RHSA-2026:99949 - Security Advisory

Topic

An update is now available for Red Hat Satellite 6.16 for RHEL 8 and RHEL 9.

Red Hat Product Security has rated this update as having a security impact
of Important. A Common Vulnerability Scoring System (CVSS) base score,
which gives a detailed severity rating, is available for each vulnerability
from the CVE link(s) in the References section.

Description

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):

• sequoia-openpgp: Cryptographic integrity compromise via key flag confusion (CVE-2026-42784)
• crass: Denial of Service via crafted scientific notation in CSS (CVE-2026-61845)
• crass: Denial of Service via excessive recursion when processing comments (CVE-2026-61847)
• Puma: HTTP Request Smuggling via Underscore Header Name Confusion (CVE-2026-68006)
• foreman: Cross-tenant disclosure of template revisions via unauthorized audit lookup (CVE-2026-81658)
• rubygem-katello: Cross-tenant Content View Filter rule access and modification via unauthorized parent filter lookup (CVE-2026-81668)
• 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)
• 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)
• 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)
• pyjwt: Token forgery via acceptance of public JWK containers as HMAC secrets (CVE-2026-102273)
• python-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)
• rubygem-smart_proxy_dynflow: Dynflow console authorizes any client certificate the capsule CA signed (CVE-2026-107152)
• foreman: API filter lookup ignores a search-limited filter permission (CVE-2026-107193)
• safemode: Jail allow-list bypass via op-assign expressions (CVE-2026-107360)
• foreman: API host template render discloses secrets to view_hosts users (CVE-2026-107443)
• candlepin: Consumer certificate can register systems in another organization (CVE-2026-111456)

Solution

Before applying this update, make sure all previously released errata
relevant to your system have been applied.

For details on how to apply this update, refer to:

https://access.redhat.com/articles/11258

Affected Products

• Red Hat Enterprise Linux for x86_64 9 x86_64
• Red Hat Enterprise Linux for x86_64 8 x86_64
• Red Hat Satellite Extended Update Support 6.16 for RHEL 9 x86_64
• Red Hat Satellite Extended Update Support 6.16 for RHEL 8 x86_64
• Red Hat Satellite Capsule Extended Update Support 6.16 for RHEL 9 x86_64
• Red Hat Satellite Capsule Extended Update Support 6.16 for RHEL 8 x86_64

Fixes

• BZ - 2464122 - CVE-2026-42784 sequoia-openpgp: sequoia-openpgp: Cryptographic integrity compromise via key flag confusion
• BZ - 2524899 - CVE-2026-81658 foreman: Cross-tenant disclosure of template revisions via unauthorized audit lookup
• BZ - 2524928 - CVE-2026-81668 rubygem-katello: Cross-tenant Content View Filter rule access and modification via unauthorized parent filter lookup
• BZ - 2529289 - CVE-2026-86322 foreman: authorization flaw in the Foreman::Controller::UserAware#find_user handling used by Api::V2::PersonalAccessTokensController
• BZ - 2529290 - CVE-2026-86323 foreman: authorization flaw in the mail-notification endpoints implemented by Api::V2::MailNotificationsController
• BZ - 2529291 - CVE-2026-86324 foreman: authorization flaw in the Foreman::Controller::UserAware handling used by Api::V2::SshKeysController
• BZ - 2531563 - CVE-2026-68006 puma: Puma: HTTP Request Smuggling via Underscore Header Name Confusion
• BZ - 2533037 - CVE-2026-90959 pulpcore: pulpcore: file:// scheme allowlist bypass in content upload file_url field enables arbitrary file read and Pulp Container registry signing key theft
• BZ - 2542685 - CVE-2026-102268 pyjwt: PyJWT: Authentication bypass via improper public key validation
• BZ - 2542690 - CVE-2026-102267 pyjwt: pyjwt: Verification key substitution via unvalidated JWKS redirects
• BZ - 2542695 - CVE-2026-102272 pyjwt: pyjwt: Token forgery via improper Unicode byte-order mark handling
• BZ - 2542697 - CVE-2026-102273 pyjwt: pyjwt: Token forgery via acceptance of public JWK containers as HMAC secrets
• BZ - 2544606 - CVE-2026-103870 pulp-rpm: Distribution tree publish creates directories from .treeinfo ids
• BZ - 2547044 - CVE-2026-106471 candlepin: candlepin: broken object-level authorization via VerifyAuthorizationFilter multi-@Verify hasAccess latching
• BZ - 2547374 - CVE-2026-107152 rubygem-smart_proxy_dynflow: Dynflow console authorizes any client certificate the capsule CA signed
• BZ - 2547437 - CVE-2026-107193 foreman: API filter lookup ignores a search-limited filter permission
• BZ - 2547645 - CVE-2026-107360 rubygem-safemode: safemode: Jail allow-list bypass via op-assign expressions
• BZ - 2547760 - CVE-2026-107443 foreman: foreman: API host template render discloses secrets to view_hosts users (incomplete CVE-2026-96659 fix)
• BZ - 2553939 - CVE-2026-111456 candlepin: Consumer certificate can register systems in another organization
• BZ - 2564247 - CVE-2026-61845 crass: crass: Denial of Service via crafted scientific notation in CSS
• BZ - 2564254 - CVE-2026-61847 crass: crass: Denial of Service via excessive recursion when processing comments

CVEs

• CVE-2026-42784
• CVE-2026-61845
• CVE-2026-61847
• CVE-2026-68006
• CVE-2026-81658
• CVE-2026-81668
• CVE-2026-86322
• CVE-2026-86323
• CVE-2026-86324
• CVE-2026-90959
• 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

References

• https://access.redhat.com/security/updates/classification/#critical