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Github Security Blog
Github Security Blog
•added 2026/09/10 10:47 p.m.•25 views

rclone: RC per-server auth-proxy bypass

Summary serve/start accepts protocol options in a per-server proxyOpt object. The FTP and S3 RC adapters parse that object and pass it to their server constructors, but the constructors decide whether proxy authentication is enabled by checking the process-global proxy.Opt.AuthProxy instead of th...

9.1CVSS6.2AI score0.00492EPSS
SaveExploits0References5Affected Software1
osv_ghsa
osv_ghsa
•added 2026/09/10 10:46 p.m.•16 views

GHSA-C476-6W5Q-JW77 rclone: FTP cross-session auth-proxy backend confusion

Summary The FTP auth-proxy driver stores one obscured password per username in a server-wide map. It does not bind the credential or returned VFS to the authenticated FTP session. If two accepted credentials use the same username but resolve to different proxy backends, the later login overwrites...

7.3CVSS5.7AI score0.00234EPSS
SaveExploits0References5
Github Security Blog
Github Security Blog
•added 2026/09/10 10:46 p.m.•25 views

rclone: FTP cross-session auth-proxy backend confusion

Summary The FTP auth-proxy driver stores one obscured password per username in a server-wide map. It does not bind the credential or returned VFS to the authenticated FTP session. If two accepted credentials use the same username but resolve to different proxy backends, the later login overwrites...

7.3CVSS5.7AI score0.00234EPSS
SaveExploits0References5Affected Software1
NVD
NVD
•added 2026/09/10 4:18 p.m.•23 views

CVE-2026-88017

rclone is a command-line program to sync files and directories to and from different cloud storage providers. From 1.64.0 until 1.75.1, the FTP auth-proxy driver in cmd/serve/ftp/ftp.go stores one obscured password per username in the server-wide userPass mapstringstring instead of binding the...

7.3CVSS0.00234EPSS
SaveExploits0References3
NVD
NVD
•added 2026/09/10 4:18 p.m.•21 views

CVE-2026-88018

rclone is a command-line program to sync files and directories to and from different cloud storage providers. Prior to 1.75.1, rclone serve s3 configured with --auth-proxy but without --auth-key allows authPairMiddleware to register any client-chosen accessKeyID with an empty ws.s3Secret. gofakes...

9.8CVSS0.0051EPSS
SaveExploits0References3
osv_debian
osv_debian
•added 2026/09/10 4:18 p.m.•19 views

DEBIAN-CVE-2026-88017

rclone is a command-line program to sync files and directories to and from different cloud storage providers. From 1.64.0 until 1.75.1, the FTP auth-proxy driver in cmd/serve/ftp/ftp.go stores one obscured password per username in the server-wide userPass mapstringstring instead of binding the...

7.3CVSS6AI score0.00234EPSS
SaveExploits0References1
osv_cve
osv_cve
•added 2026/09/10 4:08 p.m.•18 views

CVE-2026-88044 rclone: RC per-server auth-proxy bypass

rclone is a command-line program to sync files and directories to and from different cloud storage providers. From 1.70.0 until 1.75.1, the serve/start RC interface accepts per-server proxyOpt.AuthProxy settings, and the FTP and S3 constructors in cmd/serve/ftp/ftp.go and cmd/serve/s3/server.go...

9.1CVSS6AI score0.00492EPSS
SaveExploits0References5
Cvelist
Cvelist
•added 2026/09/10 4:08 p.m.•72 views

CVE-2026-88044 rclone: RC per-server auth-proxy bypass

rclone is a command-line program to sync files and directories to and from different cloud storage providers. From 1.70.0 until 1.75.1, the serve/start RC interface accepts per-server proxyOpt.AuthProxy settings, and the FTP and S3 constructors in cmd/serve/ftp/ftp.go and cmd/serve/s3/server.go...

9.1CVSS0.00492EPSS
SaveExploits0References3
CVE
CVE
•added 2026/09/10 4:08 p.m.•55 views

CVE-2026-88044

rclone versions 1.70.0 through 1.75.1 are affected by an authentication proxy bypass in the serve/start RC interface. The FTP and S3 constructors in cmd/serve/ftp/ftp.go and cmd/serve/s3/server.go incorrectly check the process-global proxy.Opt.AuthProxy value instead of the per-server request-loc...

9.1CVSS6AI score0.00492EPSS
SaveExploits0References3
Mend
Mend
•added 2026/09/10 4:03 p.m.•10 views

CVE-2026-88018

rclone is a command-line program to sync files and directories to and from different cloud storage providers. Prior to 1.75.1, rclone serve s3 configured with --auth-proxy but without --auth-key allows authPairMiddleware to register any client-chosen accessKeyID with an empty ws.s3Secret. gofakes...

