{"answers":{"affected":"3 open source packages ship an affected version, including github.com/openfga/openfga. It affects 1 product.","exploited":"There is no known exploitation of CVE-2023-40579 in the wild and no public exploit code.","fix":"Upgrade github.com/openfga/openfga to 1.3.1 or later.","what":"CVE-2023-40579 is a medium-severity authentication bypass vulnerability in openfga, published on 25 Aug 2023. Any signed-in user can exploit it over the network, with no action from the victim."},"fix_prompt":"Check this codebase for CVE-2023-40579 and fix it if it is affected.\n\nWhat it is: CVE-2023-40579 is a medium-severity authentication bypass vulnerability in openfga, published on 25 Aug 2023. Any signed-in user can exploit it over the network, with no action from the victim.\nExploitation: There is no known exploitation of CVE-2023-40579 in the wild and no public exploit code.\n\nAffected packages and fixed versions:\n- github.com/openfga/openfga (Go): affected all versions; fixed in 1.3.1\n- github.com/openfga/openfga (Go): affected all versions; fixed in 1.3.1\n- github.com/openfga/openfga (Go): affected all versions; fixed in 1.3.1\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-2023-40579/ (Markdown: https://insights.sbomify.com/CVE-2023-40579/index.md)","id":"CVE-2023-40579","markdown":"https://insights.sbomify.com/CVE-2023-40579/index.md","name":"CVE-2023-40579","record":{"aliases":["GHSA-jcf2-mxr2-gmqp","GO-2023-2028"],"analysis":{"component_type":"server_software","fix_type":"upgrade","impacts":["security_bypass"],"network_reachable":"yes","non_default_config":true,"product_category":"OpenFGA authorization engine","requires_auth":"low_privilege","summary":"Attackers can bypass authorization checks in OpenFGA when using specific model expressions with the ListObjects API.","user_interaction":"not_required","vuln_class":"auth_bypass"},"analysis_generated_by":"qwen3.8-flash-next","assigner":"GitHub_M","cpe":[{"product":"openfga","vendor":"openfga"}],"cvss":{"score":6.5,"severity":"medium","source":"cna","vector":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N","version":"3.1"},"cwes":[{"id":"CWE-284","name":"Improper Access Control"}],"description":"OpenFGA is an authorization/permission engine built for developers and inspired by Google Zanzibar. Some end users of OpenFGA v1.3.0 or earlier are vulnerable to authorization bypass when calling the ListObjects API. The vulnerability affects customers using `ListObjects` with specific models. The affected models contain expressions of type `rel1 from type1`. This issue has been patched in version 1.3.1.","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":"OpenFGA Authorization Bypass","id":"CVE-2023-40579","indexable":true,"kev":null,"kind":"cve","links":{"ecosystem":"Go","product":null,"products":[],"type":"auth_bypass","year":"2023"},"n_packages":3,"n_references":2,"next":{"headline":"Freighter mnemonic phrase may be accessed by Javascript through a private API","id":"CVE-2023-40580"},"packages":[{"ecosystem":"Go","fixed":["1.3.1"],"introduced":["0"],"last_affected":[],"package":"github.com/openfga/openfga","purl":null,"source":"GHSA-jcf2-mxr2-gmqp"},{"ecosystem":"Go","fixed":["1.3.1"],"introduced":["0"],"last_affected":[],"package":"github.com/openfga/openfga","purl":"pkg:golang/github.com/openfga/openfga","source":"GHSA-jcf2-mxr2-gmqp"},{"ecosystem":"Go","fixed":["1.3.1"],"introduced":["0"],"last_affected":[],"package":"github.com/openfga/openfga","purl":"pkg:golang/github.com/openfga/openfga","source":"GO-2023-2028"}],"prev":{"headline":"Alertmanager UI is vulnerable to stored XSS via the /api/v1/alerts endpoint","id":"CVE-2023-40577"},"products":["openfga"],"published":"2023-08-25","related":[{"cvss_score":8.1,"headline":"OpenFGA Authorization Bypass","id":"CVE-2024-31452","kev_date_added":null,"published":"2024-04-16"},{"cvss_score":7.7,"headline":"OpenFGA Authorization Bypass","id":"CVE-2022-23542","kev_date_added":null,"published":"2022-12-20"},{"cvss_score":7.5,"headline":"OpenFGA Authorization Bypass","id":"CVE-2024-42473","kev_date_added":null,"published":"2024-08-09"},{"cvss_score":6.5,"headline":"OpenFGA Playground Preshared Key Exposure","id":"CVE-2026-40293","kev_date_added":null,"published":"2026-04-17"},{"cvss_score":5.9,"headline":"Denial of service from circular relationship definitions in OpenFGA","id":"CVE-2023-43645","kev_date_added":null,"published":"2023-09-26"},{"cvss_score":5.9,"headline":"OpenFGA denial of service die to circular relationship","id":"CVE-2023-35933","kev_date_added":null,"published":"2023-06-26"}],"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":"no","exploitation":"none","technical_impact":"partial"},"state":"PUBLISHED","updated":"2024-10-01","vendors":["openfga"]},"summary":"Attackers can bypass authorization checks in OpenFGA when using specific model expressions with the ListObjects API.","url":"https://insights.sbomify.com/CVE-2023-40579/"}