{
"id": "GHSA-jgvr-6x5w-hx5w",
"aliases": [],
"details": "### Impact\nFeeding a KCL program that wraps an expression in deep, unnecessary parentheses triggers the parser’s recursive `expression` -> `unnecessarily_bracketed` -> `expression` path. With enough nesting, the call stack grows until it exceeds the process stack limit, causing a stack overflow.",
"summary": "Zoo Design Studio: Recursive KCL parsing is vulnerable to denial-of-service",
"affected": [
{
"ranges": [
{
"type": "ECOSYSTEM",
"events": [
{
"introduced": "0"
},
{
"fixed": "0.3.129"
}
]
}
],
"package": {
"name": "zoo-kcl",
"ecosystem": "PyPI"
}
},
{
"ranges": [
{
"type": "ECOSYSTEM",
"events": [
{
"introduced": "0"
},
{
"fixed": "0.3.129"
}
]
}
],
"package": {
"name": "kcl-lib",
"ecosystem": "crates.io"
},
"database_specific": {
"last_known_affected_version_range": "< 0.2.129"
}
}
],
"modified": "2026-08-20T18:34:05Z",
"severity": [
{
"type": "CVSS_V4",
"score": "CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:L/SC:N/SI:N/SA:N"
}
],
"published": "2026-08-20T18:34:05Z",
"references": [
{
"url": "https://github.com/KittyCAD/modeling-app/security/advisories/GHSA-jgvr-6x5w-hx5w",
"type": "WEB"
},
{
"url": "https://github.com/KittyCAD/modeling-app",
"type": "PACKAGE"
}
],
"schema_version": "1.4.0",
"database_specific": {
"cwe_ids": [
"CWE-770"
],
"severity": "MODERATE",
"github_reviewed": true,
"nvd_published_at": null,
"github_reviewed_at": "2026-08-20T18:34:05Z"
}
}