Amazon Linux 2 : rclone (ALAS-2026-3947)

The version of rclone installed on the remote host is prior to 1.55.1-1. It is, therefore, affected by a vulnerability as referenced in the ALAS2-2026-3947 advisory. The source-address critical option in the Permissions returned by an authentication callback was only enforced for the...

Important: rclone

Issue Overview: On Unix systems, opening a file in an os.Root improperly follows symlinks to locations outside of the Root when the final path component of the a path is a symbolic link and the path ends in /. For example, 'root.Open"symlink/"' will open "symlink" even when "symlink" is a symboli...

OPENSUSE-SU-2026:21999-1 Security update for rclone

This update for rclone fixes the following issues: Changes in rclone: - Update to version 1.75.1: boo1279548 - Security - archive - Fix zip slip path traversal in untrusted zip files GHSA-66hp-wgxq-6f5q CVE-PENDING Nick Craig-Wood - Hide any archive entry which escapes the directory being listed...

Important: rclone

Issue Overview: The source-address critical option in the Permissions returned by an authentication callback was only enforced for the PublicKeyCallback and VerifiedPublicKeyCallback paths, extending the fix for CVE-2026-46595. Permissions returned by the PasswordCallback,...

passwordcheck

rclone 設定ファイル用 passwordcheck https://github.com/rclone/rclone/issues/4783 で、rclone config によって生成されたパスワードが安全でない可能性があるというセキュリティ問題が発見されました。 このプログラムは、お使いの rclone 設定ファイルにこれらのパスワードが含まれていないかチェックします。 インストール お使いの OS とアーキテクチャに適した zip ファイルをここからダウンロードしてください: https://github.com/rclone/passwordcheck/releases z...

BIT-RCLONE-2026-79783 rclone before 1.74.4 Privilege Escalation via setuid Metadata

rclone before 1.74.4 fails to mask special permission bits when applying source-supplied mode metadata in the local backend, allowing attackers to set setuid/setgid bits on attacker-controlled files. When copying with metadata preservation from an untrusted remote, attackers can plant a setuid...

BIT-RCLONE-2026-79782 rclone before 1.74.4 Security Token Disclosure via HTTPS to HTTP Redirect

rclone before 1.74.4 fails to strip the X-Amz-Security-Token header when an S3 redirect changes scheme from HTTPS to HTTP on the same host. Attackers can intercept plaintext HTTP traffic to capture AWS STS session tokens sent in request headers...

BIT-RCLONE-2026-79781 rclone serve s3 Path Traversal via dot-dot object keys

rclone serve s3 before 1.74.4 contains a path traversal vulnerability that allows attackers to read and overwrite root-level files by using dot-dot segments in S3 object keys. Attackers can send requests with object keys like ../root-secret.txt to escape the bucket namespace and access files in t...

BIT-RCLONE-2026-79780 rclone before v1.75.0 Credential Exposure via S3 Redirect

rclone before v1.75.0 fails to sanitize IBM IAM bearer tokens and SSE-C encryption keys during S3 redirect callbacks, allowing credentials to be preserved across scheme or host changes. Attackers observing network traffic from a trusted endpoint can capture reusable IBM IAM tokens on same-host...

BIT-RCLONE-2026-79779 rclone before v1.75.0 WebDAV Credential Exposure via HTTPS-to-HTTP Redirect

rclone versions before v1.75.0 fail to reject transport downgrades in redirect handling, allowing Basic authorization and Cookie headers to be replayed over plaintext HTTP after same-host HTTPS-to-HTTP redirects. An on-path attacker observing the plaintext hop can capture and reuse credentials to...

BIT-RCLONE-2026-79778 rclone before v1.75.0 Denial of Service via TUS nil-response panic

rclone before v1.75.0 contains a denial of service vulnerability in the WebDAV TUS creation handler that dereferences a nil response before checking for transport errors. A malicious or compromised configured endpoint can reset connections during TUS uploads to trigger a panic that terminates...

BIT-RCLONE-2026-79777 rclone before v1.75.0 Information Disclosure via RC API

rclone before v1.75.0 includes full Go stack traces in RC API error responses when panics occur. Attackers can trigger panics to leak internal file paths, module versions, goroutine states, and memory addresses...

BIT-RCLONE-2026-79776 rclone before 1.75.0 Authentication Bypass via pprof

rclone before 1.75.0 mounts the pprof debug handler as its own router route, bypassing the fail-closed authentication rule in the main handler. Attackers can access the /debug/pprof/cmdline endpoint unauthenticated to retrieve the full process argv including backend credentials...

BIT-RCLONE-2026-79775 rclone Archive Backend SquashFS Parser Denial of Service

rclone versions = v1.72.0 and = v1.74.4 fixed in v1.75.0 contain multiple denial-of-service vulnerabilities in the archive backend's SquashFS parser, which relies on the github.com/diskfs/go-diskfs dependency. The parser fails to validate attacker-controlled superblock and metadata values before...

PT-2026-99021

rclone before 1.74.4 fails to strip the X-Amz-Security-Token header when an S3 redirect changes scheme from HTTPS to HTTP on the same host. Attackers can intercept plaintext HTTP traffic to capture AWS STS session tokens sent in request headers...

PT-2026-99014

rclone versions = v1.72.0 and = v1.74.4 fixed in v1.75.0 contain multiple denial-of-service vulnerabilities in the archive backend's SquashFS parser, which relies on the github.com/diskfs/go-diskfs dependency. The parser fails to validate attacker-controlled superblock and metadata values before...

PT-2026-99019

rclone before v1.75.0 fails to sanitize IBM IAM bearer tokens and SSE-C encryption keys during S3 redirect callbacks, allowing credentials to be preserved across scheme or host changes. Attackers observing network traffic from a trusted endpoint can capture reusable IBM IAM tokens on same-host...

PT-2026-99018

rclone versions before v1.75.0 fail to reject transport downgrades in redirect handling, allowing Basic authorization and Cookie headers to be replayed over plaintext HTTP after same-host HTTPS-to-HTTP redirects. An on-path attacker observing the plaintext hop can capture and reuse credentials to...

PT-2026-99016

rclone before v1.75.0 includes full Go stack traces in RC API error responses when panics occur. Attackers can trigger panics to leak internal file paths, module versions, goroutine states, and memory addresses...

PT-2026-99020

rclone serve s3 before 1.74.4 contains a path traversal vulnerability that allows attackers to read and overwrite root-level files by using dot-dot segments in S3 object keys. Attackers can send requests with object keys like ../root-secret.txt to escape the bucket namespace and access files in t...