{"id":"CVE-2025-55213","aliases":["EUVD-2025-25151","GHSA-mgh9-4mwp-fg55","GO-2025-3894"],"status":"published","title":"OpenFGA Authorization Bypass (Check)","description":"OpenFGA is a high-performance and flexible authorization/permission engine built for developers and inspired by Google Zanzibar. OpenFGA v1.9.3 to v1.9.4 ( openfga-0.2.40 \u003c= Helm chart \u003c= openfga-0.2.41, v1.9.3 \u003c= docker \u003c= v.1.9.4) are vulnerable to improper policy enforcement when certain Check and ListObject calls are executed. This vulnerability is fixed in 1.9.5.","severity":{"version":"4.0","score":5.8,"vector":"CVSS:4.0/AV:N/AC:L/AT:P/PR:L/UI:N/VC:N/VI:N/VA:N/SC:H/SI:H/SA:H","level":"medium","assessor":"cna","from":"cve"},"epss":{"day":"2026-11-11","score":0.00343,"percentile":0.28243,"model":"v2026.06.15"},"facts":{"in_kev":false,"known_exploited":false,"public_exploit":false,"fix_available":true},"cwes":["CWE-863"],"published":"2025-08-18T19:23:33Z","modified":"2026-10-28T02:31:01Z","fixes":[{"ecosystem":"Go","package":"github.com/openfga/openfga","fixed_in":["1.9.5"],"sources":["ghsa","osv"]}],"affected":[{"source":"ghsa","ecosystem":"Go","package":"github.com/openfga/openfga","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"1.9.3"},{"fixed":"1.9.5"}]}]},{"source":"osv","ecosystem":"Go","package":"github.com/openfga/openfga","ranges":[{"type":"SEMVER","events":[{"introduced":"1.9.3"},{"fixed":"1.9.5"}]}]},{"source":"osv","ecosystem":"Go","package":"github.com/openfga/openfga","ranges":[{"type":"SEMVER","events":[{"introduced":"1.9.3"},{"fixed":"1.9.5"}]}]}],"products":[{"vendor":"openfga","product":"helm_charts"},{"vendor":"openfga","product":"openfga"}],"references":[{"url":"https://github.com/openfga/openfga/security/advisories/GHSA-mgh9-4mwp-fg55","tags":["x_refsource_CONFIRM","Patch","Vendor Advisory","advisory","web"]},{"url":"https://github.com/openfga/openfga/commit/1a7e0e37fc4777c824b2386cac4867a66f3480b0","tags":["x_refsource_MISC","Patch","fix","web"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2025-55213","tags":["advisory"]},{"url":"https://pkg.go.dev/vuln/GO-2025-3894","tags":["web"]},{"url":"https://github.com/advisories/GHSA-mgh9-4mwp-fg55"},{"url":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2025/55xxx/CVE-2025-55213.json","tags":["advisory"]},{"url":"https://github.com/openfga/openfga","tags":["package"]}],"sources":{"cve":[{"id":"CVE-2025-55213","title":"OpenFGA Authorization Bypass (Check)","description":"OpenFGA is a high-performance and flexible authorization/permission engine built for developers and inspired by Google Zanzibar. OpenFGA v1.9.3 to v1.9.4 ( openfga-0.2.40 \u003c= Helm chart \u003c= openfga-0.2.41, v1.9.3 \u003c= docker \u003c= v.1.9.4) are vulnerable to improper policy enforcement when certain Check and ListObject calls are executed. This vulnerability is fixed in 1.9.5.","status":"published","published":"2025-08-18T19:23:33.684Z","modified":"2025-08-18T19:49:55.886Z","cvss":[{"version":"4.0","score":5.8,"vector":"CVSS:4.0/AV:N/AC:L/AT:P/PR:L/UI:N/VC:N/VI:N/VA:N/SC:H/SI:H/SA:H","level":"medium","assessor":"cna"}],"cwes":["CWE-863"],"updated_at":"2026-11-02T14:32:52.526476Z"}],"euvd":[{"id":"EUVD-2025-25151","description":"OpenFGA is a high-performance and flexible authorization/permission engine built for developers and inspired by Google Zanzibar. OpenFGA v1.9.3 to v1.9.4 ( openfga-0.2.40 \u003c= Helm chart \u003c= openfga-0.2.41, v1.9.3 \u003c= docker \u003c= v.1.9.4) are vulnerable to improper policy enforcement when certain Check and ListObject calls are executed. This vulnerability is fixed in 1.9.5.","status":"published","published":"2025-08-18T19:23:33Z","modified":"2025-08-18T19:49:55Z","cvss":[{"version":"4.0","score":5.8,"vector":"CVSS:4.0/AV:N/AC:L/AT:P/PR:L/UI:N/VC:N/VI:N/VA:N/SC:H/SI:H/SA:H","level":"medium"}],"updated_at":"2026-11-02T20:31:56.298799Z"}],"ghsa":[{"id":"GHSA-mgh9-4mwp-fg55","title":"OpenFGA Authorization Bypass ","description":"### Overview\nOpenFGA v1.9.3 to v1.9.4 ( openfga-0.2.40 \u003c= Helm chart \u003c= openfga-0.2.41, v1.9.3 \u003c= docker \u003c= v.1.9.4) are vulnerable to improper policy enforcement when certain Check and ListObject calls are executed.\n\n### Am I Affected?