CVE-2026-73059

stoatchat before 0.15.0 contains a permission bypass vulnerability in the message_fetch route that checks only ViewChannel permission instead of requiring ReadMessageHistory. Attackers with ViewChannel access but ReadMessageHistory denied can retrieve individual message content by ID, bypassing the intended history restriction enforced by bulk read routes.

CVSS v3 6.5 MEDIUM

6.5^/10

CVSS v3 : MEDIUM

Vector :

Exploitability : 2.8 / Impact : 3.6

Attack Vector NETWORK

Attack Complexity LOW

Privileges Required LOW

User Interaction NONE

Confidentiality Impact HIGH

Integrity Impact NONE

Availability Impact NONE

Scope UNCHANGED

References

Link	Resource
https://github.com/stoatchat/stoatchat/security/advisories/GHSA-8qp4-h9xf-2vqr
https://www.vulncheck.com/advisories/stoatchat-before-permission-bypass-via-message-fetch

Configurations

No configuration.

History

No history.

Information

Published : 2026-08-16 14:16

Updated : 2026-08-26 16:57

NVD link : CVE-2026-73059

Mitre link : CVE-2026-73059

CVE.ORG link : CVE-2026-73059

JSON object : View

Products Affected

No product.

CWE

CWE-863

Incorrect Authorization

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