GHSA-9fxm-vc8v-hj55 - Vulnerability details

5.3/10

CVSS 3.1

GHSA-9fxm-vc8v-hj55

resolved Published 2026-06-23 Updated 2026-07-20

GitHub Advisory

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Vulnerability Data from Dependency-Track

Affected versions

5.6

5.6.4 5.6.3 5.6.2 5.6.1 5.6.0

5.5

5.5.17 5.5.16 5.5.15 5.5.14 5.5.13 5.5.12 5.5.11 5.5.10 5.5.9 5.5.8

5.4

5.4.11

Fixed in versions 5.7.0, 5.6.5, 5.5.18 and 5.4.12

Score

5.3 CVSS 3.1 GITHUB CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N

Description

## Summary `POJOPropertiesCollector._renameProperties()` allows a property with `@JsonProperty("renamed")` on the getter and `@JsonIgnore` on the setter to be renamed rather than dropped. With `MapperFeature.INFER_PROPERTY_MUTATORS` enabled (default), the private backing field is retained; during deserialization `BeanDeserializerFactory.addBeanProps()` sees `hasField()==true`, builds a `FieldProperty`, and makes the backing field writable. An attacker supplying the renamed JSON key writes the backing field directly, bypassing the `@JsonIgnore` on the setter. ## Impact POJOs combining a renamed getter with an ignored setter (a read-only-over-the-wire pattern) have that field silently set from attacker input (property tampering / mass assignment). Not a general gadget; no RCE. ## Affected / Patched (verified via `git tag --contains`) - 2.21 line: `>= 2.21.0, < 2.21.4` -> fixed in **2.21.4** (backport `c3d56dd`, #5968) - 3.x line: `>= 3.0.0, < 3.1.4` -> fixed in **3.1.4** (#5967, `e88cb17`) ## Severity / CWE Maintainer: minor. Reporter: HIGH. CWE-915. ## Credits Omkhar Arasaratnam (@omkhar) - finder.

Same vulnerability as

CVE-2026-54516 resolved according to EUVD-2026-38590

Analysis Read only

State

Justification

Recommandation

Workaround

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