CVE-2026-41176

publishedCWE-306CWE-15

Rclone is a command-line program to sync files and directories to and from different cloud storage providers. The RC endpoint `options/set` is exposed without `AuthRequired: true`, but it can mutate global runtime configuration, including the RC option block itself. Starting in version 1.45.0 and prior to version 1.73.5, an unauthenticated attacker can set `rc.NoAuth=true`, which disables the authorization gate for many RC methods registered with `AuthRequired: true` on reachable RC servers that are started without global HTTP authentication. This can lead to unauthorized access to sensitive administrative functionality, including configuration and operational RC methods. Version 1.73.5 patches the issue.

Technical severity9.2 criticalCVSS 4.0 · NVD: [email protected]

Published2026-04-23Source updated 2026-11-11

Collected2026-11-122 attributed sources

Fixes and workarounds

Fix

github.com/rclone/rclone (Go): OSV reports a fixed version 1.73.5. Check the advisory for supported release branches.

Source: OSV GHSA-25qr-6mpr-f7qx

Affected products and versions

Affected products, source version ranges and reporting authorities
Product	Versions	Authority
rclone rclone	≥ 1.45; < 1.73.5 (affected, custom)	NVD
github.com/rclone/rclone `github.com/rclone/rclone` Go	≥ 1.45.0; < 1.73.5 (affected, semver); OSV events: introduced 1.45.0; fixed 1.73.5 Source events (semver) `[ { "introduced": "1.45.0" }, { "fixed": "1.73.5" } ]` Other versions: unaffected	OSV GHSA-25qr-6mpr-f7qx

Version ranges are source assertions. Check the vendor advisory and your installed configuration before determining exposure.

NVD applicability configurations (1)

These expressions retain AND/OR operators, negation, and required environmental products. A listed product is not sufficient to establish exposure when additional conditions apply.

[
  {
    "negate": false,
    "nodes": [
      {
        "cpeMatch": [
          {
            "criteria": "cpe:2.3:a:rclone:rclone:*:*:*:*:*:*:*:*",
            "versionEndExcluding": "1.73.5",
            "versionStartIncluding": "1.45",
            "vulnerable": true
          }
        ],
        "negate": false,
        "operator": "OR"
      }
    ],
    "operator": "OR"
  }
]

CVSS assessments

CVSS scores, vectors and reporting authorities
Version / score	Vector	Authority
4.0 / 9.2 critical	`CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X`	NVD: [email protected]
3.1 / 9.8 critical	`CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H`	NVD: [email protected]
3.1 / 9.8 critical	`CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H`	NVD: 0b0ca135-0b70-47e7-9f44-1890c2a1c46c

Exploit evidence

https://github.com/rclone/rclone/security/advisories/GHSA-25qr-6mpr-f7qx
exploit · [email protected]
https://github.com/rclone/rclone/security/advisories/GHSA-25qr-6mpr-f7qx
exploit · 134c704f-9b21-4f2e-91b3-4a467353bcc0

References

https://github.com/rclone/rclone/blob/bf55d5e6d37fd86164a87782191f9e1ffcaafa82/fs/rc/config.go[email protected] · Product
https://github.com/rclone/rclone/blob/bf55d5e6d37fd86164a87782191f9e1ffcaafa82/fs/rc/rcserver/rcserver.go[email protected] · Product
https://github.com/rclone/rclone/security/advisories/GHSA-25qr-6mpr-f7qx[email protected] · Exploit, Vendor Advisory
https://access.redhat.com/security/cve/CVE-2026-411760b0ca135-0b70-47e7-9f44-1890c2a1c46c
https://bugzilla.redhat.com/show_bug.cgi?id=24609890b0ca135-0b70-47e7-9f44-1890c2a1c46c
https://github.com/rclone/rclone/security/advisories/GHSA-25qr-6mpr-f7qx134c704f-9b21-4f2e-91b3-4a467353bcc0 · Exploit, Vendor Advisory
https://security.access.redhat.com/data/csaf/v2/vex/2026/cve-2026-41176.json0b0ca135-0b70-47e7-9f44-1890c2a1c46c
https://github.com/advisories/GHSA-25qr-6mpr-f7qxOSV / GitHub Security Advisories · advisory
https://osv.dev/vulnerability/GHSA-25qr-6mpr-f7qxOSV / GitHub Security Advisories · osv

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