\nYou are affected by this vulnerability if you are using OpenFGA v1.9.3 to v1.9.4, specifically under the following preconditions:\n- Calling Check API or ListObjects with an [authorization model](https://openfga.dev/docs/concepts#what-is-an-authorization-model) that has a relationship directly assignable by more than 1 [userset](https://openfga.dev/docs/modeling/building-blocks/usersets) with same [type](https://openfga.dev/docs/concepts#what-is-a-type), and\n- There are check or list object queries that rely on the above relationship, and\n- You have userset tuples that are assigned to the above relationship\n\n\n### Fix\nUpgrade to v1.9.5. This upgrade is backwards compatible.\n\n### Workaround\nDowngrade to v1.9.2 with enable-check-optimizations removed from OPENFGA_EXPERIMENTALS\n\n### Acknowledgments\nOpenFGA would like Dominic Harries and rrozza-apolitical to thank for discovering this vulnerability.","status":"published","published":"2025-08-18T21:00:52Z","modified":"2025-08-29T20:35:57Z","cvss":[{"version":"4.0","score":5.8,"vector":"CVSS:4.0/AV:N/AC:L/AT:P/PR:L/UI:N/VC:N/VI:N/VA:N/SC:H/SI:H/SA:H","level":"medium"}],"cwes":["CWE-863"],"updated_at":"2026-11-02T14:38:55.953734Z"}],"nvd":[{"id":"CVE-2025-55213","description":"OpenFGA is a high-performance and flexible authorization/permission engine built for developers and inspired by Google Zanzibar. OpenFGA v1.9.3 to v1.9.4 ( openfga-0.2.40 \u003c= Helm chart \u003c= openfga-0.2.41, v1.9.3 \u003c= docker \u003c= v.1.9.4) are vulnerable to improper policy enforcement when certain Check and ListObject calls are executed. This vulnerability is fixed in 1.9.5.","status":"published","published":"2025-08-18T20:15:29.897Z","modified":"2026-06-17T09:41:28.17Z","cvss":[{"version":"4.0","score":5.8,"vector":"CVSS:4.0/AV:N/AC:L/AT:P/PR:L/UI:N/VC:N/VI:N/VA:N/SC:H/SI:H/SA:H/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X","level":"medium","assessor":"secondary"},{"version":"3.1","score":9.8,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H","level":"critical","assessor":"primary"}],"cwes":["CWE-863"],"updated_at":"2026-11-02T14:11:24.730342Z"}],"osv":[{"id":"CVE-2025-55213","title":"OpenFGA Authorization Bypass (Check)","description":"OpenFGA is a high-performance and flexible authorization/permission engine built for developers and inspired by Google Zanzibar. OpenFGA v1.9.3 to v1.9.4 ( openfga-0.2.40 \u003c= Helm chart \u003c= openfga-0.2.41, v1.9.3 \u003c= docker \u003c= v.1.9.4) are vulnerable to improper policy enforcement when certain Check and ListObject calls are executed. This vulnerability is fixed in 1.9.5.","status":"published","published":"2025-08-18T19:23:33.684Z","modified":"2026-10-28T02:31:01.547905485Z","cvss":[{"version":"4.0","score":5.8,"vector":"CVSS:4.0/AV:N/AC:L/AT:P/PR:L/UI:N/VC:N/VI:N/VA:N/SC:H/SI:H/SA:H","level":"medium"}],"cwes":["CWE-863"],"updated_at":"2026-11-02T15:44:50.863921Z"},{"id":"GHSA-mgh9-4mwp-fg55","title":"OpenFGA Authorization Bypass ","description":"### Overview\nOpenFGA v1.9.3 to v1.9.4 ( openfga-0.2.40 \u003c= Helm chart \u003c= openfga-0.2.41, v1.9.3 \u003c= docker \u003c= v.1.9.4) are vulnerable to improper policy enforcement when certain Check and ListObject calls are executed.\n\n### Am I Affected?\nYou are affected by this vulnerability if you are using OpenFGA v1.9.3 to v1.9.4, specifically under the following preconditions:\n- Calling Check API or ListObjects with an [authorization model](https://openfga.dev/docs/concepts#what-is-an-authorization-model) that has a relationship directly assignable by more than 1 [userset](https://openfga.dev/docs/modeling/building-blocks/usersets) with same [type](https://openfga.dev/docs/concepts#what-is-a-type), and\n- There are check or list object queries that rely on the above relationship, and\n- You have userset tuples that are assigned to the above relationship\n\n\n### Fix\nUpgrade to v1.9.5. This upgrade is backwards compatible.\n\n### Workaround\nDowngrade to v1.9.2 with enable-check-optimizations removed from OPENFGA_EXPERIMENTALS\n\n### Acknowledgments\nOpenFGA would like Dominic Harries and rrozza-apolitical to thank for discovering this vulnerability.","status":"published","published":"2025-08-18T21:00:52Z","modified":"2025-08-29T20:35:56Z","cvss":[{"version":"4.0","score":5.8,"vector":"CVSS:4.0/AV:N/AC:L/AT:P/PR:L/UI:N/VC:N/VI:N/VA:N/SC:H/SI:H/SA:H","level":"medium"}],"cwes":["CWE-863"],"updated_at":"2026-11-02T15:46:51.811331Z"},{"id":"GO-2025-3894","title":"OpenFGA Authorization Bypass in github.com/openfga/openfga","description":"OpenFGA Authorization Bypass in github.com/openfga/openfga","status":"published","published":"2025-08-29T14:52:20Z","modified":"2026-03-03T04:56:50.427525Z","updated_at":"2026-11-02T15:47:01.728182Z"}]}}