# CVE-2026-41179: CVE-2026-41179

Status: published. Published: 2026-04-23. Updated: 2026-11-11.

Rclone is a command-line program to sync files and directories to and from different cloud storage providers. Starting in version 1.48.0 and prior to version 1.73.5, the RC endpoint `operations/fsinfo` is exposed without `AuthRequired: true` and accepts attacker-controlled `fs` input. Because `rc.GetFs(...)` supports inline backend definitions, an unauthenticated attacker can instantiate an attacker-controlled backend on demand. For the WebDAV backend, `bearer_token_command` is executed during backend initialization, making single-request unauthenticated local command execution possible on reachable RC deployments without global HTTP authentication. Version 1.73.5 patches the issue.

## Remediation

- fix: github.com/rclone/rclone (Go): OSV reports a fixed version 1.73.5. Check the advisory for supported release branches. (source: OSV GHSA-jfwf-28xr-xw6q) — https://github.com/advisories/GHSA-jfwf-28xr-xw6q

## Affected products and versions

- rclone / rclone: ≥ 1.48.0; < 1.73.5 (affected, custom). Source: NVD
-  / github.com/rclone/rclone (github.com/rclone/rclone): ≥ 1.48.0; < 1.73.5 (affected, semver); OSV events: introduced 1.48.0; fixed 1.73.5. Source: OSV GHSA-jfwf-28xr-xw6q

## NVD configuration conditions

Affected CPE matches depend on the following AND/OR and negation conditions:

```json
[
  {
    "negate": false,
    "nodes": [
      {
        "cpeMatch": [
          {
            "criteria": "cpe:2.3:a:rclone:rclone:*:*:*:*:*:*:*:*",
            "versionEndExcluding": "1.73.5",
            "versionStartIncluding": "1.48.0",
            "vulnerable": true
          }
        ],
        "negate": false,
        "operator": "OR"
      }
    ],
    "operator": "OR"
  }
]
```

## Severity and prioritization

- CVSS 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; source: NVD: security-advisories@github.com

- CVSS 3.1: 9.8 (critical); CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H; source: NVD: nvd@nist.gov

- CVSS 3.1: 9.8 (critical); CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H; source: NVD: 0b0ca135-0b70-47e7-9f44-1890c2a1c46c

- CISA KEV: No listing in collected sources

- EPSS: Not available

- SSVC: exploitation poc; automatable yes; technical impact total; source NVD SSVC: 134c704f-9b21-4f2e-91b3-4a467353bcc0

- Weaknesses: CWE-78, CWE-94

## Exploit evidence

- exploit: https://github.com/rclone/rclone/security/advisories/GHSA-jfwf-28xr-xw6q (security-advisories@github.com)
- exploit: https://github.com/rclone/rclone/security/advisories/GHSA-jfwf-28xr-xw6q (134c704f-9b21-4f2e-91b3-4a467353bcc0)

## References

- https://github.com/rclone/rclone/blob/bf55d5e6d37fd86164a87782191f9e1ffcaafa82/backend/webdav/webdav.go (security-advisories@github.com; Product)

- https://github.com/rclone/rclone/blob/bf55d5e6d37fd86164a87782191f9e1ffcaafa82/fs/operations/rc.go (security-advisories@github.com; Product)

- https://github.com/rclone/rclone/blob/bf55d5e6d37fd86164a87782191f9e1ffcaafa82/fs/rc/cache.go (security-advisories@github.com; Product)

- https://github.com/rclone/rclone/commit/2a9e952b38e03a96bf40c9eb6e8e22199865ee3b (security-advisories@github.com)

- https://github.com/rclone/rclone/releases/tag/v1.73.5 (security-advisories@github.com)

- https://github.com/rclone/rclone/security/advisories/GHSA-jfwf-28xr-xw6q (security-advisories@github.com; Exploit, Vendor Advisory)

- https://rclone.org/changelog/#v1-73-5-2026-04-19 (security-advisories@github.com)

- https://access.redhat.com/security/cve/CVE-2026-41179 (0b0ca135-0b70-47e7-9f44-1890c2a1c46c)

- https://bugzilla.redhat.com/show_bug.cgi?id=2460988 (0b0ca135-0b70-47e7-9f44-1890c2a1c46c)

- https://github.com/rclone/rclone/security/advisories/GHSA-jfwf-28xr-xw6q (134c704f-9b21-4f2e-91b3-4a467353bcc0; Exploit, Vendor Advisory)

- https://security.access.redhat.com/data/csaf/v2/vex/2026/cve-2026-41179.json (0b0ca135-0b70-47e7-9f44-1890c2a1c46c)

- https://github.com/advisories/GHSA-jfwf-28xr-xw6q (OSV / GitHub Security Advisories; advisory)

- https://osv.dev/vulnerability/GHSA-jfwf-28xr-xw6q (OSV / GitHub Security Advisories; osv)

## Provenance

- NVD: https://nvd.nist.gov/vuln/detail/CVE-2026-41179; retrieved 2026-11-12; source updated 2026-11-11

- OSV / GitHub Security Advisories: https://osv.dev/vulnerability/GHSA-jfwf-28xr-xw6q; retrieved 2026-11-12; source updated 2026-09-10

Revision: 21980b00b4563c446e8472410d8a9ee489abd52715e9923a4d1ae255bb65291a

Canonical: https://y2.dev/cve/CVE-2026-41179

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