Dashboard / CVE-2026-54271

CVE-2026-54271

HIGH
MEDIUM Priority: 0.02 BB Relevance: 56/100
Published: 2026-06-22 Modified: 2026-10-25 First seen: 2026-10-29 Status: active

Attack Surface

Network No Auth Conf. Impact Integ. Impact Scope Change

CVSS Vector Breakdown

AV: Network
AC: High
PR: None
UI: Required
S: Changed
C: High
I: High
A: Low

Description

protobufjs-cli is the command line add-on for protobuf.js. Prior to 1.3.2 and 2.5.0, a previous fix for unsafe name handling in pbjs static / static-module code generation was incomplete. Affected versions of protobufjs-cli could still emit unsafe JavaScript references when generating static output from crafted JSON descriptor input. The common case of parsing schemas from .proto files is not affected. This is a bypass of CVE-2026-44295. An attacker who can provide or influence pre-parsed JSON descriptors passed to pbjs static code generation may be able to cause generated JavaScript output to contain attacker-controlled code. The injected code may execute if the generated file is later executed or imported and an affected generated API path is invoked. This vulnerability is fixed in 1.3.2 and 2.5.0.

Weakness Classification (1)

Affected Software (1)

VendorProductVersion
protobufjs_project protobufjs-cli < 1.3.2

References & Advisories (1)

Bug Bounty Relevance

56 / 100
✓ Network accessible
✓ No authentication

CVSS Score

8.2 / 10.0 v3.1
CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:C/C:H/I:H/A:L

EPSS — Exploitation Probability

0.30%
Raw Score 0.003030
Percentile 23.0%
Date 2026-10-29

EPSS Trend

2026-10-29
0.00303
2026-10-28
0.00303

Intelligence Sources

nvd ref →

External Links