{"items":[{"id":"NVI-00016362","kind":"vulnerability","title":"Cedar-Java has policy injection, type confusion, and incorrect equality comparison vulnerabilities","revision":1,"unknowns":["Customer inventory, deployment, reachability and exploitation have not been inspected."],"lifecycle":"active","identifiers":["GHSA-4r9r-4425-74p7","CVE-2026-55771"],"plain_summary":"GitHub lists this reviewed advisory for com.cedarpolicy:cedar-java, com.cedarpolicy:cedar-java, com.cedarpolicy:cedar-java. Published version ranges and source prerequisites are shown below; this is not an inspection of a visitor’s application.","review_status":"source_listed","control_topics":[],"public_actions":[{"summary":"Identify the exact component and deployed version, examine the linked publisher’s conditions, and retain evidence of any mitigation.","source_ids":["sr-6acab27e81428d52cc8fb68e6288b655"],"action_type":"investigate","limitations":"Confirm current vendor support, compatibility and deployment evidence. This report has not tested a fix in your system.","current_supported_target":null}],"schema_version":"1.1.0","source_metrics":[{"kind":"CVSS","as_of":"2026-07-28T14:50:25.000Z","value":"8.8 high","meaning":"GitHub source severity; exploitability and local consequence require separate evidence.","source_id":"sr-6acab27e81428d52cc8fb68e6288b655"}],"why_it_matters":"Published affected context helps an owner decide what evidence to gather. This report has not examined your application.","related_sources":[{"id":"sr-6acab27e81428d52cc8fb68e6288b655","url":"https://github.com/advisories/GHSA-4r9r-4425-74p7","basis":"vendor_advisory","notes":"GitHub Advisory Database; CC-BY-4.0. Each advisory links its original attribution. Null normalizes fields.","title":"GHSA-4r9r-4425-74p7","publisher":"GitHub Advisory Database","observed_at":"2026-11-03T09:59:04.660Z"}],"affected_context":[{"certainty":"source_listed","source_ids":["sr-6acab27e81428d52cc8fb68e6288b655"],"technology":"com.cedarpolicy:cedar-java","known_exclusions":[],"conditions_summary":"### Summary\n\nCedarJava is an open source Java implementation of the Cedar policy language, used for fine-grained authorization decisions. Under certain circumstances, it could lead to incorrect equality comparisons.\n\n### Impact\n\n**`EntityIdentifier.equals()` has inverted null/self branches**\n\nThe `EntityIdentifier.equals()` method has inverted logic for null and self-reference checks, returning true for null comparisons and false for self-comparisons. This does not affect Cedar authorization decisions (computed in Rust from JSON), but could affect integrators who perform their own equality checks on entity identifiers.\n\n### Impacted versions: \n< 4.9\n\n### Patches\nIt has been addressed in CedarJava version 4.9 and above. We recommend upgrading to the latest version and ensuring any forked or derivative code is patched to incorporate the new fixes.\n\n### Workarounds\nAvoid relying on `EntityIdentifier.equals()` for security-sensitive comparisons until upgraded to version `4.9`.\n\n### References\nIf you have any questions or comments about this advisory, Cedar asks that you contact us directly via email to cedar-policy-security@lists.cncf.io. P","public_affected_ranges":["< 2.3.6"]},{"certainty":"source_listed","source_ids":["sr-6acab27e81428d52cc8fb68e6288b655"],"technology":"com.cedarpolicy:cedar-java","known_exclusions":[],"conditions_summary":"### Summary\n\nCedarJava is an open source Java implementation of the Cedar policy language, used for fine-grained authorization decisions. Under certain circumstances, it could lead to incorrect equality comparisons.\n\n### Impact\n\n**`EntityIdentifier.equals()` has inverted null/self branches**\n\nThe `EntityIdentifier.equals()` method has inverted logic for null and self-reference checks, returning true for null comparisons and false for self-comparisons. This does not affect Cedar authorization decisions (computed in Rust from JSON), but could affect integrators who perform their own equality checks on entity identifiers.\n\n### Impacted versions: \n< 4.9\n\n### Patches\nIt has been addressed in CedarJava version 4.9 and above. We recommend upgrading to the latest version and ensuring any forked or derivative code is patched to incorporate the new fixes.\n\n### Workarounds\nAvoid relying on `EntityIdentifier.equals()` for security-sensitive comparisons until upgraded to version `4.9`.\n\n### References\nIf you have any questions or comments about this advisory, Cedar asks that you contact us directly via email to cedar-policy-security@lists.cncf.io. P","public_affected_ranges":[">= 3.1.2, < 3.4.1"]},{"certainty":"source_listed","source_ids":["sr-6acab27e81428d52cc8fb68e6288b655"],"technology":"com.cedarpolicy:cedar-java","known_exclusions":[],"conditions_summary":"### Summary\n\nCedarJava is an open source Java implementation of the Cedar policy language, used for fine-grained authorization decisions. Under certain circumstances, it could lead to incorrect equality comparisons.\n\n### Impact\n\n**`EntityIdentifier.equals()` has inverted null/self branches**\n\nThe `EntityIdentifier.equals()` method has inverted logic for null and self-reference checks, returning true for null comparisons and false for self-comparisons. This does not affect Cedar authorization decisions (computed in Rust from JSON), but could affect integrators who perform their own equality checks on entity identifiers.\n\n### Impacted versions: \n< 4.9\n\n### Patches\nIt has been addressed in CedarJava version 4.9 and above. We recommend upgrading to the latest version and ensuring any forked or derivative code is patched to incorporate the new fixes.\n\n### Workarounds\nAvoid relying on `EntityIdentifier.equals()` for security-sensitive comparisons until upgraded to version `4.9`.\n\n### References\nIf you have any questions or comments about this advisory, Cedar asks that you contact us directly via email to cedar-policy-security@lists.cncf.io. P","public_affected_ranges":[">= 4.0.0, < 4.9.0"]}],"null_published_at":"2026-11-04T10:04:27.936Z","source_updated_at":"2026-07-28T14:50:25.000Z","source_disclosed_at":"2026-07-28T14:50:25.000Z","is_synthetic_fixture":false,"null_last_reviewed_at":null,"public_change_summary":"First indexed by Null; source disclosure date is shown separately.","null_first_observed_at":"2026-11-03T09:59:04.660Z"}],"next_cursor":null,"snapshot_revision":"42594"}