PT-2026-51600 · Fasterxml · Jackson-Databind

Omkhar · Published 2026-06-23 · Updated 2026-06-23 · CVE-2026-54517

Mitre

CVSS v3.1

5.3

Medium

Base vector

AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N

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.

Fix

Incorrect Authorization

Weakness Enumeration

CWE-863

Related Identifiers

CVE-2026-54517

Affected Products

Jackson-Databind

References · 6

• https://nvd.nist.gov/vuln/detail/CVE-2026-54517 · Security Note
• https://github.com/FasterXML/jackson-databind/pull/5970 · Note
• https://github.com/FasterXML/jackson-databind/commit/94c5d215b3af1505098c686405d9641f041a9962 · Note
• https://github.com/FasterXML/jackson-databind/security/advisories/GHSA-5hh8-q8hv-fr38 · Note
• https://github.com/FasterXML/jackson-databind/pull/5969 · Note
• https://github.com/FasterXML/jackson-databind/commit/5bf23edb4221f7dd2ec8e71ff6d26c61640f261d · Note