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HIGHCVE-2026-44289Published Modified CNA GitHub_M

CVE-2026-44289: protobufjs: Denial of service through unbounded protobuf recursion

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.

Metrics

CVSS v3.1
7.5
Severity
HIGH
Fixed in
Affected Products
1
Affected packages
  • protobufjs / protobuf.js
    < 7.5.6 · >= 8.0.0, < 8.0.2
CVSS Vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
CVE-2026-44289: protobufjs: Denial of service through unbounded protobuf recursion | HarborGuard CVE