Red Hat Security Advisory: Satellite 6.18.7.1 Async Update
Red Hat Satellite 6.18.7.1 addresses multiple security vulnerabilities affecting its system management components, including authorization bypass, privilege escalation, denial of service, and directory traversal. The vulnerabilities impact the yggdrasil-worker-forwarder component and pulpcore, involving improper HTTP/2 path validation, incorrect IPv6 parsing, Punycode label processing errors, and relative path validation bypass. These issues could allow unauthorized access, privilege escalation, denial of service, or directory traversal attacks. Red Hat has released an important security advisory with updates to fix these vulnerabilities.
AI Analysis
Technical Summary
This advisory covers multiple vulnerabilities in Red Hat Satellite 6.18.7.1 and related components. The yggdrasil-worker-forwarder component is affected by several issues: CVE-2026-33186 (authorization bypass due to improper HTTP/2 path validation), CVE-2026-25679 (incorrect parsing of IPv6 host literals), CVE-2026-39821 (privilege escalation via incorrect Punycode label processing), CVE-2026-33811 (denial of service via long CNAME response in LookupCNAME), and CVE-2026-27145 (denial of service via excessive processing of DNS SAN entries). Additionally, pulpcore (python3.12-pulpcore) is affected by CVE-2026-12701, a directory traversal vulnerability via relative_path_validator bypass in FilesystemExport. These vulnerabilities collectively impact system authorization, privilege boundaries, and availability. The advisory references Red Hat Satellite 6.18 and Red Hat Enterprise Linux 9 x86_64 as affected products. The update is rated as having an Important security impact by Red Hat Product Security.
Potential Impact
The vulnerabilities could allow attackers to bypass authorization controls, escalate privileges, cause denial of service conditions, or perform directory traversal attacks leading to unauthorized file system access. Specifically, improper HTTP/2 path validation may enable unauthorized access, incorrect parsing of IPv6 literals and Punycode processing may lead to privilege escalation, and excessive DNS processing could cause denial of service. The directory traversal vulnerability in pulpcore could allow attackers to access or manipulate files outside intended directories. These impacts affect the confidentiality, integrity, and availability of systems managed by Red Hat Satellite.
Mitigation Recommendations
Red Hat has released updated packages for Red Hat Satellite 6.18.7.1 and related components that address these vulnerabilities. Users should apply this update after ensuring all previously released errata relevant to their system have been applied. Detailed instructions for applying the update are available at Red Hat's official documentation: https://access.redhat.com/articles/11258. No additional vendor-recommended mitigations or workarounds are specified in the advisory.
Red Hat Security Advisory: Satellite 6.18.7.1 Async Update
Description
Red Hat Satellite 6.18.7.1 addresses multiple security vulnerabilities affecting its system management components, including authorization bypass, privilege escalation, denial of service, and directory traversal. The vulnerabilities impact the yggdrasil-worker-forwarder component and pulpcore, involving improper HTTP/2 path validation, incorrect IPv6 parsing, Punycode label processing errors, and relative path validation bypass. These issues could allow unauthorized access, privilege escalation, denial of service, or directory traversal attacks. Red Hat has released an important security advisory with updates to fix these vulnerabilities.
AI-Powered Analysis
Machine-generated threat intelligence
Technical Analysis
This advisory covers multiple vulnerabilities in Red Hat Satellite 6.18.7.1 and related components. The yggdrasil-worker-forwarder component is affected by several issues: CVE-2026-33186 (authorization bypass due to improper HTTP/2 path validation), CVE-2026-25679 (incorrect parsing of IPv6 host literals), CVE-2026-39821 (privilege escalation via incorrect Punycode label processing), CVE-2026-33811 (denial of service via long CNAME response in LookupCNAME), and CVE-2026-27145 (denial of service via excessive processing of DNS SAN entries). Additionally, pulpcore (python3.12-pulpcore) is affected by CVE-2026-12701, a directory traversal vulnerability via relative_path_validator bypass in FilesystemExport. These vulnerabilities collectively impact system authorization, privilege boundaries, and availability. The advisory references Red Hat Satellite 6.18 and Red Hat Enterprise Linux 9 x86_64 as affected products. The update is rated as having an Important security impact by Red Hat Product Security.
Potential Impact
The vulnerabilities could allow attackers to bypass authorization controls, escalate privileges, cause denial of service conditions, or perform directory traversal attacks leading to unauthorized file system access. Specifically, improper HTTP/2 path validation may enable unauthorized access, incorrect parsing of IPv6 literals and Punycode processing may lead to privilege escalation, and excessive DNS processing could cause denial of service. The directory traversal vulnerability in pulpcore could allow attackers to access or manipulate files outside intended directories. These impacts affect the confidentiality, integrity, and availability of systems managed by Red Hat Satellite.
Mitigation Recommendations
Red Hat has released updated packages for Red Hat Satellite 6.18.7.1 and related components that address these vulnerabilities. Users should apply this update after ensuring all previously released errata relevant to their system have been applied. Detailed instructions for applying the update are available at Red Hat's official documentation: https://access.redhat.com/articles/11258. No additional vendor-recommended mitigations or workarounds are specified in the advisory.
Technical Details
- Gcve Source
- db.gcve.eu
- Csaf Category
- csaf_security_advisory
- Csaf Version
- 2.0
- Publisher
- Red Hat Product Security
- Advisory Id
- RHSA-2026:42151
- Cve Count
- 6
- Additional Cves
- ["CVE-2026-25679","CVE-2026-27145","CVE-2026-33186","CVE-2026-33811","CVE-2026-39821"]
- Cvss Version
- null
Threat ID: 6a5fcf3a1010f89cc2150d09
Added to database: 07/21/2026, 19:57:46 UTC
Last enriched: 07/21/2026, 20:50:19 UTC
Last updated: 07/21/2026, 20:58:53 UTC
Views: 2
Community Reviews
0 reviewsCrowdsource mitigation strategies, share intel context, and vote on the most helpful responses. Sign in to add your voice and help keep defenders ahead.
Want to contribute mitigation steps or threat intel context? Sign in or create an account to join the community discussion.
Actions
Updates to AI analysis require Pro Console access. Upgrade inside Console → Billing.
Need more coverage?
Upgrade to Pro Console for AI refresh and higher limits.
For incident response and remediation, OffSeq services can help resolve threats faster.
Latest Threats
Check if your credentials are on the dark web
Instant breach scanning across billions of leaked records. Free tier available.