CVE-2026-44289
protobufjs: Denial of service through unbounded protobuf recursion
HIGH 7.5EPSS 0.7%
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.
- Affected
- protobufjs · protobuf.js
- CVSS v3.1 CNA
- 7.5 HIGH
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H - EPSS
- 0.68% chance of exploitation in the next 30 days, 52nd percentile
- Published
- 2026-05-13
- Updated
- 2026-08-28
Proof-of-concept exploits (1)
- HORKimhab/CVE-2026-442_0★ · 2026-06-10