{"answers":{"affected":"","exploited":"There is no known exploitation of CVE-2026-109372 in the wild and no public exploit code.","fix":"No fix has been published for CVE-2026-109372 yet. Limit exposure of the affected software until one is available.","what":"CVE-2026-109372 is a critical authentication bypass vulnerability in zitadel, published on 12 Oct 2026. An attacker needs administrator access to exploit it, with no action from the victim."},"fix_prompt":"Check this codebase for CVE-2026-109372 and fix it if it is affected.\n\nWhat it is: CVE-2026-109372 is a critical authentication bypass vulnerability in zitadel, published on 12 Oct 2026. An attacker needs administrator access to exploit it, with no action from the victim.\nExploitation: There is no known exploitation of CVE-2026-109372 in the wild and no public exploit code.\n\nAffected product: zitadel. 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-2026-109372/ (Markdown: https://insights.sbomify.com/CVE-2026-109372/index.md)","id":"CVE-2026-109372","markdown":"https://insights.sbomify.com/CVE-2026-109372/index.md","name":"CVE-2026-109372","record":{"aliases":["GHSA-65fv-6pff-4q47","GHSA-x4c7-fpcx-w9q6"],"analysis":{"component_type":"server_software","fix_type":"upgrade","impacts":["account_takeover","privilege_escalation"],"network_reachable":"yes","non_default_config":false,"product_category":"Identity and Access Management","requires_auth":"high_privilege","summary":"Organization administrators can hijack user accounts across organizations by exploiting SAML identity-provider confusion in ZITADEL.","user_interaction":"not_required","vuln_class":"auth_bypass"},"analysis_generated_by":"qwen3.8-flash-next","assigner":"VulnCheck","cpe":[],"cvss":{"score":9.3,"severity":"critical","source":"cna","vector":"CVSS:4.0/AV:N/AC:L/AT:N/PR:H/UI:N/VC:H/VI:H/VA:N/SC:H/SI:H/SA:N","version":"4.0"},"cwes":[{"id":"CWE-287","name":"Improper Authentication"}],"description":"ZITADEL 4.x before 4.19.2 and 3.x through 3.4.15 contains an authentication bypass in the SAML identity-provider intent callback, which verifies the assertion signature using the provider named in the request URL but resolves the user from the login intent without checking they match. Attackers with organization-administrator permission can register a SAML provider with their own signing key to obtain authenticated sessions as any user linked to another SAML provider on the instance, including in other organizations.","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":"ZITADEL 3.0.0 before 4.19.2 Account Takeover via SAML Identity-Provider Confusion","id":"CVE-2026-109372","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":"ZITADEL 3.0.0 before 4.19.2 Account Takeover via Unsigned Login V2 Session Cookie","id":"CVE-2026-109373"},"packages":[],"prev":{"headline":"ZITADEL 3.0.0 before 4.18.0 Unauthenticated Username Change via Login V1","id":"CVE-2026-109371"},"products":["zitadel"],"published":"2026-10-12","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":"2026-10-13","vendors":["zitadel"]},"summary":"Organization administrators can hijack user accounts across organizations by exploiting SAML identity-provider confusion in ZITADEL.","url":"https://insights.sbomify.com/CVE-2026-109372/"}