# CVE-2026-35341: rust-coreutils: A vulnerability in uutils coreutils mkfifo allows for the unauthorized modification of permissions on existing files

CVE-2026-35341 is fixed in rust-coreutils on 1 platform by DEBIAN-CVE-2026-35341 (version 0.10.0-1), released April 22, 2026. It is not reported as exploited. Patch Radar priority: High.

- Web page: https://patchblox.com/security/cve/CVE-2026-35341
- Priority: High
- CVSS: 7.1 (high)
- EPSS: 0.0017
- CISA KEV: not listed
- Exploited (vendor report): no
- Publicly disclosed: no
- Published: Apr 22, 2026

## Description

A vulnerability in uutils coreutils mkfifo allows for the unauthorized modification of permissions on existing files. When mkfifo fails to create a FIFO because a file already exists at the target path, it fails to terminate the operation for that path and continues to execute a follow-up set_permissions call. This results in the existing file's permissions being changed to the default mode (often 644 after umask), potentially exposing sensitive files such as SSH private keys to other users on the system.

## Where it's fixed

| Platform | Product | Fixed in | Fix | Released |
|---|---|---|---|---|
| Linux | rust-coreutils Debian 14 | 0.10.0-1 | [DEBIAN-CVE-2026-35341](https://patchblox.com/security/data/fix/linux/debian-cve-2026-35341.md) | Apr 22, 2026 |

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Data as of 2026-11-08T06:59:42Z UTC. Source: Patchblox Patch Radar (https://patchblox.com/security/patch-radar). Patchblox finds out-of-date software on Windows, macOS and Linux and updates it through release rings: https://patchblox.com/demo

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