Bug 2477088 (CVE-2026-44292) - CVE-2026-44292 protobufjs: protobufjs: Data integrity impact due to prototype pollution
Summary: CVE-2026-44292 protobufjs: protobufjs: Data integrity impact due to prototype...
Keywords:
Status: NEW
Alias: CVE-2026-44292
Product: Security Response
Classification: Other
Component: vulnerability
Version: unspecified
Hardware: All
OS: Linux
high
high
Target Milestone: ---
Assignee: Product Security
QA Contact:
URL:
Whiteboard:
Depends On: 2496846 2496847 2496848 2496849 2496850 2496851
Blocks:
TreeView+ depends on / blocked
 
Reported: 2026-05-13 16:03 UTC by OSIDB Bzimport
Modified: 2026-07-29 19:53 UTC (History)
54 users (show)

Fixed In Version:
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System ID Private Priority Status Summary Last Updated
Red Hat Product Errata RHSA-2026:48151 0 None None None 2026-07-29 19:53:21 UTC

Description OSIDB Bzimport 2026-05-13 16:03:26 UTC 
protobufjs compiles protobuf definitions into JavaScript (JS) functions. Prior to 7.5.6 and 8.0.2, protobufjs generated message constructors copied enumerable properties from a provided properties object without filtering the __proto__ key. If an application constructed a message from an attacker-controlled plain object, an own enumerable __proto__ property could alter the prototype of that individual message instance. This vulnerability is fixed in 7.5.6 and 8.0.2.
Comment 4 errata-xmlrpc 2026-07-29 19:53:18 UTC 
This issue has been addressed in the following products:

  Cryostat 4 on RHEL 9

Via RHSA-2026:48151 https://access.redhat.com/errata/RHSA-2026:48151
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