[renovate]

This PR contains the following updates:

Package	Change	Age	Confidence
shell-quote	1.10.0 → 1.11.0

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shell-quote: quote() command injection via a line terminator in a token after a { comment } token

CVE-2026-102422 / GHSA-pqg4-j6r4-53mv

More information

Details

Impact

quote() 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 in that later string ends the comment, and the rest of the string is parsed as shell input:

quote(['echo', 'ok', { comment: 'x' }, 'a\nid;#']);
// echo ok #x 'a
// id;#'

Passed to sh, bash, dash, ksh, or zsh, this runs id.

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.

Exploitation requires an attacker-controlled string containing a line terminator that follows a { comment } token in the same quote() call.

Patches

Fixed in v1.11.0: quote() throws a TypeError when a string after a { comment } token contains a line terminator (\n, \r, U+2028, or U+2029).

Workarounds

Drop every token after a { comment } token before calling quote(), or reject line terminators in untrusted strings. Separately, do not append other shell text after quote() output that contains a comment, since the comment swallows it.

Severity

• CVSS Score: 9.2 / 10 (Critical)
• Vector String: 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

• https://github.com/ljharb/shell-quote/security/advisories/GHSA-pqg4-j6r4-53mv
• https://nvd.nist.gov/vuln/detail/CVE-2026-102422
• https://github.com/ljharb/shell-quote/commit/6002b2ed90c6b83095eb272b6b0adaf3a172b0bc
• https://github.com/advisories/GHSA-pqg4-j6r4-53mv

This data is provided by the GitHub Advisory Database (CC-BY 4.0).

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Release Notes

ljharb/shell-quote (shell-quote)

v1.11.0

Compare Source

Fixed

• [Refactor] quote: drop a replace that can never match in the single-quote branch #15
• [New] parse: support bash ANSI-C quoting ($'...') #32

Commits

• [Fix] quote: reject line terminators in tokens after a comment 6002b2e
• [Fix] parse: preserve text after special shell parameters 81b08a5
• [Fix] parse: an escaped backslash does not escape the character after it d708019
• [Fix] quote: preserve ! in arguments that also contain ' ad39927
• [Fix] parse: treat $_name as a variable name, not $_ followed by text 28f88cd
• [Fix] quote: preserve empty glob patterns 35c9b97
• [Fix] quote: escape ~ in glob patterns to prevent shell tilde-expansion 239d49c
• [Dev Deps] update @ljharb/eslint-config, auto-changelog, eslint, evalmd b1e406e
• [meta] npmignore some files ebfc308
• [actions] add permissions 3429b0d
• [actions] set least-privilege cache-mode 36f2394
• [Dev Deps] update eslint 6de9a41

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[sapphi-red]

This doesn't affect as we don't use the quote function.