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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References
History
Thu, 05 Nov 2026 18:30:00 +0000
| Type | Values Removed | Values Added |
|---|---|---|
| Description | 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. | |
| Title | EdgeChat before 2.20.3 Missing Authentication for Attachment Download via GET /files/:key | |
| Weaknesses | CWE-306 | |
| References |
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| Metrics |
cvssV3_1
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Status: PUBLISHED
Assigner: VulnCheck
Published:
Updated: 2026-11-05T19:03:57.588Z
Reserved: 2026-11-05T17:58:51.927Z
Link: CVE-2026-123206
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Status : Received
Published: 2026-11-05T19:17:20.043
Modified: 2026-11-05T19:17:20.043
Link: CVE-2026-123206
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Weaknesses