CVE-2026-48611
Received Received - Intake
OAuth Account Hijacking via Improper Authentication Checks

Publication date: 2026-06-12

Last updated on: 2026-06-12

Assigner: HackerOne

Description
Improper authentication checks in the OAuth implementation allow account hijacking even when OAuth is not configured or enabled leading to unauthorized access in default installations.
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Meta Information
Published
2026-06-12
Last Modified
2026-06-12
Generated
2026-06-12
AI Q&A
2026-06-12
EPSS Evaluated
N/A
NVD
CVE-2026-48611
EUVD
EUVD-2026-36375
Affected Vendors & Products
Currently, no data is known.
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Exploitability
CWE
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KEV
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CWE ID Description
CWE-287 When an actor claims to have a given identity, the product does not prove or insufficiently proves that the claim is correct.
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Executive Summary

This vulnerability involves improper authentication checks in the OAuth implementation. It allows attackers to hijack user accounts even when OAuth is not configured or enabled, leading to unauthorized access in default installations.

Impact Analysis

The vulnerability can lead to unauthorized access to user accounts, resulting in account hijacking. This can compromise confidentiality, integrity, and availability of the affected system or data.

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