CVE-2026-73059 (GCVE-0-2026-73059)

Vulnerability from cvelistv5 – Published: 2026-08-16 13:14 – Updated: 2026-08-17 16:05
VLAI
Title
stoatchat before 0.15.0 Permission Bypass via message_fetch
Summary
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.
Severity
7.1 (High)
CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:H/VI:N/VA:N/SC:N/SI:N/SA:N
6.5 (Medium)
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N
SSVC
Exploitation: none Automatable: no Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-08-17 15:45 UTC
CWE
  • CWE-863 - Incorrect Authorization
Assigner
VulnCheck CNA under the mitre root
CNA scorecard B 84/100 over 6903 records in the last 180 days details
References
Impacted products
Vendor Product Version CPE status
stoatchat stoatchat Affected: 0 , < 0.15.0 (semver)
Unaffected: 0.15.0 (semver)
guessed Create a notification for this product.
Date Public
2026-08-02 00:00
Credits
arpitjain099
Show details on NVD website
To clipboard 

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