---
title: "CVE-2026-61645: Docat - Unrestricted File Upload"
description: "Docat contains an unrestricted file upload vulnerability caused by lack of validation on uploaded file path or type in the Upload API, letting attackers overwrite sensitive files or upload malicious content, exploit requires no special privileges."
url: https://panop.io/threat-heartbeat/CVE-2026-61645/
---

# CVE-2026-61645 Docat - Unrestricted File Upload

Docat contains an unrestricted file upload vulnerability caused by lack of validation on uploaded file path or type in the Upload API, letting attackers overwrite sensitive files or upload malicious content, exploit requires no special privileges.

CVSS base score 9.1 /10

Critical

CISA KEV

Not listed

Public exploit

None known

Authentication

Required

EPSS

0.41% chance of exploitation in 30 days

[View the NVD record ↗](https://nvd.nist.gov/vuln/detail/CVE-2026-61645)

## Details

Type

Unrestricted File Upload

Impact

Remote Code Execution, Stored XSS, File System Write

CVSS vector

CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:L/I:H/A:L

Published

29 October 2026

Updated

31 October 2026

Weakness

[CWE-434](https://cwe.mitre.org/data/definitions/434.html)

## Vendor fix

Update to version 1.6.0 or later; further mitigations for file type restrictions and malicious content handling are recommended.

Patching closes this CVE. It does not tell you which of your systems run the affected version, or what else is exposed alongside them.

## References

- [https://nvd.nist.gov/vuln/detail/CVE-2026-61645](https://nvd.nist.gov/vuln/detail/CVE-2026-61645)
- [https://github.com/docat-org/docat/releases/tag/1.6.0](https://github.com/docat-org/docat/releases/tag/1.6.0)
- [https://github.com/docat-org/docat/security/advisories/GHSA-jcxj-j5qf-8crw](https://github.com/docat-org/docat/security/advisories/GHSA-jcxj-j5qf-8crw)
- [https://github.com/docat-org/docat/commit/85fc40e8348c6328f488395d03c779517a0913fd](https://github.com/docat-org/docat/commit/85fc40e8348c6328f488395d03c779517a0913fd)

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## What this record can't tell you

- Whether you run the affected software, and where
- Whether an attacker can actually reach and exploit it
- The misconfigurations that never get a CVE number
- What it would cost the business, ranked into what to fix first

Panop answers these inside your environment, for this CVE and every other finding.

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