{"id":"CVE-2026-59889","aliases":["GHSA-5gvw-p9qm-jgwh"],"url":"https://o3.security/vulnerability/CVE-2026-59889","summary":"jackson-databind: @JsonView ypassed for @JsonUnwrapped container properties on deserialization","details":"jackson-databind contains the general-purpose data-binding functionality and tree-model for Jackson Data Processor. From 2.18.0 until 2.18.9, 2.21.5, 2.22.1, 3.1.5, and 3.2.1, UnwrappedPropertyHandler.processUnwrapped() replays buffered JSON for a @JsonUnwrapped property and calls prop.deserializeAndSet() without a prop.visibleInView(ctxt.getActiveView()) guard, allowing a property annotated with both @JsonView and @JsonUnwrapped to be written from attacker JSON under a less-privileged active view. This issue is fixed in versions 2.18.9, 2.21.5, 2.22.1, 3.1.5, and 3.2.1.","published":"2026-07-14T19:57:48.473Z","modified":"2026-08-12T16:41:39.173402Z","cvss":{"score":6.5,"severity":"MEDIUM","vector":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:H/A:N"},"epss":{"score":0.00346,"percentile":0.27458,"asOf":"2026-09-05"},"cisaKev":null,"exploitsKnown":0,"affectedPackages":[{"ecosystem":"Maven","name":"com.fasterxml.jackson.core:jackson-databind","fixedVersion":"2.21.5"},{"ecosystem":"Maven","name":"tools.jackson.core:jackson-databind","fixedVersion":"3.1.5"},{"ecosystem":"Maven","name":"com.fasterxml.jackson.core:jackson-databind","fixedVersion":"2.18.9"},{"ecosystem":"Maven","name":"com.fasterxml.jackson.core:jackson-databind","fixedVersion":"2.22.1"},{"ecosystem":"Maven","name":"tools.jackson.core:jackson-databind","fixedVersion":"3.2.1"}],"fix":{"url":"https://github.com/FasterXML/jackson-databind/commit/d627a8a86fcb062429282f79f3f256f181ed2c7b","label":"FasterXML/jackson-databind@d627a8a"},"references":[{"type":"ADVISORY","url":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/59xxx/CVE-2026-59889.json"},{"type":"ADVISORY","url":"https://github.com/FasterXML/jackson-databind/security/advisories/GHSA-5gvw-p9qm-jgwh"},{"type":"ADVISORY","url":"https://nvd.nist.gov/vuln/detail/CVE-2026-59889"},{"type":"REPORT","url":"https://github.com/FasterXML/jackson-databind/issues/6060"},{"type":"FIX","url":"https://github.com/FasterXML/jackson-databind/commit/d627a8a86fcb062429282f79f3f256f181ed2c7b"},{"type":"FIX","url":"https://github.com/FasterXML/jackson-databind/pull/6056"}],"provenance":{"sources":["OSV.dev","FIRST.org (EPSS)"],"lastVerified":"2026-08-12T16:41:39.173402Z"}}