Low severity3.7NVD Advisory· Published Nov 5, 2026
CVE-2026-123206
CVE-2026-123206
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.
Affected products
1Patches
Vulnerability mechanics
References
5- github.com/aozorae/Edgechat/blob/1288c66997d5e2f9eefc515cf60b2072f8d655be/worker/src/data/uploaded-files.jsnvd
- github.com/aozorae/Edgechat/commit/38cb5cf42d8014ca64624d4f4d565419b2fbeda9nvd
- github.com/aozorae/Edgechat/issues/58nvd
- hackmd.io/@hieund/edgechat-files-unauthenticated-public-attachment-disclosurenvd
- www.vulncheck.com/advisories/edgechat-before-2.20.3-missing-authentication-for-attachment-download-via-get-files-keynvd
News mentions
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