ESB-2026.4095 — Vulnetix

ESB-2026.4095 PUBLISHED CVSS 9.800000190734863 CRITICAL

=========================================================================== AUSCERT External Security Bulletin Redistribution ESB-2026.4095 Red Hat Developer Hub 1.8.6 release. 23 April 2026 =========================================================================== AUSCERT Security Bulletin Summary --------------------------------- Product: Red Hat Developer Hub 1.8.6 Publisher: Red Hat Operating System: Red Hat Resolution: Patch/Upgrade CVE Names: CVE-2026-27601 CVE-2026-29186 CVE-2026-3118 CVE-2026-33228 CVE-2026-33891 CVE-2025-69873 CVE-2026-1526 CVE-2026-1528 CVE-2026-2229 CVE-2026-29074 CVE-2026-32141 CVE-2026-33894 CVE-2026-33895 CVE-2026-33896 CVE-2026-29063 CVE-2026-39983 CVE-2026-40175 CVE-2026-4800 CVE-2026-4926 CVE-2026-26996 CVE-2026-27904 CVE-2025-69534 CVE-2026-33036 CVE-2026-1525 CVE-2026-25679 CVE-2025-62718 Original Bulletin: https://access.redhat.com/errata/RHSA-2026:9742 Comment: CVSS (Max): 9.8 CVE-2026-33228 (CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H) CVSS Source: Red Hat Calculator: https://www.first.org/cvss/calculator/3.1#CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H EPSS (Max): 1.8% (83rd) CVE-2026-39983 2026-04-22 - --------------------------BEGIN INCLUDED TEXT-------------------- RHSA-2026:9742 - Security Advisory Issued: 2026-04-22 Updated: 2026-04-22 Synopsis Red Hat developer hub 1.8.6 release. Type/Severity Security Advisory: Critical Topic Red Hat Developer Hub 1.8.6 has been released. Description Red Hat Developer Hub (RHDH) is Red Hat's enterprise-grade, self-managed, customizable developer portal based on Backstage.io. RHDH is supported on OpenShift and other major Kubernetes clusters (AKS, EKS, GKE). The core features of RHDH include a single pane of glass, a centralized software catalog, self-service via golden path templates, and Tech Docs. RHDH is extensible by plugins. Solution For more about Red Hat Developer Hub, see References links Fixes o RHDHBUGS-2288 - Error while loading PagerDuty backend plugin o RHDHBUGS-2947 - [Docs] - Update the Compatibility guide for Orchestrator and the 1.1. Red Hat supported plugins CVEs o CVE-2025-62718 o CVE-2025-69534 o CVE-2025-69873 o CVE-2026-1525 o CVE-2026-1526 o CVE-2026-1528 o CVE-2026-2229 o CVE-2026-25679 o CVE-2026-26996 o CVE-2026-27601 o CVE-2026-27904 o CVE-2026-29063 o CVE-2026-29074 o CVE-2026-29186 o CVE-2026-3118 o CVE-2026-32141 o CVE-2026-33036 o CVE-2026-33228 o CVE-2026-33891 o CVE-2026-33894 o CVE-2026-33895 o CVE-2026-33896 o CVE-2026-39983 o CVE-2026-40175 o CVE-2026-4800 o CVE-2026-4926 References o https://access.redhat.com/security/updates/classification/ o https://catalog.redhat.com/search?gs&searchType=containers&q=rhdh o https://developers.redhat.com/rhdh/overview o https://docs.redhat.com/en/documentation/red_hat_developer_hub o https://issues.redhat.com/browse/RHDHBUGS-2288 o https://issues.redhat.com/browse/RHDHBUGS-2947 o https://issues.redhat.com/browse/RHDHBUGS-2972 o https://issues.redhat.com/browse/RHIDP-12327 o https://issues.redhat.com/browse/RHIDP-12388 o https://issues.redhat.com/browse/RHIDP-12419 o https://issues.redhat.com/browse/RHIDP-12511 o https://issues.redhat.com/browse/RHIDP-12568 o https://issues.redhat.com/browse/RHIDP-12647 o https://issues.redhat.com/browse/RHIDP-12650 o https://issues.redhat.com/browse/RHIDP-12655 o https://issues.redhat.com/browse/RHIDP-12666 o https://issues.redhat.com/browse/RHIDP-12686 o https://issues.redhat.com/browse/RHIDP-12784 o https://issues.redhat.com/browse/RHIDP-12880 o https://issues.redhat.com/browse/RHIDP-12887 o https://issues.redhat.com/browse/RHIDP-12921 o https://issues.redhat.com/browse/RHIDP-12930 o https://issues.redhat.com/browse/RHIDP-12996 o https://issues.redhat.com/browse/RHIDP-13105 o https://issues.redhat.com/browse/RHIDP-13107 o https://issues.redhat.com/browse/RHIDP-13130 o https://issues.redhat.com/browse/RHIDP-13180 o https://issues.redhat.com/browse/RHIDP-13182 o https://issues.redhat.com/browse/RHIDP-13185 - --------------------------END INCLUDED TEXT---------------------- You have received this e-mail bulletin as a result of your organisation's registration with AUSCERT. 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It may not be updated when updates to the original are made. If downloading at a later date, it is recommended that the bulletin is retrieved directly from the author's website to ensure that the information is still current. Contact information for the authors of the original document is included in the Security Bulletin above. If you have any questions or need further information, please contact them directly. Previous advisories and external security bulletins can be retrieved from: https://portal.auscert.org.au/bulletins/ =========================================================================== AUSCERT The University of Queensland, Brisbane QLD 4072 Australia e: auscert@auscert.org.au t: +61 (0)7 3365 4417 Allies in Cyber Security ===========================================================================

Risk Scores

CVSS v3.1

9.800000190734863

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

Affected Products

Vendor	Product	Versions
Red Hat	Red Hat Developer Hub 1.8.6

Timeline

Apr 23, 2026 CVE Published
Apr 23, 2026 Distribution Patch

References

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