GHSA-24j8-6f8g-7442MediumCVSS 3.7
EdgeChat before 2.20.3 contains a missing authentication vulnerability in the GET /files/:key...
🔗 CVE IDs covered (1)
📋 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.
🔗 References (7)
- https://nvd.nist.gov/vuln/detail/CVE-2026-123206
- https://github.com/aozorae/Edgechat/issues/58
- https://github.com/aozorae/Edgechat/commit/38cb5cf42d8014ca64624d4f4d565419b2fbeda9
- https://github.com/aozorae/Edgechat/blob/1288c66997d5e2f9eefc515cf60b2072f8d655be/worker/src/data/uploaded-files.js#L146
- https://hackmd.io/@hieund/edgechat-files-unauthenticated-public-attachment-disclosure
- https://www.vulncheck.com/advisories/edgechat-before-2.20.3-missing-authentication-for-attachment-download-via-get-files-key
- https://github.com/advisories/GHSA-24j8-6f8g-7442