{"answers":{"affected":"9 open source packages ship an affected version, including github.com/zitadel/zitadel/v2 and github.com/zitadel/zitadel. It affects 1 product.","exploited":"There is no known exploitation of CVE-2025-64103 in the wild and no public exploit code.","fix":"Upgrade github.com/zitadel/zitadel/v2 to 2.71.18 or later.","what":"CVE-2025-64103 is a high-severity authentication bypass vulnerability in zitadel, published on 29 Oct 2025. Any signed-in user can exploit it over the network, with no action from the victim."},"fix_prompt":"Check this codebase for CVE-2025-64103 and fix it if it is affected.\n\nWhat it is: CVE-2025-64103 is a high-severity authentication bypass vulnerability in zitadel, published on 29 Oct 2025. Any signed-in user can exploit it over the network, with no action from the victim.\nExploitation: There is no known exploitation of CVE-2025-64103 in the wild and no public exploit code.\n\nAffected packages and fixed versions:\n- github.com/zitadel/zitadel/v2 (Go): affected from 2.53.6 up to 2.53.9; no fix listed\n- github.com/zitadel/zitadel/v2 (Go): affected from 2.53.6 up to 2.53.9; no fix listed\n- github.com/zitadel/zitadel/v2 (Go): affected from 2.54.3 up to 2.54.10; no fix listed\n- github.com/zitadel/zitadel/v2 (Go): affected from 2.54.3 up to 2.54.10; no fix listed\n- github.com/zitadel/zitadel/v2 (Go): affected from 2.55.0; fixed in 2.71.18\n- github.com/zitadel/zitadel/v2 (Go): affected from 2.55.0; fixed in 2.71.18\n- github.com/zitadel/zitadel (Go): affected all versions; no fix listed\n- github.com/zitadel/zitadel (Go): affected all versions; fixed in 1.80.0-v2.20.0.20251029091250-b284f8474eed\n- github.com/zitadel/zitadel (Go): affected all versions; fixed in 1.80.0-v2.20.0.20251029091250-b284f8474eed\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-2025-64103/ (Markdown: https://insights.sbomify.com/CVE-2025-64103/index.md)","id":"CVE-2025-64103","markdown":"https://insights.sbomify.com/CVE-2025-64103/index.md","name":"CVE-2025-64103","record":{"aliases":["GHSA-cfjq-28r2-4jv5","GO-2025-4083"],"analysis":{"component_type":"server_software","fix_type":"upgrade","impacts":["account_takeover","security_bypass"],"network_reachable":"yes","non_default_config":true,"product_category":"Identity and Access Management","requires_auth":"low_privilege","summary":"Attackers can bypass second-factor authentication in Zitadel if MFA is configured but not strictly enforced by policy, potentially compromising accounts.","user_interaction":"not_required","vuln_class":"auth_bypass"},"analysis_generated_by":"qwen3.8-flash-next","assigner":"GitHub_M","cpe":[{"product":"zitadel","vendor":"zitadel"}],"cvss":{"score":8.7,"severity":"high","source":"cna","vector":"CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N","version":"4.0"},"cwes":[{"id":"CWE-308","name":"Use of Single-factor Authentication"},{"id":"CWE-287","name":"Improper Authentication"}],"description":"Starting from 2.53.6, 2.54.3, and 2.55.0, Zitadel only required multi factor authentication in case the login policy has either enabled requireMFA or requireMFAForLocalUsers. If a user has set up MFA without this requirement, Zitadel would consider single factor auhtenticated sessions as valid as well and not require multiple factors. Bypassing second authentication factors weakens multifactor authentication and enables attackers to bypass the more secure factor. An attacker can target the TOTP code alone, only six digits, bypassing password verification entirely and potentially compromising accounts with 2FA enabled. This vulnerability is fixed in 4.6.0, 3.4.3, and 2.71.18.","ecosystems":["Go"],"exploits":{"exploitdb":0,"first_seen":null,"github_poc":0,"max_poc_stars":null,"metasploit":0,"nuclei":0,"refs":[],"tier":"none_known"},"has_fix":true,"headline":"Zitadel Bypass Second Authentication