CVE-2026-41242: protobufjs has an arbitrary code execution issue
(updated )
protobufjs could execute generated JavaScript code derived from protobuf schema metadata. When loading a crafted JSON descriptor, schema-controlled type names and type references could reach runtime code generation without sufficient validation.
References
- access.redhat.com/errata/RHSA-2026:21338
- access.redhat.com/errata/RHSA-2026:24977
- access.redhat.com/errata/RHSA-2026:26234
- access.redhat.com/errata/RHSA-2026:37275
- access.redhat.com/errata/RHSA-2026:62260
- access.redhat.com/security/cve/CVE-2026-41242
- bugzilla.redhat.com/show_bug.cgi?id=2459442
- github.com/advisories/GHSA-xq3m-2v4x-88gg
- github.com/protobufjs/protobuf.js/commit/086916b4a52c9f73ce88956edbb38fc902e54bbf
- github.com/protobufjs/protobuf.js/commit/535df444ac060243722ac5d672db205e5c531d75
- github.com/protobufjs/protobuf.js/commit/ff7b2afef8754837cc6dc64c864cd111ab477956
- github.com/protobufjs/protobuf.js/releases/tag/protobufjs-v7.5.5
- github.com/protobufjs/protobuf.js/releases/tag/protobufjs-v8.0.1
- github.com/protobufjs/protobuf.js/security/advisories/GHSA-xq3m-2v4x-88gg
- github.com/protobufjs/protobuf.js/tree/v6.11.6
- nvd.nist.gov/vuln/detail/CVE-2026-41242
- security.access.redhat.com/data/csaf/v2/vex/2026/cve-2026-41242.json
Code Behaviors & Features
Detect and mitigate CVE-2026-41242 with GitLab Dependency Scanning
Secure your software supply chain by verifying that all open source dependencies used in your projects contain no disclosed vulnerabilities. Dependency Scanning using SBOM also detects vulnerabilities from proprietary advisories that this site does not include. Learn more about Dependency Scanning using SBOM →