---
id: CVE-2026-79778
title: >-
  rclone before v1.75.0 contains a denial of service vulnerability in the WebDAV
  TUS creation handler that dereferences a nil response before checking for
  transport errors
summary: >-
  rclone before v1.75.0 contains a denial of service vulnerability in the WebDAV
  TUS creation handler that dereferences a nil response before checking for
  transport errors. A malicious or compromised configured endpoint can reset
  connectio…
severity: medium
cvss: 5.3
cvssVector: 'CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:U/C:N/I:N/A:H'
cwe:
  - CWE-248
vendor: rclone
product: github.com/rclone/rclone
affected:
  - github.com/rclone/rclone < 1.75.0
patched:
  - github.com/rclone/rclone 1.75.0
published: '2026-08-25'
updated: '2026-09-10'
sourceUpdated: '2026-09-10T20:46:19.780'
source: NVD
sourceUrl: 'https://nvd.nist.gov/vuln/detail/CVE-2026-79778'
references:
  - url: 'https://github.com/rclone/rclone/security/advisories/GHSA-3x6r-wxxg-53vv'
    label: disclosure@vulncheck.com
  - url: >-
      https://www.vulncheck.com/advisories/rclone-before-denial-of-service-via-tus-nil-response-panic
    label: disclosure@vulncheck.com
  - url: 'https://github.com/rclone/rclone/security/advisories/GHSA-3x6r-wxxg-53vv'
    label: 134c704f-9b21-4f2e-91b3-4a467353bcc0
  - url: >-
      https://github.com/rclone/rclone/commit/5871d98c368751a6d992ed64f8cd22cb78c44cee
  - url: 'https://github.com/rclone/rclone'
  - url: 'https://github.com/rclone/rclone/releases/tag/v1.75.0'
tags:
  - nvd
  - osv
  - go
epss: 0.00233
epssPercentile: 0.14471
aliases:
  - GHSA-3x6r-wxxg-53vv
  - GO-2026-6183
ecosystem: go
ingestedAt: '2026-08-27T19:27:46.161Z'
---

## Overview

rclone before v1.75.0 contains a denial of service vulnerability in the WebDAV TUS creation handler that dereferences a nil response before checking for transport errors. A malicious or compromised configured endpoint can reset connections during TUS uploads to trigger a panic that terminates unrecovered goroutines and halts unrelated work in long-lived processes.

## Remediation

Refer to the linked advisories for vendor-supplied fixes and affected version ranges.

## Package advisory (CVE-2026-79778)

Affected packages:

- `github.com/rclone/rclone < 1.75.0`

Patched in:

- `github.com/rclone/rclone 1.75.0`

Source: https://osv.dev/vulnerability/GHSA-3x6r-wxxg-53vv