Factor","id":"CVE-2025-64103","indexable":true,"kev":null,"kind":"cve","links":{"ecosystem":"Go","product":null,"products":[],"type":"auth_bypass","year":"2025"},"n_packages":9,"n_references":2,"next":{"headline":"LangGraph SQLite Checkpoint Filter Key SQL Injection POC for SqliteStore","id":"CVE-2025-64104"},"packages":[{"ecosystem":"Go","fixed":[],"introduced":["0"],"last_affected":[],"package":"github.com/zitadel/zitadel","purl":"pkg:golang/github.com/zitadel/zitadel","source":"GO-2025-4083"},{"ecosystem":"Go","fixed":["1.80.0-v2.20.0.20251029091250-b284f8474eed"],"introduced":["0"],"last_affected":[],"package":"github.com/zitadel/zitadel","purl":null,"source":"GHSA-cfjq-28r2-4jv5"},{"ecosystem":"Go","fixed":["1.80.0-v2.20.0.20251029091250-b284f8474eed"],"introduced":["0"],"last_affected":[],"package":"github.com/zitadel/zitadel","purl":"pkg:golang/github.com/zitadel/zitadel","source":"GHSA-cfjq-28r2-4jv5"},{"ecosystem":"Go","fixed":[],"introduced":["2.53.6"],"last_affected":["2.53.9"],"package":"github.com/zitadel/zitadel/v2","purl":null,"source":"GHSA-cfjq-28r2-4jv5"},{"ecosystem":"Go","fixed":[],"introduced":["2.53.6"],"last_affected":["2.53.9"],"package":"github.com/zitadel/zitadel/v2","purl":"pkg:golang/github.com/zitadel/zitadel/v2","source":"GHSA-cfjq-28r2-4jv5"},{"ecosystem":"Go","fixed":[],"introduced":["2.54.3"],"last_affected":["2.54.10"],"package":"github.com/zitadel/zitadel/v2","purl":null,"source":"GHSA-cfjq-28r2-4jv5"},{"ecosystem":"Go","fixed":[],"introduced":["2.54.3"],"last_affected":["2.54.10"],"package":"github.com/zitadel/zitadel/v2","purl":"pkg:golang/github.com/zitadel/zitadel/v2","source":"GHSA-cfjq-28r2-4jv5"},{"ecosystem":"Go","fixed":["2.71.18"],"introduced":["2.55.0"],"last_affected":[],"package":"github.com/zitadel/zitadel/v2","purl":null,"source":"GHSA-cfjq-28r2-4jv5"},{"ecosystem":"Go","fixed":["2.71.18"],"introduced":["2.55.0"],"last_affected":[],"package":"github.com/zitadel/zitadel/v2","purl":"pkg:golang/github.com/zitadel/zitadel/v2","source":"GHSA-cfjq-28r2-4jv5"}],"prev":{"headline":"Zitadel allows brute-forcing authentication factors","id":"CVE-2025-64102"},"products":["zitadel"],"published":"2025-10-29","related":[{"cvss_score":9.3,"headline":"ZITADEL: 1-Click Account Takeover via XSS in /saml-post Endpoint","id":"CVE-2026-29191","kev_date_added":null,"published":"2026-03-07"},{"cvss_score":9.3,"headline":"ZITADEL Vulnerable to Unauthenticated Full-Read SSRF via V2 Login","id":"CVE-2025-67494","kev_date_added":null,"published":"2025-12-09"},{"cvss_score":9,"headline":"IDOR Vulnerabilities in ZITADEL's Admin API that Primarily Impact LDAP Configurations","id":"CVE-2025-27507","kev_date_added":null,"published":"2025-03-04"},{"cvss_score":8.7,"headline":"Zitadel Expired JWT Keys Usable for Authorization Grants","id":"CVE-2025-31123","kev_date_added":null,"published":"2025-03-31"},{"cvss_score":8.7,"headline":"ZITADEL Improper Content-Type Validation Leads to Account Takeover via Stored XSS + CSP Bypass","id":"CVE-2024-29891","kev_date_added":null,"published":"2024-03-27"},{"cvss_score":8.7,"headline":"XSS with User Avatar image in ZITADEL","id":"CVE-2023-46238","kev_date_added":null,"published":"2023-10-26"}],"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":"CC BY 4.0","name":"Go Vulnerability Database","prefix":"GO"},{"class":"attribution","licence":"US public information, NVD API terms","name":"NVD"},{"class":"attribution","licence":"CWE Terms of Use","name":"CWE (MITRE)"},{"class":"attribution","licence":"FIRST CVSS licence","name":"CVSS (FIRST)"}],"ssvc":{"automatable":"yes","exploitation":"none","technical_impact":"total"},"state":"PUBLISHED","updated":"2025-10-30","vendors":["zitadel"]},"summary":"Attackers can bypass second-factor authentication in Zitadel if MFA is configured but not strictly enforced by policy, potentially compromising accounts.","url":"https://insights.sbomify.com/CVE-2025-64103/"}