Bug 2495356 - CVE-2026-54518 google-gson: jackson-databind: Information disclosure and data manipulation via view-based access control bypass [fedora-all]
Summary: CVE-2026-54518 google-gson: jackson-databind: Information disclosure and data...
Keywords:
Status: NEW
Alias: None
Product: Fedora
Classification: Fedora
Component: google-gson
Version: 45
Hardware: Unspecified
OS: Unspecified
medium
medium
Target Milestone: ---
Assignee: Mat Booth
QA Contact: Fedora Extras Quality Assurance
URL:
Whiteboard: {"flaws": ["6882c43b-5c82-46aa-9021-3...
Depends On:
Blocks: CVE-2026-54518
TreeView+ depends on / blocked
 
Reported: 2026-06-30 21:25 UTC by Jon Moroney
Modified: 2026-09-23 03:19 UTC (History)
6 users (show)

Fixed In Version:
Clone Of:
Environment:
Last Closed: 2026-09-07 06:00:48 UTC
Type: ---
Embargoed:


Attachments (Terms of Use)

Description Jon Moroney 2026-06-30 21:25:55 UTC
Disclaimer: Community trackers are created by Red Hat Product Security team on a best effort basis. Package maintainers are required to ascertain if the flaw indeed affects their package, before starting the update process.

jackson-databind contains the general-purpose data-binding functionality and tree-model for Jackson Data Processor. From 2.21.0 until 2.21.4 and 3.1.4, UnwrappedPropertyHandler.processUnwrappedCreatorProperties() replays buffered JSON into creator parameters but never consults prop.visibleInView(activeView). The normal property-based creator path gates creator properties on the active view, but this unwrapped-creator replay path bypasses that check, so a constructor parameter annotated with both @JsonView(AdminView.class) and @JsonUnwrapped is populated from attacker JSON even when a more restrictive view is active. This vulnerability is fixed in 2.21.4 and 3.1.4.

Comment 1 Aoife Moloney 2026-08-17 15:10:23 UTC
This bug appears to have been reported against 'rawhide' during the Fedora Linux 45 development cycle.
Changing version to 45.


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