Improper Validation of Array Index Affecting rclone package, versions *


Severity

Recommended
0.0
medium
0
10

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Threat Intelligence

EPSS
0.31% (23rd percentile)

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  • Snyk IDSNYK-DEBIAN13-RCLONE-19257858
  • published26 Aug 2026
  • disclosed25 Aug 2026

Introduced: 25 Aug 2026

NewCVE-2026-79775  (opens in a new tab)
CWE-129  (opens in a new tab)

How to fix?

There is no fixed version for Debian:13 rclone.

NVD Description

Note: Versions mentioned in the description apply only to the upstream rclone package and not the rclone package as distributed by Debian. See How to fix? for Debian:13 relevant fixed versions and status.

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 use. An attacker who can place or modify a SquashFS image in storage exposed through an rclone :archive: remote can craft a malicious image that triggers an integer division-by-zero panic (zero block size), an out-of-bounds slice panic (out-of-range inode metadata offset), or a non-progress CPU loop (truncated metadata stream). Variants 1 and 2 terminate the rclone process and, via 'rclone serve sftp', can crash the entire SFTP server; variant 3 causes sustained CPU consumption. Parsing is lazy, so a victim or remote client must address or descend into the malicious archive object to trigger it.

CVSS Base Scores

version 3.1