Prototype Pollution

Overview content-security-policy-parser is a Parse Content Security Policy directives. Affected versions of this package are vulnerable to Prototype Pollution via the parse function. An attacker can manipulate the Object prototype by supplying a crafted policy name in HTTP queries, potentially...

CVE-2025-55164 content-security-policy-parser Prototype Pollution Vulnerability May Lead to RCE

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...