{"answers":{"affected":"3 open source packages ship an affected version, including github.com/zitadel/zitadel.","exploited":"There is no known exploitation of CVE-2026-56668 in the wild and no public exploit code.","fix":"Upgrade github.com/zitadel/zitadel to 4.15.3 or later.","what":"CVE-2026-56668 is a high-severity vulnerability in zitadel, published on 10 Jul 2026. Any signed-in user can exploit it over the network, with no action from the victim."},"fix_prompt":"Check this codebase for CVE-2026-56668 and fix it if it is affected.\n\nWhat it is: CVE-2026-56668 is a high-severity vulnerability in zitadel, published on 10 Jul 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-2026-56668 in the wild and no public exploit code.\n\nAffected packages and fixed versions:\n- github.com/zitadel/zitadel (Go): affected all versions; no fix listed\n- github.com/zitadel/zitadel (Go): affected all versions; fixed in 4.15.3\n- github.com/zitadel/zitadel (Go): affected all versions; fixed in 4.15.3\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-2026-56668/ (Markdown: https://insights.sbomify.com/CVE-2026-56668/index.md)","id":"CVE-2026-56668","markdown":"https://insights.sbomify.com/CVE-2026-56668/index.md","name":"CVE-2026-56668","record":{"aliases":["GHSA-vrh8-c9cm-wh8v","GO-2026-6474"],"analysis":{"component_type":"server_software","fix_type":"upgrade","impacts":["privilege_escalation","security_bypass"],"network_reachable":"yes","non_default_config":false,"product_category":"Identity management platform","requires_auth":"low_privilege","summary":"Attackers can exchange low-privilege tokens for elevated permissions in other applications due to missing validation in ZITADEL's OAuth2 token exchange endpoint.","user_interaction":"not_required","vuln_class":"privilege_escalation"},"analysis_generated_by":"qwen3.8-flash-next","assigner":"GitHub_M","cpe":[],"cvss":{"score":8.1,"severity":"high","source":"cna","vector":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:N","version":"3.1"},"cwes":[{"id":"CWE-862","name":"Missing Authorization"}],"description":"ZITADEL is an open source identity management platform. Prior to 4.15.3, ZITADEL's OAuth2 Token Exchange endpoint for urn:ietf:params:oauth:grant-type:token-exchange does not verify that the subject token belongs to the requesting client or that requested scopes remain within the original token's scopes, allowing a low-privilege token to be exchanged for elevated permissions at another application. This issue is fixed in version 4.15.3.","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: Unauthorized Token Privilege Escalation in OAuth2 Token Exchange","id":"CVE-2026-56668","indexable":true,"kev":null,"kind":"cve","links":{"ecosystem":"Go","product":null,"products":[],"type":"privilege_escalation","year":"2026"},"n_packages":3,"n_references":3,"next":{"headline":"Elysia: Inefficient Algorithmic Complexity and Interpretation Conflict","id":"CVE-2026-56669"},"packages":[{"ecosystem":"Go","fixed":[],"introduced":["0"],"last_affected":[],"package":"github.com/zitadel/zitadel","purl":"pkg:golang/github.com/zitadel/zitadel","source":"GO-2026-6474"},{"ecosystem":"Go","fixed":["4.15.3"],"introduced":["0"],"last_affected":[],"package":"github.com/zitadel/zitadel","purl":null,"source":"GHSA-vrh8-c9cm-wh8v"},{"ecosystem":"Go","fixed":["4.15.3"],"introduced":["0"],"last_affected":[],"package":"github.com/zitadel/zitadel","purl":"pkg:golang/github.com/zitadel/zitadel","source":"GHSA-vrh8-c9cm-wh8v"}],"prev":{"headline":"ZITADEL: Stored XSS via Default URI Redirect in Login V2","id":"CVE-2026-56667"},"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":"2026-07-14","vendors":["zitadel"]},"summary":"Attackers can exchange low-privilege tokens for elevated permissions in other applications due to missing validation in ZITADEL's OAuth2 token exchange endpoint.","url":"https://insights.sbomify.com/CVE-2026-56668/"}