{"answers":{"affected":"It affects 1 product.","exploited":"There is no known exploitation of CVE-2026-4400 in the wild and no public exploit code.","fix":"No fix has been published for CVE-2026-4400 yet. Limit exposure of the affected software until one is available.","what":"CVE-2026-4400 is a high-severity missing authorization vulnerability in 1millionbot Millie chat, published on 31 Mar 2026. An attacker can exploit it over the internet without logging in, with no action from the victim."},"fix_prompt":"Check this codebase for CVE-2026-4400 and fix it if it is affected.\n\nWhat it is: CVE-2026-4400 is a high-severity missing authorization vulnerability in 1millionbot Millie chat, published on 31 Mar 2026. An attacker can exploit it over the internet without logging in, with no action from the victim.\nExploitation: There is no known exploitation of CVE-2026-4400 in the wild and no public exploit code.\n\nAffected product: 1millionbot Millie chat. 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-2026-4400/ (Markdown: https://insights.sbomify.com/CVE-2026-4400/index.md)","id":"CVE-2026-4400","markdown":"https://insights.sbomify.com/CVE-2026-4400/index.md","name":"CVE-2026-4400","record":{"aliases":["GHSA-7h53-73g8-fjvr"],"analysis":{"component_type":"web_application","fix_type":"patch","impacts":["data_read"],"network_reachable":"yes","non_default_config":false,"product_category":"Chatbot service","requires_auth":"none","summary":"Remote attackers can view other users' private chatbot conversations by manipulating conversation IDs, exposing sensitive data.","user_interaction":"not_required","vuln_class":"missing_authorization"},"analysis_generated_by":"qwen3.8-flash-next","assigner":"INCIBE","cpe":[{"product":"millie_chatbot","vendor":"1millionbot"}],"cvss":{"score":7,"severity":"high","source":"cna","vector":"CVSS:4.0/AV:N/AC:H/AT:N/PR:N/UI:N/VC:N/VI:N/VA:N/SC:H/SI:H/SA:N","version":"4.0"},"cwes":[{"id":"CWE-639","name":"Authorization Bypass Through User-Controlled Key"}],"description":"Insecure Direct Object Reference (IDOR) vulnerability in 1millionbot Millie chat that allows private conversations of other users being viewed by simply changing the conversation ID. The vulnerability is present in the endpoint 'api.1millionbot.com/api/public/conversations/' and, if exploited, could allow a remote attacker to access other users private chatbot conversations, revealing sensitive or confidential data without requiring credentials or impersonating users. In order for the vulnerability to be exploited, the attacker must have the user's conversation ID.","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":"Multiple vulnerabilities in 1millionbot Millie chatbot","id":"CVE-2026-4400","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":"Download Monitor \u003c= 5.1.10 - Cross-Site Request Forgery to Download Path Deletion and Disabling","id":"CVE-2026-4401"},"packages":[],"prev":{"headline":"Multiple vulnerabilities in 1millionbot Millie chatbot","id":"CVE-2026-4399"},"products":["Millie chat"],"published":"2026-03-31","related":[{"cvss_score":8.7,"headline":"Multiple vulnerabilities in 1millionbot Millie chatbot","id":"CVE-2026-4399","kev_date_added":null,"published":"2026-03-31"}],"sources":[{"class":"attribution","licence":"CVE Terms of Use (MITRE)","name":"CVE List","prefix":"CVE"},{"class":"attribution","licence":"US public information, NVD API terms","name":"NVD"},{"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":"2026-03-31","vendors":["1millionbot"]},"summary":"Remote attackers can view other users' private chatbot conversations by manipulating conversation IDs, exposing sensitive data.","url":"https://insights.sbomify.com/CVE-2026-4400/"}