{"id":"CVE-2025-7338","aliases":["CLSA-2026-1773879511","CLSA-2026-1786358483","EUVD-2025-21776","GHSA-fjgf-rc76-4x9p","ROOT-APP-NPM-CVE-2025-7338"],"status":"published","title":"Multer vulnerable to Denial of Service via unhandled exception from malformed request","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 2.0.2 allows an attacker to trigger a Denial of Service (DoS) by sending a malformed multi-part upload request. This request causes an unhandled exception, leading to a crash of the process. Users should upgrade to version 2.0.2 to receive a patch. No known workarounds are available.","severity":{"version":"3.1","score":7.5,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H","level":"high","assessor":"cna","from":"cve"},"epss":{"day":"2026-11-09","score":0.00808,"percentile":0.57114,"model":"v2026.06.15"},"facts":{"in_kev":false,"known_exploited":false,"public_exploit":true,"fix_available":true},"cwes":["CWE-248"],"published":"2025-07-17T15:26:45Z","modified":"2026-10-29T19:15:03Z","exploits":[{"source":"pocgithub","id":"r2c-CSE/multer-sca-rule-test_cve-2025-7338","title":"r2c-CSE/multer-sca-rule-test_cve-2025-7338","date":"2025-12-04","url":"https://github.com/r2c-CSE/multer-sca-rule-test_cve-2025-7338"}],"fixes":[{"ecosystem":"npm","package":"multer","fixed_in":["2.0.2"],"sources":["ghsa","osv"]},{"ecosystem":"TuxCare:npm","package":"multer","fixed_in":["1.4.5-lts.1-tuxcare.3"],"sources":["osv"]},{"ecosystem":"Root:npm","package":"multer","fixed_in":["1.4.4-lts.1-aikido.3","1.4.5-lts.2-aikido.9","1.4.5-lts.2-aikido.5","1.4.4-lts.1-aikido.4","1.4.5-lts.1-aikido.2","1.4.5-lts.1-aikido.3","1.4.4-aikido.3","1.4.4-aikido.4","1.4.5-lts.1-aikido.1","1.4.4-lts.1-aikido.2","1.4.4-aikido.5","1.4.5-lts.2-aikido.6","1.4.4-aikido.6","1.4.5-lts.2-aikido.7","1.4.5-lts.2-aikido.8","2.0.2-aikido.4","2.0.2-aikido.5","2.0.2-aikido.6","2.0.2-aikido.7"],"sources":["osv"]},{"ecosystem":"Root:npm","package":"@rootio/multer","fixed_in":["1.4.4-lts.1-root.io.3","1.4.5-lts.2-root.io.2","1.4.5-lts.2-root.io.3","1.4.5-lts.2-root.io.4","1.4.5-lts.2-root.io.9","1.4.5-lts.2-root.io.5","1.4.4-lts.1-root.io.4","1.4.5-lts.1-root.io.2","1.4.5-lts.1-root.io.3","1.4.4-root.io.3","1.4.4-root.io.4","1.4.5-lts.1-root.io.1","1.4.4-lts.1-root.io.2","1.4.4-root.io.5","1.4.5-lts.2-root.io.6","1.4.4-root.io.6","1.4.5-lts.2-root.io.7","1.4.5-lts.2-root.io.8","2.0.2-root.io.1","2.0.2-root.io.2","2.0.2-root.io.3","2.0.2-root.io.4","2.0.2-root.io.5","2.0.2-root.io.6","2.0.2-root.io.7"],"sources":["osv"]}],"affected":[{"source":"ghsa","ecosystem":"npm","package":"multer","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"1.4.4-lts.1"},{"fixed":"2.0.2"}]}]},{"source":"osv","ecosystem":"TuxCare:npm","package":"multer","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"1.4.5-lts.1-tuxcare.0"},{"fixed":"1.4.5-lts.1-tuxcare.3"}]}],"versions":["1.4.5-lts.1","1.4.5-lts.1-tuxcare.1","1.4.5-lts.1-tuxcare.2"]},{"source":"osv","ecosystem":"TuxCare:npm","package":"multer","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"1.4.5-lts.2-tuxcare.0"},{"fixed":"1.4.5-lts.2-tuxcare.4"}]}],"versions":["1.4.5-lts.2","1.4.5-lts.2-tuxcare.1","1.4.5-lts.2-tuxcare.2","1.4.5-lts.2-tuxcare.3"],"bundled":2},{"source":"osv","ecosystem":"npm","package":"multer","ranges":[{"type":"SEMVER","events":[{"introduced":"1.4.4-lts.1"},{"fixed":"2.0.2"}]}]},{"source":"osv","ecosystem":"Root:npm","package":"multer","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"1.4.4-lts.1-aikido.3"},{"fixed":"1.4.5-lts.2-aikido.9"},{"fixed":"1.4.5-lts.2-aikido.5"},{"fixed":"1.4.4-lts.1-aikido.4"},{"fixed":"1.4.5-lts.1-aikido.2"},{"