content-security-policy-parser parses content security policy directives. A prototype pollution vulnerability exists in versions 0.5.0 and earlier, wherein if a policy name is called proto, one can override the Object prototype. This issue has been patched in version 0.6.0. A workaround involves disabling prototype method in NodeJS, neutralizing all possible prototype pollution attacks. Provide either --disable-proto=delete (recommended) or --disable-proto=throw as an argument to node to enable this feature.
{
"osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2025/55xxx/CVE-2025-55164.json",
"cna_assigner": "GitHub_M",
"cwe_ids": [
"CWE-1321"
]
}