Authentication Bypass via Semicolon in Peplink InControl 2

Publication date: 2026-06-26

Last updated on: 2026-07-02

Assigner: MITRE

Description

Peplink InControl 2 through 2.14.2 before 2026-06-03 allows use of a semicolon to bypass access-control rules for certain /rest/o/{orgId} endpoints.

CVSS Scores

EPSS Scores

Probability:
Percentile:

Meta Information

Published

2026-06-26

Last Modified

2026-07-02

Generated

2026-07-17

AI Q&A

2026-06-26

EPSS Evaluated

2026-07-15

NVD

CVE-2026-57920

EUVD

EUVD-2026-39651

Affected Vendors & Products

Vendor	Product	Version / Range
peplink	intcontrol_2	to 2.14.2 (inc)

Helpful Resources

Exploitability

CWE

KEV

CWE ID	Description
CWE-551	If a web server does not fully parse requested URLs before it examines them for authorization, it may be possible for an attacker to bypass authorization protection.

Attack-Flow Graph

Executive Summary

This vulnerability exists in Peplink InControl 2 versions through 2.14.2 before 2026-06-03. It allows an attacker to bypass access-control rules by using a semicolon in requests to certain /rest/o/{orgId} endpoints.

Impact Analysis

The vulnerability can lead to unauthorized access to organizational resources because it bypasses access-control rules. According to the CVSS score of 7.7, it is a high-severity issue with network attack vector, low attack complexity, requiring low privileges, no user interaction, and it impacts confidentiality with a high impact.

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