fixed":"1.4.5-lts.1-aikido.3"},{"fixed":"1.4.4-aikido.3"},{"fixed":"1.4.4-aikido.4"},{"fixed":"1.4.5-lts.1-aikido.1"},{"fixed":"1.4.4-lts.1-aikido.2"},{"fixed":"1.4.4-aikido.5"},{"fixed":"1.4.5-lts.2-aikido.6"},{"fixed":"1.4.4-aikido.6"},{"fixed":"1.4.5-lts.2-aikido.7"},{"fixed":"1.4.5-lts.2-aikido.8"},{"fixed":"2.0.2-aikido.4"},{"fixed":"2.0.2-aikido.5"},{"fixed":"2.0.2-aikido.6"},{"fixed":"2.0.2-aikido.7"}]}]},{"source":"osv","ecosystem":"Root:npm","package":"@rootio/multer","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"1.4.4-lts.1-root.io.3"},{"fixed":"1.4.5-lts.2-root.io.2"},{"fixed":"1.4.5-lts.2-root.io.3"},{"fixed":"1.4.5-lts.2-root.io.4"},{"fixed":"1.4.5-lts.2-root.io.9"},{"fixed":"1.4.5-lts.2-root.io.5"},{"fixed":"1.4.4-lts.1-root.io.4"},{"fixed":"1.4.5-lts.1-root.io.2"},{"fixed":"1.4.5-lts.1-root.io.3"},{"fixed":"1.4.4-root.io.3"},{"fixed":"1.4.4-root.io.4"},{"fixed":"1.4.5-lts.1-root.io.1"},{"fixed":"1.4.4-lts.1-root.io.2"},{"fixed":"1.4.4-root.io.5"},{"fixed":"1.4.5-lts.2-root.io.6"},{"fixed":"1.4.4-root.io.6"},{"fixed":"1.4.5-lts.2-root.io.7"},{"fixed":"1.4.5-lts.2-root.io.8"},{"fixed":"2.0.2-root.io.1"},{"fixed":"2.0.2-root.io.2"},{"fixed":"2.0.2-root.io.3"},{"fixed":"2.0.2-root.io.4"},{"fixed":"2.0.2-root.io.5"},{"fixed":"2.0.2-root.io.6"},{"fixed":"2.0.2-root.io.7"}]}]}],"products":[{"vendor":"expressjs","product":"multer"}],"references":[{"url":"https://github.com/expressjs/multer/security/advisories/GHSA-fjgf-rc76-4x9p","tags":["advisory","web"]},{"url":"https://github.com/expressjs/multer/commit/adfeaf669f0e7fe953eab191a762164a452d143b","tags":["fix","web"]},{"url":"https://cna.openjsf.org/security-advisories.html","tags":["advisory","web"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2025-7338","tags":["advisory"]},{"url":"https://github.com/advisories/GHSA-fjgf-rc76-4x9p"},{"url":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2025/7xxx/CVE-2025-7338.json","tags":["advisory"]},{"url":"https://github.com/expressjs/multer","tags":["package"]}],"sources":{"cve":[{"id":"CVE-2025-7338","title":"Multer vulnerable to Denial of Service via unhandled exception from malformed request","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 2.0.2 allows an attacker to trigger a Denial of Service (DoS) by sending a malformed multi-part upload request. This request causes an unhandled exception, leading to a crash of the process. Users should upgrade to version 2.0.2 to receive a patch. No known workarounds are available.","status":"published","published":"2025-07-17T15:26:45.427Z","modified":"2025-07-17T16:48:43.154Z","cvss":[{"version":"3.1","score":7.5,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H","level":"high","assessor":"cna"}],"cwes":["CWE-248"],"updated_at":"2026-11-02T14:32:51.880027Z"}],"euvd":[{"id":"EUVD-2025-21776","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 2.0.2 allows an attacker to trigger a Denial of Service (DoS) by sending a malformed multi-part upload request. This request causes an unhandled exception, leading to a crash of the process. Users should upgrade to version 2.0.2 to receive a patch. No known workarounds are available.","status":"published","published":"2025-07-17T15:26:45Z","modified":"2025-07-17T16:48:43Z","cvss":[{"version":"3.1","score":7.5,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H","level":"high"}],"updated_at":"2026-11-02T20:32:07.433642Z"}],"ghsa":[{"id":"GHSA-fjgf-rc76-4x9p","title":"Multer vulnerable to Denial of Service via unhandled exception from malformed request","description":"### Impact\n\nA vulnerability in Multer versions \u003e= 1.4.4-lts.1, \u003c 2.0.2 allows an attacker to trigger a Denial of Service (DoS) by sending a malformed request. This request causes an unhandled exception, leading to a crash of the process.