{"answers":{"affected":"","exploited":"It is not confirmed as exploited in the wild, but public exploit code for CVE-2026-59804 exists.","fix":"No fix has been published for CVE-2026-59804 yet. Limit exposure of the affected software until one is available.","what":"CVE-2026-59804 is a high-severity missing authorization vulnerability in web-infra-dev midscene, published on 8 Jul 2026. An attacker can exploit it over the internet without logging in, and only if a user opens a file or follows a link."},"fix_prompt":"Check this codebase for CVE-2026-59804 and fix it if it is affected.\n\nWhat it is: CVE-2026-59804 is a high-severity missing authorization vulnerability in web-infra-dev midscene, published on 8 Jul 2026. An attacker can exploit it over the internet without logging in, and only if a user opens a file or follows a link.\nExploitation: It is not confirmed as exploited in the wild, but public exploit code for CVE-2026-59804 exists.\n\nAffected product: web-infra-dev midscene. 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-2026-59804/ (Markdown: https://insights.sbomify.com/CVE-2026-59804/index.md)","id":"CVE-2026-59804","markdown":"https://insights.sbomify.com/CVE-2026-59804/index.md","name":"CVE-2026-59804","record":{"aliases":["GHSA-8rcx-4rjr-4wpf"],"analysis":{"component_type":"server_software","fix_type":"patch","impacts":["code_execution","data_read","denial_of_service"],"network_reachable":"yes","non_default_config":false,"product_category":"Midscene Bridge Server","requires_auth":"none","summary":"Unauthenticated attackers can hijack sessions, inject commands, exfiltrate data, or crash the Midscene Bridge Server via cross-origin WebSocket connections.","user_interaction":"required","vuln_class":"missing_authorization"},"analysis_generated_by":"qwen3.8-flash-next","assigner":"VulnCheck","cpe":[],"cvss":{"score":7.6,"severity":"high","source":"cna","vector":"CVSS:4.0/AV:N/AC:H/AT:N/PR:N/UI:P/VC:H/VI:H/VA:N/SC:N/SI:N/SA:N","version":"4.0"},"cwes":[{"id":"CWE-306","name":"Missing Authentication for Critical Functionality"},{"id":"CWE-1385","name":"Missing Origin Validation in WebSockets"}],"description":"Midscene Bridge Server through 1.10.3, fixed in commit 86f4118, contains a missing authentication and CORS misconfiguration vulnerability that allows unauthenticated remote attackers to hijack active bridge sessions by opening a cross-origin WebSocket connection to the local Socket.IO server, which performs no Origin header validation and requires no authentication token. Attackers can connect from any web page visited by the victim to seize the single-client slot, intercept and inject automation commands, exfiltrate command-payload data, or unconditionally terminate the server by supplying the MIDSCENE_BRIDGE_SIGNAL_KILL query parameter.","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":"Midscene Bridge Server - Session Hijack via Unauthenticated WebSocket","id":"CVE-2026-59804","indexable":true,"kev":null,"kind":"cve","links":{"ecosystem":null,"product":null,"products":[],"type":"missing_authorization","year":"2026"},"n_packages":0,"n_references":4,"next":{"headline":"Gumroad \u003c 2026.07.06.2 - Insecure Direct Object Reference in PurchasesController","id":"CVE-2026-59805"},"packages":[],"prev":{"headline":"rpcx - Denial of Service via Gzip Decompression Bomb in Wire Protocol","id":"CVE-2026-59803"},"products":["midscene"],"published":"2026-07-08","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":"total"},"state":"PUBLISHED","updated":"2026-10-08","vendors":["web-infra-dev"]},"summary":"Unauthenticated attackers can hijack sessions, inject commands, exfiltrate data, or crash the Midscene Bridge Server via cross-origin WebSocket connections.","url":"https://insights.sbomify.com/CVE-2026-59804/"}