{"answers":{"affected":"3 open source packages ship an affected version, including github.com/zitadel/zitadel.","exploited":"There is no known exploitation of CVE-2026-55672 in the wild and no public exploit code.","fix":"Upgrade github.com/zitadel/zitadel to 1.80.0-v2.20.0.20260616131956-0973b074b488 or later.","what":"CVE-2026-55672 is a high-severity authentication bypass vulnerability in zitadel, published on 10 Jul 2026. An attacker can exploit it over the internet without logging in, with no action from the victim."},"fix_prompt":"Check this codebase for CVE-2026-55672 and fix it if it is affected.\n\nWhat it is: CVE-2026-55672 is a high-severity authentication bypass vulnerability in zitadel, published on 10 Jul 2026. An attacker can exploit it over the internet without logging in, with no action from the victim.\nExploitation: There is no known exploitation of CVE-2026-55672 in the wild and no public exploit code.\n\nAffected packages and fixed versions:\n- github.com/zitadel/zitadel (Go): affected all versions; fixed in 1.80.0-v2.20.0.20260616131956-0973b074b488\n- github.com/zitadel/zitadel (Go): affected all versions; fixed in 1.80.0-v2.20.0.20260616131956-0973b074b488\n- github.com/zitadel/zitadel (Go): affected all versions; fixed in 1.80.0-v2.20.0.20260616131956-0973b074b488\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-2026-55672/ (Markdown: https://insights.sbomify.com/CVE-2026-55672/index.md)","id":"CVE-2026-55672","markdown":"https://insights.sbomify.com/CVE-2026-55672/index.md","name":"CVE-2026-55672","record":{"aliases":["GHSA-xqxv-4jc2-x56x","GO-2026-5768"],"analysis":{"component_type":"server_software","fix_type":"upgrade","impacts":["account_takeover","security_bypass"],"network_reachable":"yes","non_default_config":false,"product_category":"Identity management platform","requires_auth":"none","summary":"Attackers can exchange intercepted OAuth2 grants or refresh tokens under a different client ID, bypassing authentication checks in ZITADEL.","user_interaction":"not_required","vuln_class":"auth_bypass"},"analysis_generated_by":"qwen3.8-flash-next","assigner":"GitHub_M","cpe":[],"cvss":{"score":7.4,"severity":"high","source":"cna","vector":"CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:N","version":"3.1"},"cwes":[{"id":"CWE-863","name":"Incorrect Authorization"},{"id":"CWE-287","name":"Improper Authentication"}],"description":"ZITADEL is an open source identity management platform. Prior to 3.4.12 and 4.15.2, ZITADEL's OAuth2 and OIDC CodeExchange, RefreshToken, and device token flows fail to verify that the requesting client matches the client that initiated the authorization flow, allowing intercepted grants or refresh tokens to be exchanged under a different client. This issue is fixed in versions 3.4.12 and 4.15.2.","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: Missing client_id binding in OIDC authorization code exchange and refresh token flows (RFC 6749 Section 4.1.3 violation)","id":"CVE-2026-55672","indexable":true,"kev":null,"kind":"cve","links":{"ecosystem":"Go","product":null,"products":[],"type":"auth_bypass","year":"2026"},"n_packages":3,"n_references":5,"next":{"headline":"PowSyBl: Command Injection in LocalCommandExecutor-s","id":"CVE-2026-55673"},"packages":[{"ecosystem":"Go","fixed":["1.80.0-v2.20.0.20260616131956-0973b074b488"],"introduced":["0"],"last_affected":[],"package":"github.com/zitadel/zitadel","purl":null,"source":"GHSA-xqxv-4jc2-x56x"},{"ecosystem":"Go","fixed":["1.80.0-v2.20.0.20260616131956-0973b074b488"],"introduced":["0"],"last_affected":[],"package":"github.com/zitadel/zitadel","purl":"pkg:golang/github.com/zitadel/zitadel","source":"GHSA-xqxv-4jc2-x56x"},{"ecosystem":"Go","fixed":["1.80.0-v2.20.0.20260616131956-0973b074b488"],"introduced":["0"],"last_affected":[],"package":"github.com/zitadel/zitadel","purl":"pkg:golang/github.com/zitadel/zitadel","source":"GO-2026-5768"}],"prev":{"headline":"ZITADEL: Server-Side Request Forgery (SSRF) and Denylist Bypass in Outgoing HTTP Components","id":"CVE-2026-55671"},"products":["zitadel"],"published":"2026-07-10","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":"CC BY 4.0","name":"Go Vulnerability Database","prefix":"GO"},{"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":"2026-07-10","vendors":["zitadel"]},"summary":"Attackers can exchange intercepted OAuth2 grants or refresh tokens under a different client ID, bypassing authentication checks in ZITADEL.","url":"https://insights.sbomify.com/CVE-2026-55672/"}