---
title: "CVE-2026-102422\n    | Ubuntu"
description: Ubuntu is an open source software operating system that runs from the
  desktop, to the cloud, to all your internet connected things.
url: https://ubuntu.com/security/CVE-2026-102422?format=md
keywords: index, follow
---

# CVE-2026-102422

Publication date 29 September 2026

Last updated 29 September 2026

---

Ubuntu priority

**Medium**

[Why this priority?](https://ubuntu.com/security/cves/about#priority )

## Cvss 3 Severity Score

**8.1 · High**

[Score breakdown](https://ubuntu.com/security/CVE-2026-102422?format=md#impact-score)

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## Description

shell-quote's `quote()` function emits a `{ comment }` token as `#`
followed by its text, which comments out the rest of the shell line,
including the opening quote of any later string token. A line terminator
(\n, \r, U+2028, U+2029) in that later string therefore ends the comment,
and the rest of the string is parsed as shell input: `quote(['echo', 'ok',
{ comment: 'x' }, 'a\nid;#'])` runs `id` in sh, bash, dash, ksh and zsh.
`parse()` emits a comment token for a `#` in the middle of a word (for
example `http://example.com/#frag`), so callers that combine `parse()`
output with another untrusted string, such as
`quote(parse(untrustedCommand).concat(untrustedArg))`, are affected. The
fix for CVE-2026-9277 rejected line terminators in the comment's own text,
but not in the tokens after it. Fixed in 1.11.0: `quote()` throws a
`TypeError` when a string after a `{ comment }` token contains a line
terminator.

## Status

Show unmaintained releases

| Package | Ubuntu Release | Status |
| --- | --- | --- |
| node-shell-quote | 26.04 LTS resolute | Needs evaluation |
| 24.04 LTS noble | Needs evaluation |
| 22.04 LTS jammy | Needs evaluation |
| 18.04 LTS bionic | Needs evaluation |

---

* [How can I get the fixes?](https://ubuntu.com/security/cves/about#security)
* [What do statuses mean?](https://ubuntu.com/security/cves/about#statuses)

## Severity score breakdown

CVSS version:

CVSS v4.0

[CVSS v4.0](https://ubuntu.com/security/CVE-2026-102422?format=md)
[CVSS v3.0](https://ubuntu.com/security/CVE-2026-102422?format=md)

**Base score**

9.2 · Critical

* Base metrics

  | Parameter | Value |
  | --- | --- |
  | Attack vector | Network |
  | Attack complexity | Low |
  | Attack requirements | Present |
  | Privileges required | None |
  | User interaction | None |
  | Vulnerable system - Confidentiality impact | High |
  | Vulnerable system - Integrity impact | High |
  | Vulnerable system - Availability impact | High |
  | Subsequent system - Confidentiality impact | None |
  | Subsequent system - Integrity impact | None |
  | Subsequent system - Availability impact | None |
* Scores

  | Parameter | Value |
  | --- | --- |
  | Base score | 9.2 · Critical |
  | Base + Threat score | - |
  | Base + Environmental score | - |
  | Base + Threat + Environmental score | - |

**Vector:** 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

## References

* [MITRE](https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2026-102422)
* [NVD](https://nvd.nist.gov/vuln/detail/CVE-2026-102422)
* [Launchpad](https://launchpad.net/bugs/cve/CVE-2026-102422)
* [Debian](https://security-tracker.debian.org/tracker/CVE-2026-102422)

### Other references

* <https://www.cve.org/CVERecord?id=CVE-2026-102422>
* <https://github.com/ljharb/shell-quote>
* <https://github.com/ljharb/shell-quote/commit/6002b2ed90c6b83095eb272b6b0adaf3a172b0bc>
* <https://github.com/ljharb/shell-quote/security/advisories/GHSA-pqg4-j6r4-53mv>
* <https://www.npmjs.com/package/shell-quote>