CVE-2026-44289
protobufjs: Denial of service through unbounded protobuf recursion
- State
- Published
- Severity
- 7.5 High
- Published
- May 13, 2026
- Updated
- Aug 28, 2026
- Reserved
- May 5, 2026
Description
protobufjs compiles protobuf definitions into JavaScript (JS) functions. Prior to 7.5.6 and 8.0.2, protobufjs could recurse without a depth limit while decoding nested protobuf data. This affected both skipping unknown group fields and generated decoding of nested message fields. A crafted protobuf binary payload could cause the JavaScript call stack to be exhausted during decoding. This vulnerability is fixed in 7.5.6 and 8.0.2.
Scores
| CVSS | Score | Vector | Source |
|---|---|---|---|
| 3.1 | 7.5 High | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H | GitHub_M |
| 3.1 | 7.5 High | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H | redhat-SADP |
Weaknesses
Affected Products
| Product | Versions |
|---|---|
protobuf.jsprotobufjs |
|
References
- https://github.com/protobufjs/protobuf.js/security/advisories/GHSA-685m-2w69-288q
- https://access.redhat.com/security/cve/CVE-2026-44289vdb-entry
- RHBZ#2477130issue-tracking
- https://security.access.redhat.com/data/csaf/v2/vex/2026/cve-2026-44289.json
- https://access.redhat.com/errata/RHSA-2026:42815vendor-advisory
- https://access.redhat.com/errata/RHSA-2026:60520vendor-advisory
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