redhat:enterprise_linux:9, p-cpe:/a:redhat:enterprise_linux:ansible-core, p-cpe:/a:redhat:enterprise_linux:ansible-test, p-cpe:/a:redhat:enterprise_linux:candlepin-selinux, p-cpe:/a:redhat:enterprise_linux:candlepin, p-cpe:/a:redhat:enterprise_linux:foreman-cli, p-cpe:/a:redhat:enterprise_linux:foreman-debug, p-cpe:/a:redhat:enterprise_linux:foreman-dynflow-sidekiq, p-cpe:/a:redhat:enterprise_linux:foreman-ec2, p-cpe:/a:redhat:enterprise_linux:foreman-journald, p-cpe:/a:redhat:enterprise_linux:foreman-libvirt, p-cpe:/a:redhat:enterprise_linux:foreman-openstack, p-cpe:/a:redhat:enterprise_linux:foreman-pcp, p-cpe:/a:redhat:enterprise_linux:foreman-postgresql, p-cpe:/a:redhat:enterprise_linux:foreman-redis, p-cpe:/a:redhat:enterprise_linux:foreman-service, p-cpe:/a:redhat:enterprise_linux:foreman-telemetry, p-cpe:/a:redhat:enterprise_linux:foreman-vmware, p-cpe:/a:redhat:enterprise_linux:foreman, p-cpe:/a:redhat:enterprise_linux:python3.12-pulp-rpm, p-cpe:/a:redhat:enterprise_linux:python3.12-pulpcore, p-cpe:/a:redhat:enterprise_linux:python3.12-pyjwt, p-cpe:/a:redhat:enterprise_linux:python3.12-pyjwt%2bcrypto, p-cpe:/a:redhat:enterprise_linux:python3.12-pysequoia, p-cpe:/a:redhat:enterprise_linux:rubygem-crass, p-cpe:/a:redhat:enterprise_linux:rubygem-katello, p-cpe:/a:redhat:enterprise_linux:rubygem-puma, p-cpe:/a:redhat:enterprise_linux:rubygem-safemode, p-cpe:/a:redhat:enterprise_linux:rubygem-smart_proxy_dynflow

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: 11/12/2026

Vulnerability Publication Date: 5/11/2026

Reference Information

CVE: CVE-2026-102267, CVE-2026-102268, CVE-2026-102272, CVE-2026-102273, CVE-2026-103870, CVE-2026-106471, CVE-2026-107152, CVE-2026-107193, CVE-2026-107360, CVE-2026-107443, CVE-2026-111456, CVE-2026-42784, CVE-2026-61845, CVE-2026-61847, CVE-2026-68006, CVE-2026-81658, CVE-2026-81668, CVE-2026-84503, CVE-2026-86322, CVE-2026-86323, CVE-2026-86324, CVE-2026-90959

CWE: 183, 22, 287, 346, 347, 444, 639, 770, 862, 863, 88

RHSA: 2026:99952

Detections

Analytics

RHEL 9 : Satellite 6.18.11 Async Update (Critical) (RHSA-2026:99952)

high Nessus Plugin ID 379920

Synopsis

Description

Solution

See Also

Plugin Details

Risk Information

VPR

Vendor

CVSS v2

CVSS v3

CVSS v4

Vulnerability Information

Reference Information