Description
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.
Affected products
Version statuses are supplied by the assigning organization. Consult the original record for detailed ranges and platform conditions.
protobufjs protobuf.js
< 7.5.6affected>= 8.0.0, < 8.0.2affected
References
- https://github.com/protobufjs/protobuf.js/security/advisories/GHSA-66ff-xgx4-vchm ↗
- 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 ↗
- https://access.redhat.com/errata/RHSA-2026:34160 ↗
- https://access.redhat.com/errata/RHSA-2026:37385 ↗
- https://access.redhat.com/errata/RHSA-2026:34374 ↗
- https://access.redhat.com/errata/RHSA-2026:26234 ↗
- https://access.redhat.com/errata/RHSA-2026:60520 ↗
- https://access.redhat.com/errata/RHSA-2026:57487 ↗
- https://access.redhat.com/errata/RHSA-2026:54555 ↗
- https://access.redhat.com/errata/RHSA-2026:37628 ↗
- https://access.redhat.com/errata/RHSA-2026:37186 ↗
- https://access.redhat.com/errata/RHSA-2026:29795 ↗
- https://access.redhat.com/errata/RHSA-2026:26090 ↗