CVE-2026-13311

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Source
https://cve.org/CVERecord?id=CVE-2026-13311
Import Source
https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-13311.json
JSON Data
https://api.osv.dev/v1/vulns/CVE-2026-13311
Aliases
  • GHSA-395f-4hp3-45gv
Downstream
Related
Published
2026-06-25T04:48:36.351Z
Modified
2026-07-15T01:49:14.796782655Z
Severity
  • 8.7 (High) CVSS_V4 - CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N CVSS Calculator
Summary
shell-quote parse() is quadratic in token count, enabling denial of service
Details

shell-quote prior to 1.8.5 finalizes parsed tokens in parse() using Array.prototype.concat as a reduce accumulator, which reallocates and copies the entire growing array on every iteration. As a result parse() runs in O(n^2) time relative to the number of input tokens. An attacker who can supply an attacker-controlled string to any code path that calls parse() (no shell metacharacters are required; plain space-separated words suffice) can block the single-threaded Node.js event loop for an extended period with a small input, resulting in a denial of service. There is no code execution or data disclosure; impact is to availability only. Fixed in 1.8.5.

Database specific 
{
    "osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/13xxx/CVE-2026-13311.json",
    "cwe_ids": [
        "CWE-407"
    ],
    "cna_assigner": "harborist"
}
References

Affected packages

Git / github.com/ljharb/shell-quote

Affected ranges

Type
GIT
Repo
https://github.com/ljharb/shell-quote
Events
Introduced
0 Unknown introduced commit / All previous commits are affected
Fixed
db09fc7a9e3546807c19e2de2682ec31112a6520
Database specific 
{
    "cpe": "cpe:2.3:a:shell-quote_project:shell-quote:*:*:*:*:*:node.js:*:*",
    "source": [
        "AFFECTED_FIELD",
        "CPE_RANGE"
    ],
    "extracted_events": [
        {
            "introduced": "0"
        },
        {
            "last_affected": "1.8.4"
        },
        {
            "fixed": "1.9.0"
        }
    ]
}

Affected versions

v0.*
v0.0.0
v0.0.1
v0.1.0
v0.1.1
v1.*
v1.0.0
v1.1.0
v1.2.0
v1.3.0
v1.3.1
v1.3.2
v1.3.3
v1.4.0
v1.4.1
v1.4.2
v1.4.3
v1.5.0
v1.6.0
v1.6.1
v1.6.2
v1.6.3
v1.7.0
v1.7.1
v1.7.2
v1.7.3
v1.7.4
v1.8.0
v1.8.1
v1.8.2
v1.8.3
v1.8.4

Database specific

source 
"https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-13311.json"