{"id":"CVE-2025-48997","state":"PUBLISHED","title":"Multer vulnerable to Denial of Service via unhandled exception","description":"Multer is a node.js middleware for handling `multipart/form-data`. A vulnerability that is present starting in version 1.4.4-lts.1 and prior to version 2.0.1 allows an attacker to trigger a Denial of Service (DoS) by sending an upload file request with an empty string field name. This request causes an unhandled exception, leading to a crash of the process. Users should upgrade to `2.0.1` to receive a patch. No known workarounds are available.","publishedAt":"2025-06-03T18:21:59.527Z","updatedAt":"2025-06-03T18:30:13.178Z","severity":{"score":8.7,"label":"High","version":"4.0","vector":"CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N","source":"GitHub_M"},"assigner":"GitHub_M","products":["expressjs multer"],"affected":[{"vendor":"expressjs","product":"multer","versions":[{"version":">= 1.4.4-lts.1, < 2.0.1","status":"affected"}]}],"references":["https://github.com/expressjs/multer/security/advisories/GHSA-g5hg-p3ph-g8qg","https://github.com/expressjs/multer/issues/1233","https://github.com/expressjs/multer/pull/1256","https://github.com/expressjs/multer/commit/35a3272b611945155e046dd5cef11088587635e9"],"weaknesses":["CWE-248"],"ingestedAt":"2026-10-29T20:09:23.771Z","source":{"repository":"CVEProject/cvelistV5","path":"cves/2025/48xxx/CVE-2025-48997.json","commit":"556c9d3a8cd17e218bb8e452ba7cd619a384ff47"},"raw":{"dataType":"CVE_RECORD","dataVersion":"5.1","cveMetadata":{"cveId":"CVE-2025-48997","state":"PUBLISHED","datePublished":"2025-06-03T18:21:59.527Z","dateUpdated":"2025-06-03T18:30:13.178Z","assignerShortName":"GitHub_M","assignerOrgId":"a0819718-46f1-4df5-94e2-005712e83aaa","dateReserved":"2025-05-29T16:34:07.174Z"},"containers":{"cna":{"title":"Multer vulnerable to Denial of Service via unhandled exception","descriptions":[{"lang":"en","value":"Multer is a node.js middleware for handling `multipart/form-data`. A vulnerability that is present starting in version 1.4.4-lts.1 and prior to version 2.0.1 allows an attacker to trigger a Denial of Service (DoS) by sending an upload file request with an empty string field name. This request causes an unhandled exception, leading to a crash of the process. Users should upgrade to `2.0.1` to receive a patch. No known workarounds are available."}],"affected":[{"vendor":"expressjs","product":"multer","versions":[{"version":">= 1.4.4-lts.1, < 2.0.1","status":"affected"}]}],"references":[{"url":"https://github.com/expressjs/multer/security/advisories/GHSA-g5hg-p3ph-g8qg","name":"https://github.com/expressjs/multer/security/advisories/GHSA-g5hg-p3ph-g8qg","tags":["x_refsource_CONFIRM"]},{"url":"https://github.com/expressjs/multer/issues/1233","name":"https://github.com/expressjs/multer/issues/1233","tags":["x_refsource_MISC"]},{"url":"https://github.com/expressjs/multer/pull/1256","name":"https://github.com/expressjs/multer/pull/1256","tags":["x_refsource_MISC"]},{"url":"https://github.com/expressjs/multer/commit/35a3272b611945155e046dd5cef11088587635e9","name":"https://github.com/expressjs/multer/commit/35a3272b611945155e046dd5cef11088587635e9","tags":["x_refsource_MISC"]}],"metrics":[{"cvssV4_0":{"attackVector":"NETWORK","attackComplexity":"LOW","attackRequirements":"NONE","privilegesRequired":"NONE","userInteraction":"NONE","vulnConfidentialityImpact":"NONE","vulnIntegrityImpact":"NONE","vulnAvailabilityImpact":"HIGH","subConfidentialityImpact":"NONE","subIntegrityImpact":"NONE","subAvailabilityImpact":"NONE","baseScore":8.7,"baseSeverity":"HIGH","vectorString":"CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N","version":"4.0"}}],"problemTypes":[{"descriptions":[{"cweId":"CWE-248","lang":"en","description":"CWE-248: Uncaught Exception","type":"CWE"}]}],"providerMetadata":{"shortName":"GitHub_M","orgId":"a0819718-46f1-4df5-94e2-005712e83aaa","dateUpdated":"2025-06-03T18:21:59.527Z"},"source":{"advisory":"GHSA-g5hg-p3ph-g8qg","discovery":"UNKNOWN"}},"adp":[{"title":"CISA ADP Vulnrichment","metrics":[{"other":{"type":"ssvc","content":{"timestamp":"2025-06-03T18:29:57.580368Z","id":"CVE-2025-48997","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":"2025-06-03T18:30:13.178Z"}}]}}}