High [CVE-2026-84647] Unintended configuration object instantiation via form data binding
This high-severity Red Hat Linux advisory covers CVE-2026-84647 affecting OpenShift Developer Tools and Services.
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Summary
In Stapler 2107.v8dfcb_e8ed317 and earlier, except 2088.2093.vd7c3e58008a_6, included in Jenkins 2.579 and earlier, LTS 2.568.2 and earlier, Stapler does not restrict the types of objects that can be instantiated via form data binding to those compatible with the expected field type, allowing attackers with Overall/Read permission to instantiate types related to configuration for which that field type was not intended.
This could lead to unauthorized manipulation of system configurations. Red Hat severity: Important — CVSS 8.5 (CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:L/I:H/A:N).
Weakness: CWE-915. Affected Red Hat products: OpenShift Developer Tools and Services.
Red Hat does not currently list a fixing RHSA for this CVE.
- 2.579
- 2.568.2
Official advisory · high-confidence parse· fetched 1 hour ago·verify at source
Fixed versions
No fixed release is recorded yet. That does not prove no patch exists — confirm against the vendor advisory.
Official advisory · high-confidence parse· fetched 1 hour ago·verify at source
Mitigation
The source record does not include mitigation steps. That is not a statement that no fix exists — read the vendor advisory below for the authoritative guidance.
Official advisory · high-confidence parse· fetched 1 hour ago·verify at source
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