What is CVE-2026-48712?

CVE-2026-48712 is a high-severity vulnerability in Protobufjs Protobuf.js, classified under Uncontrolled Recursion. CVSS score: 7.5/10. Published 2026-06-22.

How severe is CVE-2026-48712?

High severity. CVSS v3 base score is 7.5 out of 10.

Vulnerability in Protobufjs Protobuf.js

CVE-2026-48712

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(…

CVSS v3 metric

CVSS v3 base score 7.5 (High). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H.

Affected products

Protobufjs Protobuf.js — versions < 7.6.1, >= 8.0.0, < 8.4.1

Weakness classification (CWE)

CWE-674 — Uncontrolled Recursion

References

security-advisories@github.com (x_refsource_CONFIRM)

Frequently asked questions

What is CVE-2026-48712?: CVE-2026-48712 is a high-severity vulnerability in Protobufjs Protobuf.js, classified under Uncontrolled Recursion. CVSS score: 7.5/10. Published 2026-06-22.
How severe is CVE-2026-48712?: High severity. CVSS v3 base score is 7.5 out of 10.