---
id: CVE-2026-79776
title: >-
  rclone before 1.75.0 mounts the pprof debug handler as its own router route,
  bypassing the fail-closed authentication rule in the main handler
summary: >-
  rclone before 1.75.0 mounts the pprof debug handler as its own router route,
  bypassing the fail-closed authentication rule in the main handler. Attackers
  can access the /debug/pprof/cmdline endpoint unauthenticated to retrieve the
  full p…
severity: medium
cvss: 5.3
cvssVector: 'CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N'
cwe:
  - CWE-200
  - CWE-305
vendor: rclone
product: rclone
affected:
  - 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-2026-79776'
references:
  - url: 'https://github.com/rclone/rclone/security/advisories/GHSA-mfvx-7rcj-9m5g'
    label: disclosure@vulncheck.com
  - url: >-
      https://www.vulncheck.com/advisories/rclone-before-authentication-bypass-via-pprof
    label: disclosure@vulncheck.com
  - url: 'https://github.com/rclone/rclone/security/advisories/GHSA-mfvx-7rcj-9m5g'
    label: 134c704f-9b21-4f2e-91b3-4a467353bcc0
  - url: >-
      https://security.access.redhat.com/data/csaf/v2/vex/2026/cve-2026-79776.json
  - url: 'https://access.redhat.com/security/cve/CVE-2026-79776'
  - url: 'https://bugzilla.redhat.com/show_bug.cgi?id=2523573'
  - url: 'https://www.cve.org/CVERecord?id=CVE-2026-79776'
  - url: 'https://nvd.nist.gov/vuln/detail/CVE-2026-79776'
tags:
  - nvd
  - cve.org
  - exploit-available
  - csaf
  - vex
  - red-hat
  - score-dispute
exploitAvailable: true
ssvc:
  exploitation: poc
  automatable: 'yes'
  technicalImpact: partial
  timestamp: '2026-08-25T17:27:51.547310Z'
ingestedAt: '2026-09-14T14:02:44.311Z'
epss: 0.00304
epssPercentile: 0.23407
scores:
  nvd: 5.3
  vendor: 7.5
---

## Overview

rclone before 1.75.0 mounts the pprof debug handler as its own router route, bypassing the fail-closed authentication rule in the main handler. Attackers can access the /debug/pprof/cmdline endpoint unauthenticated to retrieve the full process argv including backend credentials.

## Remediation

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

## Vendor advisories

- **Red Hat VEX** · Important · updated 2026-09-21 · [vex](https://security.access.redhat.com/data/csaf/v2/vex/2026/cve-2026-79776.json)