{"id":"CVE-2025-13466","state":"PUBLISHED","title":"body-parser vulnerable to denial of service when url encoding is used","description":"body-parser 2.2.0 is vulnerable to denial of service due to inefficient handling of URL-encoded bodies with very large numbers of parameters. An attacker can send payloads containing thousands of parameters within the default 100KB request size limit, causing elevated CPU and memory usage. This can lead to service slowdown or partial outages under sustained malicious traffic.\nThis issue is addressed in version 2.2.1.","publishedAt":"2025-11-24T18:29:36.725Z","updatedAt":"2025-11-24T18:57:00.939Z","severity":{"score":5.5,"label":"Medium","version":"4.0","vector":"CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:L/SC:N/SI:N/SA:L/E:P/AU:Y","source":"openjs"},"assigner":"openjs","products":["body-parser body-parser"],"affected":[{"vendor":"body-parser","product":"body-parser","packageName":"body-parser","defaultStatus":"unaffected","versions":[{"version":"2.2.0","status":"affected","versionType":"semver"}],"repo":"https://github.com/expressjs/body-parser"}],"references":["https://github.com/expressjs/body-parser/security/advisories/GHSA-wqch-xfxh-vrr4"],"weaknesses":["CWE-400"],"ingestedAt":"2026-10-29T20:08:31.050Z","source":{"repository":"CVEProject/cvelistV5","path":"cves/2025/13xxx/CVE-2025-13466.json","commit":"556c9d3a8cd17e218bb8e452ba7cd619a384ff47"},"raw":{"dataType":"CVE_RECORD","dataVersion":"5.2","cveMetadata":{"cveId":"CVE-2025-13466","state":"PUBLISHED","datePublished":"2025-11-24T18:29:36.725Z","dateUpdated":"2025-11-24T18:57:00.939Z","assignerShortName":"openjs","assignerOrgId":"ce714d77-add3-4f53-aff5-83d477b104bb","dateReserved":"2025-11-20T02:16:16.283Z"},"containers":{"cna":{"title":"body-parser vulnerable to denial of service when url encoding is used","descriptions":[{"lang":"en","value":"body-parser 2.2.0 is vulnerable to denial of service due to inefficient handling of URL-encoded bodies with very large numbers of parameters. An attacker can send payloads containing thousands of parameters within the default 100KB request size limit, causing elevated CPU and memory usage. This can lead to service slowdown or partial outages under sustained malicious traffic.\nThis issue is addressed in version 2.2.1."}],"affected":[{"vendor":"body-parser","product":"body-parser","packageName":"body-parser","defaultStatus":"unaffected","versions":[{"version":"2.2.0","status":"affected","versionType":"semver"}],"repo":"https://github.com/expressjs/body-parser"}],"references":[{"url":"https://github.com/expressjs/body-parser/security/advisories/GHSA-wqch-xfxh-vrr4","tags":["vendor-advisory"]}],"metrics":[{"cvssV4_0":{"Automatable":"YES","Recovery":"NOT_DEFINED","Safety":"NOT_DEFINED","attackComplexity":"LOW","attackRequirements":"NONE","attackVector":"NETWORK","baseScore":5.5,"baseSeverity":"MEDIUM","exploitMaturity":"PROOF_OF_CONCEPT","privilegesRequired":"NONE","providerUrgency":"NOT_DEFINED","subAvailabilityImpact":"LOW","subConfidentialityImpact":"NONE","subIntegrityImpact":"NONE","userInteraction":"NONE","valueDensity":"NOT_DEFINED","vectorString":"CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:L/SC:N/SI:N/SA:L/E:P/AU:Y","version":"4.0","vulnAvailabilityImpact":"LOW","vulnConfidentialityImpact":"NONE","vulnIntegrityImpact":"NONE","vulnerabilityResponseEffort":"NOT_DEFINED"},"format":"CVSS","scenarios":[{"lang":"en","value":"GENERAL"}]}],"problemTypes":[{"descriptions":[{"cweId":"CWE-400","description":"CWE-400 Uncontrolled Resource Consumption","lang":"en","type":"CWE"}]}],"providerMetadata":{"shortName":"openjs","orgId":"ce714d77-add3-4f53-aff5-83d477b104bb","dateUpdated":"2025-11-24T18:29:36.725Z"},"credits":[{"lang":"en","type":"finder","value":"Phillip Barta"},{"lang":"en","type":"remediation reviewer","value":"Sebastian Beltran"},{"lang":"en","type":"remediation reviewer","value":"Ulises Gascón"},{"lang":"en","type":"remediation reviewer","value":"Chris de Almeida"},{"lang":"en","type":"remediation reviewer","value":"Jean Burellier"}],"impacts":[{"capecId":"CAPEC-469","descriptions":[{"lang":"en","value":"CAPEC-469 HTTP DoS"}]}],"source":{"advisory":"GHSA-wqch-xfxh-vrr4","discovery":"INTERNAL"},"x_generator":{"engine":"Vulnogram 0.5.0"}},"adp":[{"title":"CISA ADP Vulnrichment","metrics":[{"other":{"type":"ssvc","content":{"timestamp":"2025-11-24T18:56:18.998047Z","id":"CVE-2025-13466","options":[{"Exploitation":"none"},{"Automatable":"yes"},{"Technical Impact":"partial"}],"role":"CISA Coordinator","version":"2.0.3"}}}],"providerMetadata":{"shortName":"CISA-ADP","orgId":"134c704f-9b21-4f2e-91b3-4a467353bcc0","dateUpdated":"2025-11-24T18:57:00.939Z"}}]}}}