CVE-2026-106677
HighCVSS 7.1Exploitation Probability (EPSS)
Low risk5th percentile - higher than 5% of all known CVEs
Summary
The homestay-backend 0.0.1-SNAPSHOT application contains an IDOR vulnerability in ChatServiceImpl. An authenticated user can view conversations, read and send messages, and mark messages as read for arbitrary conversation IDs because the service does not verify that the caller is a conversation participant.
Risk Assessment
An authenticated user can access other users' private conversations, resulting in a confidentiality breach that may lead to data leakage and privacy violations.
Recommendation
Implement authorization checks verifying that the user is a participant of the conversation before granting access to or modifying its content. Update the application to a patched version.
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Original NVD description (English source)
Homestay3 homestay-backend 0.0.1-SNAPSHOT contains an IDOR in ChatServiceImpl. An authenticated user can view conversations, read messages, send messages, and mark messages as read for arbitrary conversation ids because the service does not verify that the caller is a conversation participant.
Vulnerability data from NVD (NIST) · CISA KEV · EPSS

