CVE-2026-48712
High
Description
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.
SeverityHigh
CVSS7.5
Exploit probability—
ProductProtobufjs
PublishedJun 22, 2026
First seenJun 22, 2026
Weakness typeCWE-674CWE-674
How to fix
Update
- protobufjs_project protobufjs7.6.1, 8.4.1 or later
- protobufjs7.6.1, 8.4.1 or later
Affected products
| Product | Affected versions | Fixed in |
|---|---|---|
| protobufjs_project protobufjs | v < 7.6.1, 8.0.0 ≤ v < 8.4.1 | 7.6.1, 8.4.1 |
| protobufjsnpm | v < 7.6.1, 8.0.0 ≤ v < 8.4.1 | 7.6.1, 8.4.1 |
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