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TI-2026-51268 Aliases CVE-2026-73059GHSA-8qcg-fhr3-3rx9

stoatchat before 0.15.0 Permission Bypass via message_fetch

Priority LOW 31CWE-863Published · Updated

Key facts

Attack vector
Network
Privileges required
Low
User interaction
None
Attack complexity
Low
Attack requirements
None
Impact type
Security bypass
Confidentiality · integrity · availability
High · None · None
Fix status
Fixed

Attack profile from CVSS 4.0 · CNA. Fix status from CNA. Impact type from CWE-863.

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.

Why it matters now

Exploitation None reported CISA SSVC · not in CISA KEV
EPSS 0.00375 31st percentileScored 2026-11-07
Fix Fixed stoatchat (stoatchat): 0.15.0

SSVC decision points

CISA ADP · SSVC 2.0.3

Exploitation
None
Automatable
No
Technical impact
Partial

The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.

Affected products

VendorProductAffected versionsFixed inStatusSource
stoatchatstoatchatbefore 0.15.00.15.0Patch availableCNA
  • stoatchat Vendorstoatchat Affected before 0.15.0 Fixed in 0.15.0 Patch available CNA

Remediation

  • Fix · CNA stoatchat (stoatchat) Fixed in 0.15.0

Fixed in the same release

Records fixed by the same vendor advisory or release, as the CNA lists them.

  • Release ·

    stoatchat 0.15.0

    3 records Highest priority Priority HIGH 2 HIGH, 1 LOW

    Other records, highest priority first

    • TI-2026-51266 stoatchat before 0.15.0 Uncapped SVG Rendering Denial of ServicePriority HIGH 77
    • TI-2026-51267 stoatchat before 0.15.0 SSRF via IPv6 unspecified address bypassPriority HIGH 70
    Show all 3 records →

Timeline

  1. 2026-10-02 Threatist record created from CVE-2026-73059
  2. 2026-10-03 Alias added: GHSA-8qcg-fhr3-3rx9

References

Advisory 1

  • TI-2026-45152 stoatchat before 0.13.5 Unauthenticated SSRF via proxy and embed endpoints CVSS 4.0CRITICAL 9.2
  • TI-2026-64832 stoatchat before 0.15.5 Local Filesystem Read via SVG CVSS 4.0HIGH 8.8
  • TI-2026-51266 stoatchat before 0.15.0 Uncapped SVG Rendering Denial of Service CVSS 4.0HIGH 8.7
  • TI-2026-45038 stoatchat < 0.14.0 SSRF via DNS-based IP Blocklist Bypass CVSS 4.0HIGH 7.7
  • TI-2026-64833 stoatchat before 0.15.5 Account Enumeration via Error Location CVSS 4.0MEDIUM 6.9
  • TI-2026-51267 stoatchat before 0.15.0 SSRF via IPv6 unspecified address bypass CVSS 4.0MEDIUM 6.9
See all 15 →

Sources

This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences