{"items":[{"id":"NVI-00016269","kind":"vulnerability","title":"jackson-databind: `@JsonView` bypass for creator properties with `@JsonTypeInfo(include=As.EXTERNAL_PROPERTY)`","revision":1,"unknowns":["Customer inventory, deployment, reachability and exploitation have not been inspected."],"lifecycle":"active","identifiers":["GHSA-mhm7-754m-9p8w"],"plain_summary":"GitHub lists this reviewed advisory for com.fasterxml.jackson.core:jackson-databind, com.fasterxml.jackson.core:jackson-databind. 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-5bd7269f4b27098476c91999f43f99be"],"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":"2026-07-21T19:40:13.000Z","value":"6.5 medium","meaning":"GitHub source severity; exploitability and local consequence require separate evidence.","source_id":"sr-5bd7269f4b27098476c91999f43f99be"}],"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-5bd7269f4b27098476c91999f43f99be","url":"https://github.com/advisories/GHSA-mhm7-754m-9p8w","basis":"vendor_advisory","notes":"GitHub Advisory Database; CC-BY-4.0. Each advisory links its original attribution. Null normalizes fields.","title":"GHSA-mhm7-754m-9p8w","publisher":"GitHub Advisory Database","observed_at":"2026-11-03T22:34:39.734Z"}],"affected_context":[{"certainty":"source_listed","source_ids":["sr-5bd7269f4b27098476c91999f43f99be"],"technology":"com.fasterxml.jackson.core:jackson-databind","known_exclusions":[],"conditions_summary":"## Summary\n\nIn `BeanDeserializer.deserializeUsingPropertyBasedWithExternalTypeId`, the active-view (`@JsonView`) filter was applied only to the regular bean-property branch; the creator-property branch performed no `creatorProp.visibleInView(activeView)` check. A constructor parameter annotated with both `@JsonView(RestrictedView.class)` and `@JsonTypeInfo(use=Id.NAME,\n  include=As.EXTERNAL_PROPERTY)` is populated from attacker JSON even when a more restrictive view is active.\n\n  This is a patch gap. GHSA-5hh8 (CVE-2026-54517) and GHSA-rcqc (CVE-2026-54518) descriptions cover only the main property-based path and the unwrapped-creator path respectively; the external-type-id creator path was fixed on the 3.x line via #6004 (\"Extend #5969/#5971 fixes to ... external-type-id case in regular BeanDeserializer\", commit 7dc7a17, 2026-05-22) but\n  **the fix was never backported to 2.21 or 2.18**. Users on 2.21.4 and 2.18.8 who upgraded per the published advisories remain vulnerable to the same `@JsonView` bypass technique via a different code path.\n\n## Vulnerable Code Path\n\nFile: `com/fasterxml/jackson/databind/deser/BeanDeserializer.java`\nMethod: `deserializeUsingPropertyBasedWithExternal","public_affected_ranges":[">= 2.18.0, <= 2.18.8"]},{"certainty":"source_listed","source_ids":["sr-5bd7269f4b27098476c91999f43f99be"],"technology":"com.fasterxml.jackson.core:jackson-databind","known_exclusions":[],"conditions_summary":"## Summary\n\nIn `BeanDeserializer.deserializeUsingPropertyBasedWithExternalTypeId`, the active-view (`@JsonView`) filter was applied only to the regular bean-property branch; the creator-property branch performed no `creatorProp.visibleInView(activeView)` check. A constructor parameter annotated with both `@JsonView(RestrictedView.class)` and `@JsonTypeInfo(use=Id.NAME,\n  include=As.EXTERNAL_PROPERTY)` is populated from attacker JSON even when a more restrictive view is active.\n\n  This is a patch gap. GHSA-5hh8 (CVE-2026-54517) and GHSA-rcqc (CVE-2026-54518) descriptions cover only the main property-based path and the unwrapped-creator path respectively; the external-type-id creator path was fixed on the 3.x line via #6004 (\"Extend #5969/#5971 fixes to ... external-type-id case in regular BeanDeserializer\", commit 7dc7a17, 2026-05-22) but\n  **the fix was never backported to 2.21 or 2.18**. Users on 2.21.4 and 2.18.8 who upgraded per the published advisories remain vulnerable to the same `@JsonView` bypass technique via a different code path.\n\n## Vulnerable Code Path\n\nFile: `com/fasterxml/jackson/databind/deser/BeanDeserializer.java`\nMethod: `deserializeUsingPropertyBasedWithExternal","public_affected_ranges":[">= 2.21.0, <= 2.21.4"]}],"null_published_at":"2026-11-04T10:04:27.925Z","source_updated_at":"2026-07-21T19:40:13.000Z","source_disclosed_at":"2026-07-21T19:40:12.000Z","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":"2026-11-03T22:34:39.734Z"}],"next_cursor":null,"snapshot_revision":"42594"}