9.8CVSS6.2AI score0.0051EPSS
SaveExploits0References6
EUVD
EUVD
•added 2026/09/10 4:03 p.m.•23 views

EUVD-2026-75585

rclone is a command-line program to sync files and directories to and from different cloud storage providers. Prior to 1.75.1, rclone serve s3 configured with --auth-proxy but without --auth-key allows authPairMiddleware to register any client-chosen accessKeyID with an empty ws.s3Secret. gofakes...

9.8CVSS6.2AI score0.0051EPSS
SaveExploits0References3
osv_cve
osv_cve
•added 2026/09/10 4:03 p.m.•36 views

CVE-2026-88018 rclone serve s3: --auth-proxy without --auth-key authenticates nobody - full SigV4 signature bypass

rclone is a command-line program to sync files and directories to and from different cloud storage providers. Prior to 1.75.1, rclone serve s3 configured with --auth-proxy but without --auth-key allows authPairMiddleware to register any client-chosen accessKeyID with an empty ws.s3Secret. gofakes...

9.8CVSS6.2AI score0.0051EPSS
SaveExploits0References5
Vulnrichment
Vulnrichment
•added 2026/09/10 4:03 p.m.•20 views

CVE-2026-88018 rclone serve s3: --auth-proxy without --auth-key authenticates nobody - full SigV4 signature bypass

rclone is a command-line program to sync files and directories to and from different cloud storage providers. Prior to 1.75.1, rclone serve s3 configured with --auth-proxy but without --auth-key allows authPairMiddleware to register any client-chosen accessKeyID with an empty ws.s3Secret. gofakes...

9.8CVSS6.2AI score0.0051EPSS
SaveExploits0References3
CVE
CVE
•added 2026/09/10 4:03 p.m.•86 views

CVE-2026-88018

rclone (a command-line tool for syncing files to cloud storage) contains a SigV4 signature bypass in its serve s3 mode. When configured with --auth-proxy but without --auth-key, the authPairMiddleware registers any client-chosen accessKeyID with an empty secret. The embedded gofakes3 component th...

9.8CVSS6.2AI score0.0051EPSS
SaveExploits0References3Affected Software1
Cvelist
Cvelist
•added 2026/09/10 4:03 p.m.•67 views

CVE-2026-88018 rclone serve s3: --auth-proxy without --auth-key authenticates nobody - full SigV4 signature bypass

rclone is a command-line program to sync files and directories to and from different cloud storage providers. Prior to 1.75.1, rclone serve s3 configured with --auth-proxy but without --auth-key allows authPairMiddleware to register any client-chosen accessKeyID with an empty ws.s3Secret. gofakes...

9.8CVSS0.0051EPSS
SaveExploits0References3
AlpineLinux
AlpineLinux
•added 2026/09/10 4:03 p.m.•15 views

CVE-2026-88018

rclone is a command-line program to sync files and directories to and from different cloud storage providers. Prior to 1.75.1, rclone serve s3 configured with --auth-proxy but without --auth-key allows authPairMiddleware to register any client-chosen accessKeyID with an empty ws.s3Secret. gofakes...

9.8CVSS6.2AI score0.0051EPSS
SaveExploits0References3
EUVD
EUVD
•added 2026/09/10 3:55 p.m.•25 views

EUVD-2026-75577

rclone is a command-line program to sync files and directories to and from different cloud storage providers. From 1.64.0 until 1.75.1, the FTP auth-proxy driver in cmd/serve/ftp/ftp.go stores one obscured password per username in the server-wide userPass mapstringstring instead of binding the...

7.3CVSS6AI score0.00234EPSS
SaveExploits0References3
osv_cve
osv_cve
•added 2026/09/10 3:55 p.m.•38 views

CVE-2026-88017 rclone: FTP cross-session auth-proxy backend confusion

rclone is a command-line program to sync files and directories to and from different cloud storage providers. From 1.64.0 until 1.75.1, the FTP auth-proxy driver in cmd/serve/ftp/ftp.go stores one obscured password per username in the server-wide userPass mapstringstring instead of binding the...

7.3CVSS6AI score0.00234EPSS
SaveExploits0References5
Mend
Mend
•added 2026/09/10 3:55 p.m.•6 views

CVE-2026-88017

rclone is a command-line program to sync files and directories to and from different cloud storage providers. From 1.64.0 until 1.75.1, the FTP auth-proxy driver in cmd/serve/ftp/ftp.go stores one obscured password per username in the server-wide userPass mapstringstring instead of binding the...

8.5CVSS6AI score0.00234EPSS
SaveExploits0References6
Vulnrichment
Vulnrichment
•added 2026/09/10 3:55 p.m.•16 views

CVE-2026-88017 rclone: FTP cross-session auth-proxy backend confusion

rclone is a command-line program to sync files and directories to and from different cloud storage providers. From 1.64.0 until 1.75.1, the FTP auth-proxy driver in cmd/serve/ftp/ftp.go stores one obscured password per username in the server-wide userPass mapstringstring instead of binding the...

7.3CVSS6AI score0.00234EPSS
SaveExploits0References3
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