{"answers":{"affected":"","exploited":"There is no known exploitation of CVE-2026-67328 in the wild and no public exploit code.","fix":"No fix has been published for CVE-2026-67328 yet. Limit exposure of the affected software until one is available.","what":"CVE-2026-67328 is a high-severity authentication bypass vulnerability in better-auth sso, published on 1 Aug 2026. Any signed-in user can exploit it over the network, with no action from the victim."},"fix_prompt":"Check this codebase for CVE-2026-67328 and fix it if it is affected.\n\nWhat it is: CVE-2026-67328 is a high-severity authentication bypass vulnerability in better-auth sso, published on 1 Aug 2026. Any signed-in user can exploit it over the network, with no action from the victim.\nExploitation: There is no known exploitation of CVE-2026-67328 in the wild and no public exploit code.\n\nAffected product: better-auth sso. 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-2026-67328/ (Markdown: https://insights.sbomify.com/CVE-2026-67328/index.md)","id":"CVE-2026-67328","markdown":"https://insights.sbomify.com/CVE-2026-67328/index.md","name":"CVE-2026-67328","record":{"aliases":["GHSA-8g2f-78cq-p655","GHSA-prpr-5gj3-qqhg"],"analysis":{"component_type":"library","fix_type":"upgrade","impacts":["account_takeover","security_bypass"],"network_reachable":"yes","non_default_config":false,"product_category":"SSO authentication library","requires_auth":"low_privilege","summary":"Attackers can bypass SSO authentication via parsing mismatches or XSS to sign in as arbitrary users and take over accounts.","user_interaction":"not_required","vuln_class":"auth_bypass"},"analysis_generated_by":"qwen3.8-flash-next","assigner":"VulnCheck","cpe":[],"cvss":{"score":8.6,"severity":"high","source":"cna","vector":"CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:N/SC:N/SI:N/SA:N","version":"4.0"},"cwes":[{"id":"CWE-79","name":"Improper Neutralization of Input During Web Page Generation"}],"description":"@better-auth/sso versions before 1.6.21 contain multiple authentication bypass vulnerabilities in SSO provider handling that allow attackers to sign in as arbitrary users. Attackers can exploit domain verification parsing mismatches, orphaned provider accounts, unbound SAML assertions, or reflected XSS on logout endpoints to gain unauthorized session access and account takeover.","ecosystems":[],"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/sso before 1.6.21 Account Takeover via SSO","id":"CVE-2026-67328","indexable":true,"kev":null,"kind":"cve","links":{"ecosystem":null,"product":null,"products":[],"type":"auth_bypass","year":"2026"},"n_packages":0,"n_references":2,"next":{"headline":"@better-auth/stripe before 1.6.21 Authorization Bypass via Organization Subscription","id":"CVE-2026-67329"},"packages":[],"prev":{"headline":"better-auth before 1.6.22 Account Takeover via Magic-Link Email-OTP","id":"CVE-2026-67327"},"products":["sso"],"published":"2026-08-01","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":"none","technical_impact":"total"},"state":"PUBLISHED","updated":"2026-10-08","vendors":["better-auth"]},"summary":"Attackers can bypass SSO authentication via parsing mismatches or XSS to sign in as arbitrary users and take over accounts.","url":"https://insights.sbomify.com/CVE-2026-67328/"}