Medium severity · published Jun 23, 2026
CVE-2026-54517
jackson-databind: @JsonView bypass for setterless creator properties
5.3
CVSS
0.4%
EPSS
No
On KEV
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.
CVSS vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N
Attack vector
Network
Complexity
Low
Privileges
None
User interaction
None
Confidentiality
None
Integrity
Low
Availability
None
Scope
Unchanged
Exploitation
Is it being used?
Exploit prediction (EPSS)0.4% · higher than 32% of CVEs
Exploited in the wildNo evidence yet
CISA KEVNot listed
Ransomware campaign useNot known
Affected products
Which versions
JA
jackson-databind · FasterXML
>= 2.21.0, < 2.21.4; >= 3.0.0, < 3.1.4 · source: vendor, NVD
References
NVD
https://nvd.nist.gov/vuln/detail/CVE-2026-54517
CVE.org
https://www.cve.org/CVERecord?id=CVE-2026-54517
Patch
https://github.com/FasterXML/jackson-databind/commit/5bf23edb4221f7dd2ec8e71ff6d26c61640f261d
Patch
https://github.com/FasterXML/jackson-databind/commit/94c5d215b3af1505098c686405d9641f041a9962
Issue Tracking
https://github.com/FasterXML/jackson-databind/pull/5969
Issue Tracking
https://github.com/FasterXML/jackson-databind/pull/5970
Vendor Advisory
https://github.com/FasterXML/jackson-databind/security/advisories/GHSA-5hh8-q8hv-fr38
More from jackson-databind
10.0
CVE-2018-14721
FasterXML jackson-databind 2.x before 2.9.7 might allow remote attackers to conduct server-side request forgery (SSRF) attacks by leveraging failure to block the axis2-jaxws class…
9.8
CVE-2026-110879
jackson-databind: PolymorphicTypeValidator bypass via generic type arguments and array element types allows arbitrary class instantiation (incomplete fix for CVE-2026-54512)
9.8
CVE-2019-14893
A flaw was discovered in FasterXML jackson-databind in all versions before 2.9.10 and 2.10.0, where it would permit polymorphic deserialization of malicious objects using the…
9.8
CVE-2019-14892
A flaw was discovered in jackson-databind in versions before 2.9.10, 2.8.11.5 and 2.6.7.3, where it would permit polymorphic deserialization of a malicious object using…
9.8
CVE-2020-9546
FasterXML jackson-databind 2.x before 2.9.10.4 mishandles the interaction between serialization gadgets and typing, related to…