{"answers":{"affected":"","exploited":"There is no known exploitation of CVE-2026-105206 in the wild and no public exploit code.","fix":"No fix has been published for CVE-2026-105206 yet. Limit exposure of the affected software until one is available.","what":"CVE-2026-105206 is a medium-severity missing authorization vulnerability in zitadel, published on 4 Oct 2026. Any signed-in user can exploit it over the network, with no action from the victim."},"fix_prompt":"Check this codebase for CVE-2026-105206 and fix it if it is affected.\n\nWhat it is: CVE-2026-105206 is a medium-severity missing authorization vulnerability in zitadel, published on 4 Oct 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-2026-105206 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-2026-105206/ (Markdown: https://insights.sbomify.com/CVE-2026-105206/index.md)","id":"CVE-2026-105206","markdown":"https://insights.sbomify.com/CVE-2026-105206/index.md","name":"CVE-2026-105206","record":{"aliases":["GHSA-j344-gqv4-84ff","GHSA-pmw5-r3fq-5gm7"],"analysis":{"component_type":"server_software","fix_type":"upgrade","impacts":["data_read","security_bypass"],"network_reachable":"yes","non_default_config":false,"product_category":"Identity and Access Management","requires_auth":"low_privilege","summary":"Authenticated users can enumerate authentication methods of users in other organizations due to incorrect authorization checks in the User Service API.","user_interaction":"not_required","vuln_class":"missing_authorization"},"analysis_generated_by":"qwen3.8-flash-next","assigner":"VulnCheck","cpe":[],"cvss":{"score":5.3,"severity":"medium","source":"cna","vector":"CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:L/VI:N/VA:N/SC:N/SI:N/SA:N","version":"4.0"},"cwes":[{"id":"CWE-863","name":"Incorrect Authorization"}],"description":"ZITADEL 3.0.0 through 3.4.15 and 4.x before 4.17.3 contains an incorrect authorization flaw in the User Service API, which verifies user.read against the caller's organization rather than the organization owning the target user. An authenticated member holding org-scoped user.read can query GET /v2/users/{userId}/authentication_methods to learn which authentication method types users in other organizations have registered.","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 before 4.17.3 Cross-Organization Authentication Method Enumeration via User Service","id":"CVE-2026-105206","indexable":true,"kev":null,"kind":"cve","links":{"ecosystem":null,"product":null,"products":[],"type":"missing_authorization","year":"2026"},"n_packages":0,"n_references":2,"next":{"headline":"ZITADEL before 4.17.3 Account Takeover via External IdP Linking","id":"CVE-2026-105207"},"packages":[],"prev":{"headline":"SiYuan before 3.8.5 Information Disclosure via /api/block/getDocInfo and getDocsInfo","id":"CVE-2026-105205"},"products":["zitadel"],"published":"2026-10-04","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":"partial"},"state":"PUBLISHED","updated":"2026-10-29","vendors":["zitadel"]},"summary":"Authenticated users can enumerate authentication methods of users in other organizations due to incorrect authorization checks in the User Service API.","url":"https://insights.sbomify.com/CVE-2026-105206/"}