{"answers":{"affected":"","exploited":"It is not confirmed as exploited in the wild, but public exploit code for CVE-2026-40586 exists.","fix":"No fix has been published for CVE-2026-40586 yet. Limit exposure of the affected software until one is available.","what":"CVE-2026-40586 is a high-severity missing authorization vulnerability in blueprintue-self-hosted-edition, published on 21 Apr 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-2026-40586 and fix it if it is affected.\n\nWhat it is: CVE-2026-40586 is a high-severity missing authorization vulnerability in blueprintue-self-hosted-edition, published on 21 Apr 2026. An attacker can exploit it over the internet without logging in, with no action from the victim.\nExploitation: It is not confirmed as exploited in the wild, but public exploit code for CVE-2026-40586 exists.\n\nAffected product: blueprintue-self-hosted-edition. 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-2026-40586/ (Markdown: https://insights.sbomify.com/CVE-2026-40586/index.md)","id":"CVE-2026-40586","markdown":"https://insights.sbomify.com/CVE-2026-40586/index.md","name":"CVE-2026-40586","record":{"aliases":["GHSA-m6c2-6p3h-8jv2"],"analysis":{"component_type":"web_application","fix_type":"upgrade","impacts":["account_takeover"],"network_reachable":"yes","non_default_config":false,"product_category":"Unreal Engine developer tool","requires_auth":"none","summary":"Attackers can perform unlimited brute-force attacks on login endpoints due to missing rate limiting, potentially leading to account takeover.","user_interaction":"not_required","vuln_class":"missing_authorization"},"analysis_generated_by":"qwen3.8-flash-next","assigner":"GitHub_M","cpe":[],"cvss":{"score":7.5,"severity":"high","source":"cna","vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N","version":"3.1"},"cwes":[{"id":"CWE-307","name":"Improper Restriction of Excessive Authentication Attempts"}],"description":"blueprintUE is a tool to help Unreal Engine developers. Prior to 4.2.0, the login form handler performs no throttling of any kind. Failed authentication attempts are processed at full network speed with no IP-based rate limiting, no per-account attempt counter, no temporary lockout, no progressive delay (Tarpit), and no CAPTCHA challenge. An attacker can submit an unlimited number of credential guesses. The password policy (10+ characters, mixed case, digit, special character) reduces the effective keyspace but does not prevent dictionary attacks, credential stuffing from breached databases, or targeted attacks against known users with predictable passwords. This vulnerability is fixed in 4.2.0.","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":"blueprintUE: Login Endpoint Has No Rate Limiting, Lockout, or Brute-Force Protection","id":"CVE-2026-40586","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":"blueprintUE: Active Sessions Are Not Invalidated After Password Change or Reset","id":"CVE-2026-40587"},"packages":[],"prev":{"headline":"blueprintUE: Password Reset Tokens Have No Expiry Window","id":"CVE-2026-40585"},"products":["blueprintue-self-hosted-edition"],"published":"2026-04-21","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":"yes","exploitation":"poc","technical_impact":"partial"},"state":"PUBLISHED","updated":"2026-04-21","vendors":["blueprintue"]},"summary":"Attackers can perform unlimited brute-force attacks on login endpoints due to missing rate limiting, potentially leading to account takeover.","url":"https://insights.sbomify.com/CVE-2026-40586/"}