{"answers":{"affected":"","exploited":"There is no known exploitation of CVE-2026-71576 in the wild and no public exploit code.","fix":"No fix has been published for CVE-2026-71576 yet. Limit exposure of the affected software until one is available.","what":"CVE-2026-71576 is a high-severity missing authorization vulnerability in Red Hat Multicluster Global Hub 1.4.9, published on 10 Aug 2026. Any signed-in user can exploit it over the network, with no action from the victim."},"fix_prompt":"Check this codebase for CVE-2026-71576 and fix it if it is affected.\n\nWhat it is: CVE-2026-71576 is a high-severity missing authorization vulnerability in Red Hat Multicluster Global Hub 1.4.9, published on 10 Aug 2026. Any signed-in user can exploit it over the network, with no action from the victim.\nExploitation: There is no known exploitation of CVE-2026-71576 in the wild and no public exploit code.\n\nAffected product: Red Hat Multicluster Global Hub 1.4.9. No package-level version data is available, so check the vendor advisory linked from the reference page.\n\nTask:\n1. Search the dependency manifests and lockfiles (for example package.json, package-lock.json, requirements.txt, poetry.lock, uv.lock, pom.xml, build.gradle, go.mod, Cargo.lock, Gemfile.lock) and any Dockerfiles for the affected packages, including transitive dependencies.\n2. If an affected version is in use, upgrade it to the fixed version for its release line with the project's package manager, so the lockfile is regenerated. Prefer the smallest upgrade that fixes it.\n3. If there is no fix, or the upgrade would break the build, do not guess: explain the risk and the safest workaround instead.\n4. Run the tests and summarise what changed and why.\n5. If nothing in the project is affected, say so and change nothing.\n\nReference: https://insights.sbomify.com/CVE-2026-71576/ (Markdown: https://insights.sbomify.com/CVE-2026-71576/index.md)","id":"CVE-2026-71576","markdown":"https://insights.sbomify.com/CVE-2026-71576/index.md","name":"CVE-2026-71576","record":{"aliases":["GHSA-q5c4-r3vh-f379"],"analysis":{"component_type":"cloud_service","fix_type":"patch","impacts":["data_modify","data_read"],"network_reachable":"yes","non_default_config":false,"product_category":"Red Hat Multicluster Global Hub","requires_auth":"low_privilege","summary":"Attackers can falsify or delete critical cluster data by manipulating self-asserted source identities in CloudEvents due to improper validation.","user_interaction":"not_required","vuln_class":"missing_authorization"},"analysis_generated_by":"qwen3.8-flash-next","assigner":"redhat","cpe":[],"cvss":{"score":8.5,"severity":"high","source":"cna","vector":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:N/I:H/A:L","version":"3.1"},"cwes":[{"id":"CWE-345","name":"Insufficient Verification of Data Authenticity"}],"description":"A flaw was found in multicluster-global-hub. The manager component improperly validates the source identity of incoming CloudEvents on Kafka status topics. A remote attacker, after compromising a managed hub and obtaining its Kafka client certificate, can manipulate the self-asserted source identity. This allows the attacker to falsify or delete critical data, such as compliance, inventory, and cluster health information, belonging to other hubs in the database.","ecosystems":[],"exploits":{"exploitdb":0,"first_seen":null,"github_poc":0,"max_poc_stars":null,"metasploit":0,"nuclei":0,"refs":[],"tier":"none_known"},"has_fix":null,"headline":"Missing authorization in Multicluster Global Hub 1.4.9","id":"CVE-2026-71576","indexable":true,"kev":null,"kind":"cve","links":{"ecosystem":null,"product":null,"products":[],"type":"missing_authorization","year":"2026"},"n_packages":0,"n_references":8,"next":{"headline":"Information disclosure in Multicluster Global Hub 1.4.9","id":"CVE-2026-71577"},"packages":[],"prev":{"headline":"Apache CXF: Inoperative max_age authentication-freshness check in OidcClientCodeRequestFilter","id":"CVE-2026-71575"},"products":["Multicluster Global Hub 1.4.9","Multicluster Global Hub 1.5.8","Multicluster Global Hub 1.6.6","Multicluster Global Hub 1.7.3","Multicluster Global Hub 1.8.2"],"published":"2026-08-10","related":[],"sources":[{"class":"attribution","licence":"CVE Terms of Use (MITRE)","name":"CVE List","prefix":"CVE"},{"class":"attribution","licence":"CWE Terms of Use","name":"CWE (MITRE)"},{"class":"attribution","licence":"FIRST CVSS licence","name":"CVSS (FIRST)"}],"ssvc":{"automatable":"no","exploitation":"none","technical_impact":"partial"},"state":"PUBLISHED","updated":"2026-09-29","vendors":["Red Hat"]},"summary":"Attackers can falsify or delete critical cluster data by manipulating self-asserted source identities in CloudEvents due to improper validation.","url":"https://insights.sbomify.com/CVE-2026-71576/"}