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Vulnerabilities

Vulnerability · CVE-2026-59888

on a Record property is bypassed with a PropertyNamingStrategy in jackson-databind [CVE-2026-59888]

Published Jul 10, 2026 · catalog updated Jul 10, 2026 · on a Record property

Last checked Nov 2, 2026. A connected source was read within the last 7 days.

Check if you run it

No confirmed exploitation is on record for CVE-2026-59888. EPSS is 0.42%. Act only if a listed version of on a Record property is installed.

Gaps on this record

  • The stored product name is a package slug. The name on this page is taken from the title (on a Record property).
  • No vendor fix or required action is stored. Compare the linked advisory before you change production.
Severity
Medium6.5
Known exploitation
Not in CISA/VulnCheck KEV
EPSS
0.42%
Remediation
Version ranges on file
Affected products
maven com.fasterxml.jackson.core:jackson-databind · maven tools.jackson.core:jackson-databind

## Summary For Java Records, records a -annotated component under its original implicit name before applies the . After the rename, still holds only the pre-rename name, so is built from the stale key. The renamed JSON key passes and is assigned to the Record's constructor parameter, defeating the . ## Impact A Record using a naming strategy that relies on to keep an internal/privileged component out of deserialization can have that component set from the wire via its renamed key (e.g. a role/flag controlled by an untrusted client). ## Affected / Patched (verified via ) - 2.15-2.18 line: -> fixed in **2.18.8** (backport ) - 2.19-2.21 line: -> fixed in **2.21.4** - 3.x line: -> fixed in **3.1.4** (#5974, ) ## Severity / CWE Maintainer: minor. Reporter: Moderate. CWE-915; related CWE-345. ## Credits Omkhar Arasaratnam (@omkhar) - finder.

Are you affected?

Enter the version you run. The result uses only the ranges stored on this record.

The check returns affected, not affected, or incomplete. It does not guess a version that is missing from the record.

  • maven com.fasterxml.jackson.core:jackson-databind>= 2.15.0, < 2.18.8
  • maven com.fasterxml.jackson.core:jackson-databind>= 2.19.0, < 2.21.4
  • maven tools.jackson.core:jackson-databind>= 3.0.0, < 3.1.4

How to fix CVE-2026-59888

What to do

Three questions, each answered from this record only. Confirm the vendor advisory before you patch.

Should you patch?

No confirmed exploitation is on record for CVE-2026-59888. EPSS is 0.42%. Act only if a listed version of on a Record property is installed.

Which versions are affected?

Compare what you have installed with >= 2.15.0, < 2.18.8, >= 2.19.0, < 2.21.4, >= 3.0.0, < 3.1.4. Compare the installed version with the linked vendor advisory before you change production.

What should an analyst verify?

CWE-915: Improperly Controlled Modification of Dynamically-Determined Object Attributes. EPSS 0.42%. There is no CISA KEV listing. No Exploit-DB or Metasploit reference is linked. Use the source links for the original advisory.

Technology hubs

Jackson security

Code

The project this record applies to. Exploit listings stay in References.

Timeline

Detection, updates, and resolution for this record.

  1. Jul 10, 2026 · Maintainer security tabs

    Detected

    ## Summary For Java Records, records a -annotated component under its original implicit name before applies the . After the rename, still holds only the pre-rename name, so is built from the stale key. The renamed JSON key passes and is assigned to the Record's constructor parameter, defeating the . ## Impact A Record using a naming strategy that relies on to keep an internal/privileged component

Sources

  • Maintainer security tabsVendor advisoryGHSA-3pjw-73gf-8qr5

    ## Summary For Java Records, records a -annotated component under its original implicit name before applies the . After the rename, still holds only the pre-rename name, so is built from the stale key. The renamed JSON key passes and is assigned to the Record's constructor parameter, defeating the . ## Impact A Record using a naming strategy that relies on to keep an internal/privileged component

    github.com
  • urlscan.ioThreat intelligenceCVE-2026-59888
    urlscan.io

References

Freshness

Last verified in this catalog Nov 2, 2026. Significant claims (KEV, EPSS, CVSS, affected ranges) come from the source rows above — open the original publisher for the authoritative advisory.

  • urlscan.ioNov 2, 2026
  • Maintainer security tabsNov 2, 2026