🛡️ CVE-2026-54515 on Ubuntu — jackson-databind

⚪ Unknown ✅ No Known Exploit OSV

N/A

CVSS Score

0 Low4 Medium7 High9 Critical10

Description

jackson-databind contains the general-purpose data-binding functionality and tree-model for Jackson Data Processor. From 2.8.0 until 2.18.9, 2.21.5, and 3.1.4, in BeanDeserializerBase.createContextual(), per-property @JsonIgnoreProperties exclusions are applied by _handleByNameInclusion(), producing a contextual deserializer whose BeanPropertyMap has the ignored properties removed. The subsequent per-property case-insensitivity block (triggered by @JsonFormat(ACCEPT_CASE_INSENSITIVE_PROPERTIES)) rebuilds from this._beanProperties (the original, unfiltered map) instead of contextual._beanProperties, then overwrites the filtered map — restoring every property _handleByNameInclusion had just removed. The ignored property becomes writable again. This vulnerability is fixed in 2.18.9, 2.21.5, and 3.1.4.

Distribution advisory

This page covers CVE-2026-54515 as tracked by Ubuntu, for the package jackson-databind. No fixed version has been recorded for this distribution yet.

How this vulnerability can be exploited

This issue can be reached over the network, attack complexity is low, an attacker needs no privileges on the target. No user interaction is required. The scope is unchanged, so the impact stays within the vulnerable component. Rated impact: confidentiality none, integrity low, availability none.

Weakness class

UBUNTU-CVE-2026-54515 is classified as CWE-915: Improperly Controlled Modification of Object Attributes. A request can set object fields that were never meant to be writable from outside.

Affected software

UBUNTU-CVE-2026-54515 is recorded against 1 package.

jackson-databind

Timeline and source

Published on 23 June 2026 and last revised on 25 June 2026. No public exploit is currently recorded for this entry. Record sourced from OSV.

References

ubuntu.com (Report)
www.cve.org (Report)
github.com (Report)
github.com (Report)
github.com (Report)
github.com (Report)
github.com (Report)
github.com (Report)

Details

Severity Unknown

CVSS Score N/A

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

CWE N/A

Public Exploit ✅ No

Source OSV

Published 2026-06-23

Updated 2026-08-11

Modified 2026-06-25

Fix URL N/A

Affected Packages

Software	From version	Fixed in
jackson-databind	—	—

References

REPORT https://ubuntu.com/security/CVE-2026-54515

REPORT https://www.cve.org/CVERecord?id=CVE-2026-54515

REPORT https://github.com/FasterXML/jackson-databind/security/advisories/GHSA-5jmj-h7xm-6q6v

REPORT https://github.com/FasterXML/jackson-databind/issues/5962

REPORT https://github.com/FasterXML/jackson-databind/pull/5964

REPORT https://github.com/FasterXML/jackson-databind/commit/0e1b0b211f7a53baa62ba2f4c9bd006c7bf4d5fa

REPORT https://github.com/FasterXML/jackson-databind/issues/5964

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