DEBIAN-CVE-2026-9277
shell-quote's `quote()` function did not validate object-token inputs against the operator model used by `parse()`. The `.op` field was backslash-escaped character by character using `/(.)/g`, which in JavaScript does not match line terminators (\n, \r, U+2028, U+2029). A line terminator in `.op` therefore passed through unescaped into the output; POSIX shells treat a literal newline as a command separator, so any content after it would execute as a second command. The vulnerable code path is reachable in two ways: (1) direct construction of `{ op: '...\n...' }` from external input, and (2) via `parse(cmd, envFn)` when `envFn` returns object tokens whose `.op` is attacker-influenced. Both are documented API surface. Fixed by replacing the per-character escape with strict shape validation: `.op` must match the parser's control-operator allowlist; `{ op: 'glob', pattern }` validates `pattern` and forbids line terminators; `{ comment }` validates `comment` and forbids line terminators; any other object shape throws `TypeError`.
DEBIAN-CVE-2026-9277
Primary source · Revision 1
Imported from structured advisory data. Source references identify upstream records or fields; verify affected versions and your deployed configuration.
Security context
Source reference: osv:DEBIAN-CVE-2026-9277
node-shell-quote
Source reference: /affected/0/package/name
- Affected versions
- 1.7.4+~1.7.1-1
Source reference:
/affected/0/versions - Fixed versions
- 1.7.4+~1.7.1-1+deb12u1
Source reference:
/affected/0/ranges - Prerequisites
- Not stated in this record
node-shell-quote
Source reference: /affected/1/package/name
- Affected versions
- 1.7.4+~1.7.1-1
Source reference:
/affected/1/versions - Fixed versions
- 1.7.4+~1.7.1-1+deb13u1
Source reference:
/affected/1/ranges - Prerequisites
- Not stated in this record
node-shell-quote
Source reference: /affected/2/package/name
- Affected versions
- 1.7.4+~1.7.1-1
Source reference:
/affected/2/versions1.7.4+~1.7.1-2Source reference:
/affected/2/versions1.8.3+~1.7.5-1Source reference:
/affected/2/versions - Fixed versions
- 1.8.4+~1.7.5-1
Source reference:
/affected/2/ranges - Prerequisites
- Not stated in this record
Structured affected-version data
Original package identities and version rules from this source.
[
{
"ranges": [
{
"type": "ECOSYSTEM",
"events": [
{
"introduced": "0"
},
{
"fixed": "1.7.4+~1.7.1-1+deb12u1"
}
]
}
],
"package": {
"name": "node-shell-quote",
"purl": "pkg:deb/debian/node-shell-quote?arch=source&distro=bookworm",
"ecosystem": "Debian:12"
},
"versions": [
"1.7.4+~1.7.1-1"
],
"database_specific": {
"source": "https://storage.googleapis.com/debian-osv/debian-cve-osv/DEBIAN-CVE-2026-9277.json"
},
"ecosystem_specific": {
"urgency": "not yet assigned"
}
},
{
"ranges": [
{
"type": "ECOSYSTEM",
"events": [
{
"introduced": "0"
},
{
"fixed": "1.7.4+~1.7.1-1+deb13u1"
}
]
}
],
"package": {
"name": "node-shell-quote",
"purl": "pkg:deb/debian/node-shell-quote?arch=source&distro=trixie",
"ecosystem": "Debian:13"
},
"versions": [
"1.7.4+~1.7.1-1"
],
"database_specific": {
"source": "https://storage.googleapis.com/debian-osv/debian-cve-osv/DEBIAN-CVE-2026-9277.json"
},
"ecosystem_specific": {
"urgency": "not yet assigned"
}
},
{
"ranges": [
{
"type": "ECOSYSTEM",
"events": [
{
"introduced": "0"
},
{
"fixed": "1.8.4+~1.7.5-1"
}
]
}
],
"package": {
"name": "node-shell-quote",
"purl": "pkg:deb/debian/node-shell-quote?arch=source&distro=forky",
"ecosystem": "Debian:14"
},
"versions": [
"1.7.4+~1.7.1-1",
"1.7.4+~1.7.1-2",
"1.8.3+~1.7.5-1"
],
"database_specific": {
"source": "https://storage.googleapis.com/debian-osv/debian-cve-osv/DEBIAN-CVE-2026-9277.json"
},
"ecosystem_specific": {
"urgency": "not yet assigned"
}
}
]Publisher severity
No explicit severity was provided.
- Event
- #58415 · Revision 1
- Added to Heist Feed
- Publisher date