CVE-2026-48712
protobufjs: Denial of service through unbounded Any expansion during JSON conversion
HIGH 7.5EPSS 0.5%
protobufjs compiles protobuf definitions into JavaScript (JS) functions. Prior to 7.6.1 and 8.4.1, protobufjs could recurse without a depth limit while converting decoded messages to plain objects or JSON. This affected generated toObject() conversion and the custom google.protobuf.Any JSON conversion path. A crafted protobuf binary payload containing deeply nested Any values could cause the JavaScript call stack to be exhausted during conversion to JSON. This vulnerability is fixed in 7.6.1 and 8.4.1.
- Affected
- protobufjs · protobuf.js
- CVSS v3.1 GITHUB
- 7.5 HIGH
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H - EPSS
- 0.46% chance of exploitation in the next 30 days, 39th percentile
- Published
- 2026-06-22
- Updated
- 2026-06-23
Proof-of-concept exploits (1)
- HORKimhab/CVE-2026-481722★ · 2026-05-24