CVE-2026-44293
protobufjs compiles protobuf definitions into JavaScript (JS) functions. Prior to 7.5.6 and 8.0.2, protobufjs generated JavaScript for toObject conversion could include an unsafe expression derived from a schema-controlled bytes field default value. A crafted descriptor with a non-string default value for a bytes field could cause attacker-controlled code to be emitted into the generated conversion function. This vulnerability is fixed in 7.5.6 and 8.0.2.
- Score
- CVSS 3.1 8.8 High
- Status
- Modified - security-advisories@github.com
- Published
- 2026-05-13
- Last modified
- 2026-09-09
- Weaknesses
- CWE-94
Affected products
- Protobuf.js (Protobufjs)
- Protobufjs (Protobufjs Project)
- Ansible Automation Platform (Redhat)
- Ansible Portal (Redhat)
- Enterprise Linux (Redhat)
- Enterprise Linux Ai (Redhat)
- Hummingbird (Redhat)
- Openshift (Redhat)
- Openshift Ai (Redhat)
- Openshift Data Foundation (Redhat)
- Openshift Pipelines (Redhat)
- Podman Desktop (Redhat)
- Rhdh (Redhat)
- Service Mesh (Redhat)
References
- https://github.com/protobufjs/protobuf.js/security/advisories/GHSA-66ff-xgx4-vchm
- https://access.redhat.com/errata/RHSA-2026:26090
- https://access.redhat.com/errata/RHSA-2026:26234
- https://access.redhat.com/errata/RHSA-2026:29795
- https://access.redhat.com/errata/RHSA-2026:34160
- https://access.redhat.com/errata/RHSA-2026:34374
- https://access.redhat.com/errata/RHSA-2026:37186
- https://access.redhat.com/errata/RHSA-2026:37385
- https://access.redhat.com/errata/RHSA-2026:37628
- https://access.redhat.com/errata/RHSA-2026:54555
- https://access.redhat.com/errata/RHSA-2026:57487
- https://access.redhat.com/errata/RHSA-2026:60520
- https://access.redhat.com/security/cve/CVE-2026-44293
- https://bugzilla.redhat.com/show_bug.cgi?id=2477104
- https://security.access.redhat.com/data/csaf/v2/vex/2026/cve-2026-44293.json
