{"answers":{"affected":"4 open source packages ship an affected version, including better-auth.","exploited":"There is no known exploitation of CVE-2026-67327 in the wild and no public exploit code.","fix":"Upgrade better-auth to a fixed version for your release line: 1.6.22 or 1.7.0-beta.10.","what":"CVE-2026-67327 is a high-severity authentication bypass vulnerability in better-auth, published on 1 Aug 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-2026-67327 and fix it if it is affected.\n\nWhat it is: CVE-2026-67327 is a high-severity authentication bypass vulnerability in better-auth, published on 1 Aug 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: There is no known exploitation of CVE-2026-67327 in the wild and no public exploit code.\n\nAffected packages and fixed versions:\n- better-auth (npm): affected from 1.1.3; fixed in 1.6.22\n- better-auth (npm): affected from 1.1.3; fixed in 1.6.22\n- better-auth (npm): affected from 1.7.0-beta.0; fixed in 1.7.0-beta.10\n- better-auth (npm): affected from 1.7.0-beta.0; fixed in 1.7.0-beta.10\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-2026-67327/ (Markdown: https://insights.sbomify.com/CVE-2026-67327/index.md)","id":"CVE-2026-67327","markdown":"https://insights.sbomify.com/CVE-2026-67327/index.md","name":"CVE-2026-67327","record":{"aliases":["GHSA-9wm3-rh5c-fc37","GHSA-qq9h-g4jm-xgf3"],"analysis":{"component_type":"library","fix_type":"upgrade","impacts":["account_takeover"],"network_reachable":"yes","non_default_config":true,"product_category":"Authentication library","requires_auth":"none","summary":"Attackers can hijack accounts by pre-registering with victim emails when open registration is enabled, retaining access after victim verification.","user_interaction":"required","vuln_class":"auth_bypass"},"analysis_generated_by":"qwen3.8-flash-next","assigner":"VulnCheck","cpe":[],"cvss":{"score":8.7,"severity":"high","source":"cna","vector":"CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:P/VC:H/VI:H/VA:L/SC:N/SI:N/SA:N","version":"4.0"},"cwes":[{"id":"CWE-287","name":"Improper Authentication"}],"description":"better-auth versions \u003e= 1.1.3 and \u003c 1.6.22 (and pre-release versions \u003e= 1.7.0-beta.0 and \u003c 1.7.0-beta.10) are vulnerable to account takeover via pre-account hijacking on magic-link and email-OTP sign-in when open email/password registration is enabled. An attacker registers an account with the victim's email address and an attacker-chosen password; the account remains unverified. When the legitimate owner later signs in via the magic-link or email-OTP passwordless flow, the account is marked verified without removing the pre-existing password or revoking existing sessions, so the attacker's password remains valid, granting persistent access to the victim's account. Fixed in 1.6.22 and 1.7.0-beta.10.","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 before 1.6.22 Account Takeover via Magic-Link Email-OTP","id":"CVE-2026-67327","indexable":true,"kev":null,"kind":"cve","links":{"ecosystem":"npm","product":null,"products":[],"type":"auth_bypass","year":"2026"},"n_packages":4,"n_references":2,"next":{"headline":"@better-auth/sso before 1.6.21 Account Takeover via SSO","id":"CVE-2026-67328"},"packages":[{"ecosystem":"npm","fixed":["1.6.22"],"introduced":["1.1.3"],"last_affected":[],"package":"better-auth","purl":null,"source":"GHSA-qq9h-g4jm-xgf3"},{"ecosystem":"npm","fixed":["1.6.22"],"introduced":["1.1.3"],"last_affected":[],"package":"better-auth","purl":"pkg:npm/better-auth","source":"GHSA-qq9h-g4jm-xgf3"},{"ecosystem":"npm","fixed":["1.7.0-beta.10"],"introduced":["1.7.0-beta.0"],"last_affected":[],"package":"better-auth","purl":null,"source":"GHSA-qq9h-g4jm-xgf3"},{"ecosystem":"npm","fixed":["1.7.0-beta.10"],"introduced":["1.7.0-beta.0"],"last_affected":[],"package":"better-auth","purl":"pkg:npm/better-auth","source":"GHSA-qq9h-g4jm-xgf3"}],"prev":{"headline":"GitPython before 3.1.50 Newline Injection via config_writer section","id":"CVE-2026-67326"},"products":["better-auth"],"published":"2026-08-01","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":"total"},"state":"PUBLISHED","updated":"2026-08-03","vendors":["better-auth"]},"summary":"Attackers can hijack accounts by pre-registering with victim emails when open registration is enabled, retaining access after victim verification.","url":"https://insights.sbomify.com/CVE-2026-67327/"}