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Vulnerability · Published Jul 14, 2026 · Assigned by GitHub_M

CVE-2026-59888jackson-databind: @JsonIgnore on a Record property is bypassed with a PropertyNamingStrategy

Medium 6.5

In plain English

A medium-severity security flaw in jackson-databind from FasterXML. There are no confirmed reports of exploitation so far. The chance it is exploited in the next 30 days is estimated at 0.4% (higher than 37% of all known vulnerabilities). Fixed versions are available - upgrade the affected package.

Severity (CVSS 3.1)6.5Medium
Exploit odds (30 days)0.4%top 63.2% of all CVEs
Exploited in the wildNo reportsCISA SSVC: none
Attack toolingNoneno public tooling known

Official description

jackson-databind contains the general-purpose data-binding functionality and tree-model for Jackson Data Processor. From 2.15.0 until 2.18.8, 2.21.4, and 3.1.4, Java Records using a PropertyNamingStrategy can bypass @JsonIgnore because POJOPropertiesCollector._removeUnwantedIgnorals() records an ignored component under its original implicit name before _renameUsing() applies the naming strategy, allowing the renamed JSON key to be assigned to the Record constructor parameter. This issue is fixed in versions 2.18.8, 2.21.4, and 3.1.4.

Affected packages & fixed versions

EcosystemPackageFixed inAdvisory
Mavencom.fasterxml.jackson.core:jackson-databind2.21.4GHSA-3pjw-73gf-8qr5
Mavencom.fasterxml.jackson.core:jackson-databind2.18.8GHSA-3pjw-73gf-8qr5
Maventools.jackson.core:jackson-databind3.1.4GHSA-3pjw-73gf-8qr5
Ubuntu:22.04:LTSjackson-databindno fix listedUBUNTU-CVE-2026-59888
Ubuntu:24.04:LTSjackson-databindno fix listedUBUNTU-CVE-2026-59888
Ubuntu:26.04:LTSjackson-databindno fix listedUBUNTU-CVE-2026-59888
Ubuntu:26.10jackson-databindno fix listedUBUNTU-CVE-2026-59888

Affected products (as reported)

VendorProductVersions
FasterXML jackson-databind >= 2.15.0, < 2.18.8>= 2.19.0, < 2.21.4>= 3.0.0, < 3.1.4

Weakness: CWE-915 · Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:N

References