# CVE-2026-41179: RClone: Unauthenticated operations/fsinfo allows attacker-controlled backend instantiation and local command execution

> Unauthenticated attackers can execute local commands via the operations/fsinfo endpoint if the RC server is enabled without global authentication.

- **Severity:** Critical 9.2 (`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`)
- **Exploited in the wild:** Not known
- **Login needed:** Not needed
- **Attackable:** Over the internet
- **Victim action needed:** Not needed
- **Fix available:** Yes
- **Published:** 23 Apr 2026
- **Updated:** 15 Jul 2026
- **Also known as:** BIT-rclone-2026-41179, DEBIAN-CVE-2026-41179, GHSA-jfwf-28xr-xw6q, GO-2026-5466, JLSEC-2026-281, MINI-967h-wf84-m7j9, MINI-ch97-5xqr-wppj, MINI-hx4p-pmg5-wvh8, MINI-mpq7-hrvr-mmqw, MINI-mqvp-j5fx-xqj7, MINI-pq38-q77g-hx95, ROOT-APP-GOBINARY-CVE-2026-41179, UBUNTU-CVE-2026-41179

## What is CVE-2026-41179?

CVE-2026-41179 is a critical command injection vulnerability in rclone, published on 23 Apr 2026. An attacker can exploit it over the internet without logging in, with no action from the victim.

### Official description

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.

Weakness: CWE-94 (Improper Control of Generation of Code), CWE-78 (Improper Neutralization of Special Elements used in an OS Command), CWE-306 (Missing Authentication for Critical Functionality)

## Which versions are affected by CVE-2026-41179?

5 open source packages ship an affected version, including github.com/rclone/rclone, rclone and github.com/ncw/rclone. It affects 1 product.


| Package | Ecosystem | Affected | Fixed in |
| --- | --- | --- | --- |
| `github.com/rclone/rclone` | Go | From 1.48.0 | 1.73.5 |
| `github.com/rclone/rclone` | Go | From 1.48.0 | 1.73.5 |
| `github.com/rclone/rclone` | Go | From 1.49.0 | 1.73.5 |
| `rclone` | Bitnami | From 1.48.0 | 1.73.5 |
| `github.com/ncw/rclone` | Go | From 1.48.0 | None |

Products: Rclone Rclone.

## How do I fix CVE-2026-41179?

Upgrade github.com/rclone/rclone to 1.73.5 or later.

## Is CVE-2026-41179 being exploited?

It is not confirmed as exploited in the wild, but public exploit code for CVE-2026-41179 exists.

Public exploit code:

- POC for CVE-2026-41179 (github_poc): https://github.com/pssec-io/CVE-2026-41179
- RCE in rclone (github_poc): https://github.com/s-vx/CVE-2026-41179
- RClone RC - Command Injection (nuclei): http/cves/2026/CVE-2026-41179.yaml

## Other vulnerabilities in rclone

- [CVE-2026-88018](https://insights.sbomify.com/CVE-2026-88018/): rclone serve s3: --auth-proxy without --auth-key authenticates nobody - full SigV4 signature bypass (critical 9.8)
- [CVE-2026-49980](https://insights.sbomify.com/CVE-2026-49980/): Rclone: Unauthenticated command execution in `rclone rcd --rc-serve` via inline remote instantiation, bypassing CVE-2026-41179 fix (critical 9.8)
- [CVE-2026-41176](https://insights.sbomify.com/CVE-2026-41176/): Rclone: Unauthenticated options/set allows runtime auth bypass, leading to sensitive operations and command execution (critical 9.2)
- [CVE-2026-59733](https://insights.sbomify.com/CVE-2026-59733/): rclone `serve restic --private-repos` authorization bypass: `..` in the URL path lets an authenticated user read, overwrite and delete other users' repositories (high 8.8)
- [CVE-2026-116191](https://insights.sbomify.com/CVE-2026-116191/): Rclone before 1.75.2 Path Traversal via serve webdav MKCOL (high 8.7)

## Fix prompt for AI coding agents

```text
Check this codebase for CVE-2026-41179 and fix it if it is affected.

What it is: CVE-2026-41179 is a critical command injection vulnerability in rclone, published on 23 Apr 2026. An attacker can exploit it over the internet without logging in, with no action from the victim.
Exploitation: It is not confirmed as exploited in the wild, but public exploit code for CVE-2026-41179 exists.

Affected packages and fixed versions:
- github.com/rclone/rclone (Go): affected from 1.48.0; fixed in 1.73.5
- github.com/rclone/rclone (Go): affected from 1.48.0; fixed in 1.73.5
- github.com/rclone/rclone (Go): affected from 1.49.0; fixed in 1.73.5
- rclone (Bitnami): affected from 1.48.0; fixed in 1.73.5
- github.com/ncw/rclone (Go): affected from 1.48.0; no fix listed

Task:
1. Search the dependency manifests and lockfiles (for example package.json, package-lock.json, requirements.txt, poetry.lock, uv.lock, pom.xml, build.gradle, go.mod, Cargo.lock, Gemfile.lock) and any Dockerfiles for the affected packages, including transitive dependencies.
2. If an affected version is in use, upgrade it to the fixed version for its release line with the project's package manager, so the lockfile is regenerated. Prefer the smallest upgrade that fixes it.
3. If there is no fix, or the upgrade would break the build, do not guess: explain the risk and the safest workaround instead.
4. Run the tests and summarise what changed and why.
5. If nothing in the project is affected, say so and change nothing.

Reference: https://insights.sbomify.com/CVE-2026-41179/ (Markdown: https://insights.sbomify.com/CVE-2026-41179/index.md)
```

## Sources

- CVE record: https://www.cve.org/CVERecord?id=CVE-2026-41179
- NVD: https://nvd.nist.gov/vuln/detail/CVE-2026-41179
- OSV: https://osv.dev/vulnerability/CVE-2026-41179

---
From sbomify Insights: https://insights.sbomify.com/CVE-2026-41179/
Summaries are generated and may contain mistakes; the official description above is the record.