{"answers":{"affected":"2 open source packages ship an affected version, including @better-auth/passkey.","exploited":"There is no known exploitation of CVE-2025-71400 in the wild and no public exploit code.","fix":"Upgrade @better-auth/passkey to 1.4.0 or later.","what":"CVE-2025-71400 is a high-severity vulnerability in better-auth passkey, published on 2 Aug 2026."},"fix_prompt":"Check this codebase for CVE-2025-71400 and fix it if it is affected.\n\nWhat it is: CVE-2025-71400 is a high-severity vulnerability in better-auth passkey, published on 2 Aug 2026. \nExploitation: There is no known exploitation of CVE-2025-71400 in the wild and no public exploit code.\n\nAffected packages and fixed versions:\n- @better-auth/passkey (npm): affected all versions; fixed in 1.4.0\n- @better-auth/passkey (npm): affected all versions; fixed in 1.4.0\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-2025-71400/ (Markdown: https://insights.sbomify.com/CVE-2025-71400/index.md)","id":"CVE-2025-71400","markdown":"https://insights.sbomify.com/CVE-2025-71400/index.md","name":"CVE-2025-71400","record":{"aliases":["GHSA-44ff-3cmc-mgqf","GHSA-4vcf-q4xf-f48m"],"analysis":null,"analysis_generated_by":null,"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-639","name":"Authorization Bypass Through User-Controlled Key"}],"description":"better-auth passkey versions before 1.4.0 contain an insecure direct object reference vulnerability in the passkey deletion endpoint that allows authenticated users to delete arbitrary passkeys by ID. Attackers with valid sessions can submit crafted requests to the delete-passkey endpoint with enumerated passkey IDs to remove other users' passkeys.","ecosystems":["npm"],"exploits":{"exploitdb":0,"first_seen":null,"github_poc":0,"max_poc_stars":null,"metasploit":0,"nuclei":0,"refs":[],"tier":"none_known"},"has_fix":false,"headline":"better-auth passkey before 1.4.0 IDOR via delete-passkey","id":"CVE-2025-71400","indexable":true,"kev":null,"kind":"cve","links":{"ecosystem":"npm","product":null,"products":[],"type":null,"year":"2025"},"n_packages":2,"n_references":2,"next":{"headline":"better-auth before 1.4.2 basePath Modification DoS","id":"CVE-2025-71401"},"packages":[{"ecosystem":"npm","fixed":["1.4.0"],"introduced":["0"],"last_affected":[],"package":"@better-auth/passkey","purl":null,"source":"GHSA-4vcf-q4xf-f48m"},{"ecosystem":"npm","fixed":["1.4.0"],"introduced":["0"],"last_affected":[],"package":"@better-auth/passkey","purl":"pkg:npm/%40better-auth/passkey","source":"GHSA-4vcf-q4xf-f48m"}],"prev":{"headline":"Better Auth before 1.4.5 Path Normalization Bypass via rou3","id":"CVE-2025-71399"},"products":["passkey"],"published":"2026-08-02","related":[],"sources":[{"class":"attribution","licence":"CVE Terms of Use (MITRE)","name":"CVE List","prefix":"CVE"},{"class":"attribution","licence":"CC BY 4.0","name":"GitHub Advisory Database","prefix":"GHSA"},{"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":"2026-10-08","vendors":["better-auth"]},"summary":null,"url":"https://insights.sbomify.com/CVE-2025-71400/"}