{"dataType":"CVE_RECORD","dataVersion":"5.1","cveMetadata":{"cveId":"CVE-2025-55164","assignerOrgId":"a0819718-46f1-4df5-94e2-005712e83aaa","state":"PUBLISHED","assignerShortName":"GitHub_M","dateReserved":"2025-08-07T18:27:23.307Z","datePublished":"2025-08-12T16:02:44.952Z","dateUpdated":"2025-08-20T19:39:47.679Z"},"containers":{"cna":{"title":"content-security-policy-parser Prototype Pollution Vulnerability May Lead to RCE","problemTypes":[{"descriptions":[{"cweId":"CWE-1321","lang":"en","description":"CWE-1321: Improperly Controlled Modification of Object Prototype Attributes ('Prototype Pollution')","type":"CWE"}]}],"metrics":[{"cvssV4_0":{"attackVector":"NETWORK","attackComplexity":"LOW","attackRequirements":"NONE","privilegesRequired":"NONE","userInteraction":"NONE","vulnConfidentialityImpact":"NONE","vulnIntegrityImpact":"HIGH","vulnAvailabilityImpact":"HIGH","subConfidentialityImpact":"NONE","subIntegrityImpact":"NONE","subAvailabilityImpact":"NONE","baseScore":8.8,"baseSeverity":"HIGH","vectorString":"CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:H/VA:H/SC:N/SI:N/SA:N","version":"4.0"}}],"references":[{"name":"https://github.com/helmetjs/content-security-policy-parser/security/advisories/GHSA-w2cq-g8g3-gm83","tags":["x_refsource_CONFIRM"],"url":"https://github.com/helmetjs/content-security-policy-parser/security/advisories/GHSA-w2cq-g8g3-gm83"},{"name":"https://github.com/helmetjs/content-security-policy-parser/issues/11","tags":["x_refsource_MISC"],"url":"https://github.com/helmetjs/content-security-policy-parser/issues/11"},{"name":"https://github.com/helmetjs/content-security-policy-parser/commit/b13a52554f0168af393e3e38ed4a94e9e6aea9dc","tags":["x_refsource_MISC"],"url":"https://github.com/helmetjs/content-security-policy-parser/commit/b13a52554f0168af393e3e38ed4a94e9e6aea9dc"}],"affected":[{"vendor":"helmetjs","product":"content-security-policy-parser","versions":[{"version":"< 0.6.0","status":"affected"}]}],"providerMetadata":{"orgId":"a0819718-46f1-4df5-94e2-005712e83aaa","shortName":"GitHub_M","dateUpdated":"2025-08-12T16:03:21.616Z"},"descriptions":[{"lang":"en","value":"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."}],"source":{"advisory":"GHSA-w2cq-g8g3-gm83","discovery":"UNKNOWN"}},"adp":[{"metrics":[{"other":{"type":"ssvc","content":{"timestamp":"2025-08-12T17:52:38.896996Z","id":"CVE-2025-55164","options":[{"Exploitation":"none"},{"Automatable":"yes"},{"Technical Impact":"partial"}],"role":"CISA Coordinator","version":"2.0.3"}}}],"title":"CISA ADP Vulnrichment","providerMetadata":{"orgId":"134c704f-9b21-4f2e-91b3-4a467353bcc0","shortName":"CISA-ADP","dateUpdated":"2025-08-12T17:53:03.769Z"}},{"providerMetadata":{"orgId":"af854a3a-2127-422b-91ae-364da2661108","shortName":"CVE","dateUpdated":"2025-08-20T19:39:47.679Z"},"references":[{"url":"https://www.vicarius.io/vsociety/posts/cve-2025-55164-detect-node-csp-parser-vulnerability"},{"url":"https://www.vicarius.io/vsociety/posts/cve-2025-55164-mitigate-csp-parser-vulnerability"}],"title":"CVE Program Container","x_generator":{"engine":"ADPogram 0.0.1"}}]}}