{"id":"GO-2026-6462","summary":"rclone serve s3: --auth-proxy without --auth-key authenticates nobody - full SigV4 signature bypass in github.com/rclone/rclone","details":"rclone serve s3: --auth-proxy without --auth-key authenticates nobody - full SigV4 signature bypass in github.com/rclone/rclone","aliases":["BIT-rclone-2026-88018","CVE-2026-88018","GHSA-xwwr-4h3p-r22c"],"modified":"2026-09-17T17:41:03.623612613Z","published":"2026-09-16T16:56:29Z","database_specific":{"url":"https://pkg.go.dev/vuln/GO-2026-6462","review_status":"UNREVIEWED"},"references":[{"type":"ADVISORY","url":"https://github.com/rclone/rclone/security/advisories/GHSA-xwwr-4h3p-r22c"},{"type":"ADVISORY","url":"https://nvd.nist.gov/vuln/detail/CVE-2026-88018"},{"type":"FIX","url":"https://github.com/rclone/rclone/commit/90595f34f27f569be6b27c57fe5ab65057d323bd"},{"type":"WEB","url":"https://github.com/rclone/rclone/releases/tag/v1.75.1"}],"affected":[{"package":{"name":"github.com/rclone/rclone","ecosystem":"Go","purl":"pkg:golang/github.com/rclone/rclone"},"ranges":[{"type":"SEMVER","events":[{"introduced":"0"},{"fixed":"1.75.1"}]}],"ecosystem_specific":{"imports":[{"symbols":["Server.Bind","Server.Serve","Server.Shutdown","Server.auth","authPairMiddleware","getAuthSecret","logger.Print","newServer","parseAccessKeyID","proxyAuthMiddleware","readerWithCloser.Close","s3Backend.AbortMultipartUpload","s3Backend.BucketExists","s3Backend.CompleteMultipartUpload","s3Backend.CopyObject","s3Backend.CreateBucket","s3Backend.CreateMultipartUpload","s3Backend.DeleteBucket","s3Backend.DeleteMulti","s3Backend.DeleteObject","s3Backend.GetObject","s3Backend.HeadObject","s3Backend.ListBucket","s3Backend.ListBuckets","s3Backend.PutObject","s3Backend.TouchObject","s3Backend.UploadPart","stringToMd5Hash"],"path":"github.com/rclone/rclone/cmd/serve/s3"},{"symbols":["Proxy.Call","Proxy.call"],"path":"github.com/rclone/rclone/cmd/serve/proxy"}]},"database_specific":{"source":"https://vuln.go.dev/ID/GO-2026-6462.json"}}],"schema_version":"1.9.0"}