\n\n### Patches\n\nUsers should upgrade to `2.0.2`\n\n### Workarounds\n\nNone","status":"published","published":"2025-07-17T21:01:54Z","modified":"2025-07-17T21:01:55Z","cvss":[{"version":"3.1","score":7.5,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H","level":"high"}],"cwes":["CWE-248"],"updated_at":"2026-11-02T14:38:50.834587Z"}],"nvd":[{"id":"CVE-2025-7338","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 2.0.2 allows an attacker to trigger a Denial of Service (DoS) by sending a malformed multi-part upload request. This request causes an unhandled exception, leading to a crash of the process. Users should upgrade to version 2.0.2 to receive a patch. No known workarounds are available.","status":"published","published":"2025-07-17T16:15:35.227Z","modified":"2026-06-17T10:04:45.08Z","cvss":[{"version":"3.1","score":7.5,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H","level":"high","assessor":"secondary"}],"cwes":["CWE-248"],"updated_at":"2026-11-02T14:11:18.782156Z"}],"osv":[{"id":"CVE-2025-7338","title":"Multer vulnerable to Denial of Service via unhandled exception from malformed request","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 2.0.2 allows an attacker to trigger a Denial of Service (DoS) by sending a malformed multi-part upload request. This request causes an unhandled exception, leading to a crash of the process. Users should upgrade to version 2.0.2 to receive a patch. No known workarounds are available.","status":"published","published":"2025-07-17T15:26:45.427Z","modified":"2026-10-28T02:30:31.915176779Z","cvss":[{"version":"3.1","score":7.5,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H","level":"high"}],"cwes":["CWE-248"],"updated_at":"2026-11-02T15:44:53.185592Z"},{"id":"GHSA-fjgf-rc76-4x9p","title":"Multer vulnerable to Denial of Service via unhandled exception from malformed request","description":"### Impact\n\nA vulnerability in Multer versions \u003e= 1.4.4-lts.1, \u003c 2.0.2 allows an attacker to trigger a Denial of Service (DoS) by sending a malformed request. This request causes an unhandled exception, leading to a crash of the process.\n\n### Patches\n\nUsers should upgrade to `2.0.2`\n\n### Workarounds\n\nNone","status":"published","published":"2025-07-17T21:01:54Z","modified":"2025-07-17T21:44:33.348037Z","cvss":[{"version":"3.1","score":7.5,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H","level":"high"}],"cwes":["CWE-248"],"updated_at":"2026-11-02T15:46:46.39441Z"},{"id":"CLSA-2026-1773879511","title":"TuxCare security update for multer (1 CVE)","description":"TuxCare rebuilt multer to address 1 CVE. Fixed in 1.4.5-lts.1-tuxcare.3.","status":"published","published":"2026-08-04T14:52:13Z","modified":"2026-10-15T09:47:47.154366251Z","updated_at":"2026-11-02T15:43:43.621843Z"},{"id":"CLSA-2026-1786358483","title":"TuxCare security update for multer (2 CVEs)","description":"TuxCare rebuilt multer to address 2 CVEs. Fixed in 1.4.5-lts.2-tuxcare.4.","status":"published","published":"2026-08-10T10:41:23Z","modified":"2026-10-15T09:45:59.745336293Z","updated_at":"2026-11-02T15:43:46.850893Z"},{"id":"ROOT-APP-NPM-CVE-2025-7338","title":"CVE-2025-7338 in multer - Patched by Root","description":"Root has patched CVE-2025-7338 in the multer package for Root:npm. Multiple fixed versions available.","status":"published","published":"2026-10-29T18:47:25Z","modified":"2026-10-29T19:15:03.165673657Z","updated_at":"2026-11-02T15:53:27.362922Z"}]}}