Bug 2567654 (CVE-2026-123206) - CVE-2026-123206 edgechat: EdgeChat: Information disclosure via missing authentication in file download endpoint
Summary: CVE-2026-123206 edgechat: EdgeChat: Information disclosure via missing authen...
Keywords:
Status: NEW
Alias: CVE-2026-123206
Product: Security Response
Classification: Other
Component: vulnerability
Version: unspecified
Hardware: All
OS: Linux
low
low
Target Milestone: ---
Assignee: Product Security DevOps Team
QA Contact:
URL:
Whiteboard:
Depends On:
Blocks:
TreeView+ depends on / blocked
 
Reported: 2026-11-05 22:15 UTC by OSIDB Bzimport
Modified: 2026-11-06 00:07 UTC (History)
0 users

Fixed In Version:
Clone Of:
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Description OSIDB Bzimport 2026-11-05 22:15:22 UTC 
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.
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