CVE-2026-48611
Deferred Deferred - Pending Action

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.

CVSS Scores

EPSS Scores

Probability:
Percentile:

Meta Information

Published
2026-06-12
Last Modified
2026-06-12
Generated
2026-07-02
AI Q&A
2026-06-12
EPSS Evaluated
2026-07-01
NVD
CVE-2026-48611
EUVD
EUVD-2026-36375

Affected Vendors & Products

Currently, no data is known.

Helpful Resources

Exploitability

CWE
CWE Icon
KEV
KEV Icon
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.

Attack-Flow Graph

AI Quick Actions

Instant insights powered by AI
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.

Chat Assistant

Ask questions about this CVE
Hi! I’m here to help you understand CVE-2026-48611. Ask me anything about the vulnerability, its impact, or mitigation strategies.
0/70

EPSS Chart