{"answers":{"affected":"","exploited":"There is no known exploitation of CVE-2026-86283 in the wild and no public exploit code.","fix":"No fix has been published for CVE-2026-86283 yet. Limit exposure of the affected software until one is available.","what":"CVE-2026-86283 is a high-severity missing authorization vulnerability in MISP, published on 6 Sep 2026. Any signed-in user can exploit it over the network, with no action from the victim."},"fix_prompt":"Check this codebase for CVE-2026-86283 and fix it if it is affected.\n\nWhat it is: CVE-2026-86283 is a high-severity missing authorization vulnerability in MISP, published on 6 Sep 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-2026-86283 in the wild and no public exploit code.\n\nAffected product: MISP. 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-2026-86283/ (Markdown: https://insights.sbomify.com/CVE-2026-86283/index.md)","id":"CVE-2026-86283","markdown":"https://insights.sbomify.com/CVE-2026-86283/index.md","name":"CVE-2026-86283","record":{"aliases":["GHSA-p286-r3vc-q86q"],"analysis":{"component_type":"web_application","fix_type":"patch","impacts":["data_read","privilege_escalation"],"network_reachable":"yes","non_default_config":false,"product_category":"MISP threat sharing platform","requires_auth":"low_privilege","summary":"Authenticated users can bypass event access controls in MISP's UiBeta theme to view unauthorized event details, leading to horizontal privilege escalation.","user_interaction":"not_required","vuln_class":"missing_authorization"},"analysis_generated_by":"qwen3.8-flash-next","assigner":"CIRCL","cpe":[],"cvss":{"score":7.1,"severity":"high","source":"cna","vector":"CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:H/VI:N/VA:N/SC:N/SI:N/SA:N","version":"4.0"},"cwes":[{"id":"CWE-862","name":"Missing Authorization"},{"id":"CWE-285","name":"Improper Authorization"}],"description":"MISP's UiBeta theme collection view (app/View/Themed/UiBeta/Collections/view.ctp) performed a secondary query of member events by UUID without applying the caller's access control list (ACL). The CollectionsController::view() action correctly resolved collection element UUIDs through Event::fetchSimpleEvents($user, ...), which enforces per-user event ACL. However, the view template independently re-queried the same UUIDs using only an Event.uuid IN (...) condition, omitting the createEventConditions() authorization filter. Because collection element UUIDs are stored without server-side authorization against the referenced event (CollectionElementsController::add() accepts whatever UUID the collection owner posts), an authenticated user with view access to a collection could retrieve full details of events they are not permitted to read. The exposed data included event identifiers, info, dates, timestamps, creator organization, all event tags, and galaxy clusters (the latter attached via a cluster-scoped rather than event-scoped ACL check). This constitutes an authorization bypass at the presentation layer, allowing horizontal privilege escalation across event boundaries within the MISP instance.","ecosystems":[],"exploits":{"exploitdb":0,"first_seen":"2026-09-13","github_poc":1,"max_poc_stars":0,"metasploit":0,"nuclei":0,"refs":[{"date":"2026-09-13T21:15:39Z","kind":"github_poc","ref":"https://github.com/Freire007-byte/sentric-core","stars":0,"title":"Autonomous AI agent with its own crypto identity — hunts CVEs, builds exploit labs, validates vulnerabilities (first public PoC of CVE-2026-86283), trades crypto 24/7 to fund itself. Sentric Research."}],"tier":"poc_unverified"},"has_fix":false,"headline":"MISP UiBeta Collection View Bypasses Event ACL, Exposing Unauthorized Event Data","id":"CVE-2026-86283","indexable":true,"kev":null,"kind":"cve","links":{"ecosystem":null,"product":null,"products":[],"type":"missing_authorization","year":"2026"},"n_packages":0,"n_references":1,"next":{"headline":"jaychouchannel Tourism-Management-System CommonController.java getOption information disclosure","id":"CVE-2026-86284"},"packages":[],"prev":{"headline":"jaychouchannel Tourism-Management-System CommonDao CommonController.java sql injection","id":"CVE-2026-86282"},"products":["MISP"],"published":"2026-09-06","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)"},{"class":"open","licence":"CC0","name":"PoC-in-GitHub"}],"ssvc":{"automatable":"no","exploitation":"none","technical_impact":"partial"},"state":"PUBLISHED","updated":"2026-09-08","vendors":["MISP"]},"summary":"Authenticated users can bypass event access controls in MISP's UiBeta theme to view unauthorized event details, leading to horizontal privilege escalation.","url":"https://insights.sbomify.com/CVE-2026-86283/"}