What’s Vulnerable › Vulnerabilities

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

• Severity: medium (CVSS 6.5 v3.1)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 0.4% probability of exploitation in the next 30 days
• Public exploit or detection template: none known
• Published: 2026-07-14 · updated 2026-10-24
• Weakness: CWE-915

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 products

• FasterXML jackson-databind: from 2.15.0, < 2.18.8; from 2.19.0, < 2.21.4; from 3.0.0, < 3.1.4

References

• https://github.com/FasterXML/jackson-databind/commit/baa2cdf5ca2b2717fbb88d91955d69d8651df3e4
• https://github.com/FasterXML/jackson-databind/commit/c7c678360624da5bc7eed2152789fa522880db9d
• https://github.com/FasterXML/jackson-databind/pull/5974
• https://github.com/FasterXML/jackson-databind/security/advisories/GHSA-3pjw-73gf-8qr5

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