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TI-2026-85585 Aliases CVE-2026-123206GHSA-24j8-6f8g-7442

Missing authentication in EdgeChat lets users download attachments

Priority MEDIUM 61CWE-306Published · Updated

Key facts

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

Attack profile from CVSS 4.0 · CNA. Fix status from CNA. Impact type from CWE-306.

Summary

EdgeChat before 2.20.3 lacks authentication on the GET /files/:key route (CWE-306). Unauthenticated or banned users can download decrypted public-channel attachments. An attacker who holds an attachment object key can omit or supply an invalid token to retrieve plaintext attachments without a session or channel membership.

Written with Claude Haiku 5.5 from the sources below · 2026-11-07

Description from the CNA

EdgeChat before 2.20.3 contains a missing authentication vulnerability in the GET /files/:key route that allows unauthenticated or banned users to download decrypted public-channel attachments because canAccessFile() accepts a null user id. Attackers holding an attachment object key can omit or supply an invalid token to retrieve plaintext attachments without a session or channel membership.

Why it matters now

Exploitation Proof of concept CISA SSVC · not in CISA KEV
EPSS 0.00462 40th percentileScored 2026-11-07
Fix Fixed EdgeChat (aozorae): 2.20.3

SSVC decision points

CISA ADP · SSVC 2.0.3

Exploitation
Poc
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
aozoraeEdgeChatbefore 2.20.32.20.3Patch availableCNA
  • EdgeChat Vendoraozorae Affected before 2.20.3 Fixed in 2.20.3 Patch available CNA

Remediation

EdgeChat 2.20.3 fixes this flaw, so upgrade EdgeChat from earlier versions to 2.20.3.

Written with Claude Haiku 5.5 from the sources below · 2026-11-07

  • Fix · CNA EdgeChat (aozorae) Fixed in 2.20.3

Vendor assessments

Red Hat

Red Hat's page for this CVE →

Not affected: 1 product
  • Red Hat

Timeline

  1. 2026-11-05 Threatist record created from CVE-2026-123206
  2. 2026-11-05 CISA SSVC decision points changed
  3. 2026-11-05 Alias added: GHSA-24j8-6f8g-7442
  4. 2026-11-07 Affected versions changed · Red Hat
  5. 2026-11-07 CVSS score added · Red Hat

References

Patch 1

Other 3

Sources

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