CVE-2025-55164 Information

Aug 13, 2025 cve

Description

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.

Reference

https://github.com/helmetjs/content-security-policy-parser/commit/b13a52554f0168af393e3e38ed4a94e9e6aea9dc https://github.com/helmetjs/content-security-policy-parser/issues/11 https://github.com/helmetjs/content-security-policy-parser/security/advisories/GHSA-w2cq-g8g3-gm83

CNNVD-202508-1068 (Published: 2025-08-12)

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