{"id":"CVE-2026-48096","aliases":["GHSA-8396-jffm-qx4w","GO-2026-5239"],"title":"OpenFGA has cache-key delimiter injection in shared-iterator and v2 iterator that caches enables intra-store authorization-decision poiso…","summary":"OpenFGA has cache-key delimiter injection in shared-iterator and v2 iterator that caches enables intra-store authorization-decision poisoning","severity":"medium","cvss":5,"cvssVector":"CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:L/I:L/A:L","vendor":"openfga","product":"github.com/openfga/openfga","ecosystem":"go","affected":["github.com/openfga/openfga < 1.16.0"],"patched":["github.com/openfga/openfga 1.16.0"],"published":"2026-06-11","updated":"2026-09-10","sourceUpdated":"2026-09-10T03:51:08.128297117Z","source":"OSV","sourceUrl":"https://osv.dev/vulnerability/GHSA-8396-jffm-qx4w","references":[{"url":"https://github.com/openfga/openfga/security/advisories/GHSA-8396-jffm-qx4w"},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2026-48096"},{"url":"https://github.com/openfga/openfga"},{"url":"https://github.com/openfga/openfga/releases/tag/v1.16.0"},{"url":"https://github.com/advisories/GHSA-8396-jffm-qx4w"}],"tags":["osv","go","ghsa"],"epss":0.00101,"epssPercentile":0.01009,"cwe":["CWE-345","CWE-668"],"ingestedAt":"2026-07-07T15:41:59.291Z","slug":"CVE-2026-48096","body":"## Overview\n\n### Description\nIn OpenFGA, when iterator caching is enabled, two distinct check requests can produce the same cache key, leading to OpenFGA reusing an earlier cached result for a subsequent request.\n\n### Preconditions\nThis applies if the following preconditions are present:\n\n- FGA runs with SharedIteratorCache enabled,\n- FGA runs with ListObjectsIteratorCache enabled.\n\n### Fix\nUpgrade to version 1.16.0 or greater.\n\n### Acknowledgements\nOpenFGA would like to thank @j4xT for the discovery and the detailed report.\n\n## Affected packages\n\n- `github.com/openfga/openfga < 1.16.0`\n\n## Remediation\n\nUpgrade to a patched release:\n\n- `github.com/openfga/openfga 1.16.0`","depth":"sunlit","depthScore":28,"depthScoreParts":{"impact":27.5,"likelihood":0,"exploitation":0,"ransomware":0},"changes":[]}