CVE-2026-59888Medium· 6.5▾ SunlitA flaw was found in jackson-databind. When Java Records use a PropertyNamingStrategy, an attacker can bypass the @JsonIgnore annotation during deserialization. This allows a renamed JSON key to be assigned to a Record constructor parameter…
▾ Sunlit zone — Low / medium · no exploitation signal
impact 35.8 · likelihood 0.1 · exploitation 0
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Exploit-prediction probability, daily snapshots since Jul 21.
Disclosure to exploitation, from the record and what we observed since indexing it.
Disclosed via CSAF
0.2%
0.2% → 0.3%
Last analysed / modified upstream
A flaw was found in jackson-databind. When Java Records use a PropertyNamingStrategy, an attacker can bypass the @JsonIgnore annotation during deserialization. This allows a renamed JSON key to be assigned to a Record constructor parameter, even if it was intended to be ignored. Consequently, an untrusted client could set internal or privileged components from external input, potentially leading to unauthorized modification or disclosure of sensitive data.
com.fasterxml.jackson.core/jackson-databind: tools.jackson.core/jackson-databind: jackson-databind: @JsonIgnore bypass in Java Records — rated Moderate by Red Hat. Released 2026-07-14, updated 2026-09-21.
Affected:
Fixed:
No fix planned:
Not affected:
For more information visit https://access.redhat.com/errata/RHSA-2026:68699 https://access.redhat.com/errata/RHSA-2026:68699 Before applying the update, back up your existing installation, including all applications, configuration files, databases and database settings.
The References section of this erratum contains a download link (you must log in to download the update). https://access.redhat.com/errata/RHSA-2026:66545 Before applying this update, make sure all previously released errata relevant to your system have been applied.
For details on how to apply this update, refer to:
https://access.redhat.com/articles/11258 https://access.redhat.com/errata/RHSA-2026:54440
Affected packages:
com.fasterxml.jackson.core:jackson-databind >= 2.15.0, < 2.18.8com.fasterxml.jackson.core:jackson-databind >= 2.19.0, < 2.21.4tools.jackson.core:jackson-databind >= 3.0.0, < 3.1.4Patched in:
com.fasterxml.jackson.core:jackson-databind 2.18.8com.fasterxml.jackson.core:jackson-databind 2.21.4tools.jackson.core:jackson-databind 3.1.4Connected by shared product, vendor, weakness, or advisory.
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