{"answers":{"affected":"","exploited":"It is not confirmed as exploited in the wild, but public exploit code for CVE-2026-85390 exists.","fix":"No fix has been published for CVE-2026-85390 yet. Limit exposure of the affected software until one is available.","what":"CVE-2026-85390 is a high-severity missing authorization vulnerability in bluewave-labs Checkmate, published on 3 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-2026-85390 and fix it if it is affected.\n\nWhat it is: CVE-2026-85390 is a high-severity missing authorization vulnerability in bluewave-labs Checkmate, published on 3 Sep 2026. Any signed-in user can exploit it over the network, with no action from the victim.\nExploitation: It is not confirmed as exploited in the wild, but public exploit code for CVE-2026-85390 exists.\n\nAffected product: bluewave-labs Checkmate. 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-2026-85390/ (Markdown: https://insights.sbomify.com/CVE-2026-85390/index.md)","id":"CVE-2026-85390","markdown":"https://insights.sbomify.com/CVE-2026-85390/index.md","name":"CVE-2026-85390","record":{"aliases":["GHSA-8cvg-rxfw-4pf6"],"analysis":{"component_type":"web_application","fix_type":"patch","impacts":["data_modify","security_bypass"],"network_reachable":"yes","non_default_config":false,"product_category":"Checkmate monitoring tool","requires_auth":"low_privilege","summary":"Read-only users can perform administrative actions like deleting checks and modifying notifications due to missing authorization guards.","user_interaction":"not_required","vuln_class":"missing_authorization"},"analysis_generated_by":"qwen3.8-flash-next","assigner":"VulnCheck","cpe":[],"cvss":{"score":7.1,"severity":"high","source":"cna","vector":"CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:N/VI:H/VA:L/SC:N/SI:N/SA:N","version":"4.0"},"cwes":[{"id":"CWE-862","name":"Missing Authorization"}],"description":"Checkmate through 3.11.0 omits the isAllowed role guard middleware on maintenance-window, notification, and check-deletion routes, allowing read-only users to perform administrative actions. Attackers with user-role sessions can create arbitrary maintenance windows to silence alerts, modify notification channels, and delete monitor check history to erase incident evidence.","ecosystems":[],"exploits":{"exploitdb":0,"first_seen":null,"github_poc":0,"max_poc_stars":null,"metasploit":0,"nuclei":0,"refs":[],"tier":"weaponised"},"has_fix":false,"headline":"Checkmate through 3.11.0 Missing Authorization on Maintenance Window, Notification, and Check Deletion Routes","id":"CVE-2026-85390","indexable":true,"kev":null,"kind":"cve","links":{"ecosystem":null,"product":null,"products":[],"type":"missing_authorization","year":"2026"},"n_packages":0,"n_references":6,"next":{"headline":"Peppermint through 0.5.5 Use of Hard-coded JWT Signing Secret in docker-compose.yml","id":"CVE-2026-85391"},"packages":[],"prev":{"headline":"Worklenz before 3.0.0 Authorization Bypass on Task-Scoped Endpoints","id":"CVE-2026-85389"},"products":["Checkmate"],"published":"2026-09-03","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":"poc","technical_impact":"partial"},"state":"PUBLISHED","updated":"2026-09-05","vendors":["bluewave-labs"]},"summary":"Read-only users can perform administrative actions like deleting checks and modifying notifications due to missing authorization guards.","url":"https://insights.sbomify.com/CVE-2026-85390/"}