DEBIAN-CVE-2026-9277

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Source
https://security-tracker.debian.org/tracker/CVE-2026-9277
Import Source
https://storage.googleapis.com/debian-osv/debian-cve-osv/DEBIAN-CVE-2026-9277.json
JSON Data
https://api.osv.dev/v1/vulns/DEBIAN-CVE-2026-9277
Upstream
  • CVE-2026-9277
Published
2026-05-22T14:16:30.330Z
Modified
2026-05-26T23:00:09.453410686Z
Severity
  • 9.2 (Critical) CVSS_V4 - 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/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X CVSS Calculator
Summary
[none]
Details

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.

References

Affected packages

Debian:12 / node-shell-quote

Package

Name
node-shell-quote
Purl
pkg:deb/debian/node-shell-quote?arch=source&distro=bookworm

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0Unknown introduced version / All previous versions are affected
Fixed
1.7.4+~1.7.1-1+deb12u1

Affected versions

1.*
1.7.4+~1.7.1-1

Ecosystem specific 

{
    "urgency": "not yet assigned"
}

Database specific

source 
"https://storage.googleapis.com/debian-osv/debian-cve-osv/DEBIAN-CVE-2026-9277.json"

Debian:13 / node-shell-quote

Package

Name
node-shell-quote
Purl
pkg:deb/debian/node-shell-quote?arch=source&distro=trixie

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0Unknown introduced version / All previous versions are affected
Fixed
1.7.4+~1.7.1-1+deb13u1

Affected versions

1.*
1.7.4+~1.7.1-1

Ecosystem specific 

{
    "urgency": "not yet assigned"
}

Database specific

source 
"https://storage.googleapis.com/debian-osv/debian-cve-osv/DEBIAN-CVE-2026-9277.json"

Debian:14 / node-shell-quote

Package

Name
node-shell-quote
Purl
pkg:deb/debian/node-shell-quote?arch=source&distro=forky

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0Unknown introduced version / All previous versions are affected
Fixed
1.8.4+~1.7.5-1

Affected versions

1.*
1.7.4+~1.7.1-1
1.7.4+~1.7.1-2
1.8.3+~1.7.5-1

Ecosystem specific 

{
    "urgency": "not yet assigned"
}

Database specific

source 
"https://storage.googleapis.com/debian-osv/debian-cve-osv/DEBIAN-CVE-2026-9277.json"