{"id":"CVE-2026-54517","url":"https://www.cyber-defence.io/tools/cve/CVE-2026-54517","generatedAt":"2026-10-28T00:52:28.341Z","title":"From 2.21.0 until 2.21.4 and 3.1.4, in BeanDeserializer._deserializeUsingPropertyBased, the active-view (@JsonView) filter was applied only to creator properties; the regular property-buffering branch performed no prop.visibleInView(activeView) check.","description":"jackson-databind contains the general-purpose data-binding functionality and tree-model for Jackson Data Processor. From 2.21.0 until 2.21.4 and 3.1.4, in BeanDeserializer._deserializeUsingPropertyBased, the active-view (@JsonView) filter was applied only to creator properties; the regular property-buffering branch performed no prop.visibleInView(activeView) check. A change making SetterlessProperty.isMerging() return true routed setterless Collection/Map properties through this unguarded path, so a setterless collection annotated with a restricted @JsonView is populated from attacker JSON even when the active view excludes it. This vulnerability is fixed in 2.21.4 and 3.1.4.","published":"2026-06-23T21:17:03.000Z","lastModified":"2026-10-25T23:10:00.000Z","status":"Analyzed","sourceIdentifier":"security-advisories@github.com","cvss":{"version":"3.1","score":5.3,"severity":"MEDIUM","vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N"},"cwe":["CWE-863"],"affected":["fasterxml/jackson-databind"],"epss":{"score":0.00384,"percentile":0.32223,"date":"2026-10-26","history":[]},"kev":{"listed":false},"exploits":{"count":0,"verified":false,"firstPublished":null,"source":"Exploit-DB (https://gitlab.com/exploit-database/exploitdb)","entries":[]},"verdict":{"level":"low","text":"Lower severity and a low EPSS score (0.38%). Track it; it rarely justifies an emergency change on its own."},"changes":[],"references":[{"url":"https://github.com/FasterXML/jackson-databind/commit/5bf23edb4221f7dd2ec8e71ff6d26c61640f261d","tags":["Patch"],"source":"security-advisories@github.com"},{"url":"https://github.com/FasterXML/jackson-databind/commit/94c5d215b3af1505098c686405d9641f041a9962","tags":["Patch"],"source":"security-advisories@github.com"},{"url":"https://github.com/FasterXML/jackson-databind/pull/5969","tags":["Issue Tracking","Patch"],"source":"security-advisories@github.com"},{"url":"https://github.com/FasterXML/jackson-databind/pull/5970","tags":["Issue Tracking","Patch"],"source":"security-advisories@github.com"},{"url":"https://github.com/FasterXML/jackson-databind/security/advisories/GHSA-5hh8-q8hv-fr38","tags":["Vendor Advisory"],"source":"security-advisories@github.com"}],"sources":{"nvd":"https://nvd.nist.gov/vuln/detail/CVE-2026-54517","epss":"https://www.first.org/epss/","kev":"https://www.cisa.gov/known-exploited-vulnerabilities-catalog","exploitdb":"https://www.exploit-db.com/"},"licence":"CC BY 4.0 — link back to the CVE Explorer if you publish the results; upstream data remains subject to its own terms."}