{"id":"CVE-2026-31988","aliases":["EUVD-2026-11482","GHSA-gmq8-994r-jv83","ROOT-APP-NPM-CVE-2026-31988","UBUNTU-CVE-2026-31988"],"status":"published","title":"yauzl 3.2.0 - Denial of Service via Off-by-One Error in NTFS Timestamp Parser","description":"yauzl (aka Yet Another Unzip Library) version 3.2.0 for Node.js contains an off-by-one error in the NTFS extended timestamp extra field parser within the getLastModDate() function. The while loop condition checks cursor \u003c data.length + 4 instead of cursor + 4 \u003c= data.length, allowing readUInt16LE() to read past the buffer boundary. A remote attacker can cause a denial of service (process crash via ERR_OUT_OF_RANGE exception) by sending a crafted zip file with a malformed NTFS extra field. This affects any Node.js application that processes zip file uploads and calls entry.getLastModDate() on parsed entries. Fixed in version 3.2.1.","severity":{"version":"4.0","score":6.9,"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:N","level":"medium","assessor":"cna","from":"cve"},"epss":{"day":"2026-11-11","score":0.00568,"percentile":0.47523,"model":"v2026.06.15"},"facts":{"in_kev":false,"known_exploited":false,"public_exploit":false,"fix_available":true},"cwes":["CWE-193"],"published":"2026-03-11T22:58:48Z","modified":"2026-10-28T02:30:59Z","fixes":[{"ecosystem":"npm","package":"yauzl","fixed_in":["3.2.1"],"sources":["ghsa","osv"]},{"ecosystem":"Root:npm","package":"@rootio/yauzl","fixed_in":["3.2.0-root.io.1","3.2.0-root.io.2","3.2.0-root.io.3"],"sources":["osv"]},{"ecosystem":"Root:npm","package":"yauzl","fixed_in":["3.2.0-aikido.3"],"sources":["osv"]}],"affected":[{"source":"ghsa","ecosystem":"npm","package":"yauzl","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"3.2.0"},{"last_affected":"3.2.0"},{"fixed":"3.2.1"}]}],"versions":["3.2.0"]},{"source":"osv","ecosystem":"npm","package":"yauzl","ranges":[{"type":"SEMVER","events":[{"introduced":"3.2.0"},{"fixed":"3.2.1"}]}],"versions":["3.2.0"]},{"source":"osv","ecosystem":"Root:npm","package":"@rootio/yauzl","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"3.2.0-root.io.1"},{"fixed":"3.2.0-root.io.2"},{"fixed":"3.2.0-root.io.3"}]}]},{"source":"osv","ecosystem":"Root:npm","package":"yauzl","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"3.2.0-aikido.3"}]}]},{"source":"osv","ecosystem":"Ubuntu:16.04:LTS","package":"node-yauzl","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["2.1.0-1"]},{"source":"osv","ecosystem":"Ubuntu:18.04:LTS","package":"node-yauzl","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["2.1.0-1","2.1.0-1ubuntu1"]},{"source":"osv","ecosystem":"Ubuntu:20.04:LTS","package":"node-yauzl","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["2.10.0-1","2.10.0-2"]},{"source":"osv","ecosystem":"Ubuntu:22.04:LTS","package":"node-yauzl","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["2.10.0-2","2.10.0-3"]},{"source":"osv","ecosystem":"Ubuntu:24.04:LTS","package":"node-yauzl","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["2.10.0-4"]},{"source":"osv","ecosystem":"Ubuntu:25.10","package":"node-yauzl","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["2.10.0-4"]},{"source":"osv","ecosystem":"Ubuntu:26.10","package":"node-yauzl","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["2.10.0-4"]},{"source":"osv","ecosystem":"Ubuntu:26.04:LTS","package":"node-yauzl","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["2.10.0-4"]}],"products":[{"vendor":"thejoshwolfe","product":"yauzl"}],"references":[{"url":"https://github.com/thejoshwolfe/yauzl/commit/c4695215b05c6adffda613b9051a2a85429b33fe","tags":["patch","fix","web"]},{"url":"https://www.codeant.ai/security-research/yauzl-denial-of-service-zip-file-crash","tags":["third-party-advisory","exploit","advisory","web"]},{"url":"https://www.npmjs.com/package/yauzl","tags":["product","web"]},{"url":"https://www.vulncheck.com/advisories/yauzl-denial-of-service-via-off-by-one-error-in-ntfs-timestamp-parser","tags":["third-party-advisory","advisory","web"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2026-31988","tags":["advisory"]},{"url":"https://github.com/advisories/GHSA-gmq8-994r-jv83"},{"url":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/31xxx/CVE-2026-31988.json","tags":["advisory"]},{"url":"https://github.com/thejoshwolfe/yauzl","tags":["package"]},{"url":"https://ubuntu.com/security/CVE-2026-31988","tags":["report"]},{"url":"https://www.cve.org/CVERecord?id=CVE-2026-31988","tags":["report"]}],"sources":{"cve":[{"id":"CVE-2026-31988","title":"yauzl 3.2.0 - Denial of Service via Off-by-One Error in NTFS Timestamp Parser","description":"yauzl (aka Yet Another Unzip Library) version 3.2.0 for Node.js contains an off-by-one error in the NTFS extended timestamp extra field parser within the getLastModDate() function. The while loop condition checks cursor \u003c data.length + 4 instead of cursor + 4 \u003c= data.length, allowing readUInt16LE() to read past the buffer boundary. A remote attacker can cause a denial of service (process crash via ERR_OUT_OF_RANGE exception) by sending a crafted zip file with a malformed NTFS extra field. This affects any Node.js application that processes zip file uploads and calls entry.getLastModDate() on parsed entries. Fixed in version 3.2.1.","status":"published","published":"2026-03-11T22:58:48.863Z","modified":"2026-03-12T13:40:55.42Z","cvss":[{"version":"4.0","score":6.9,"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:N","level":"medium","assessor":"cna"},{"version":"3.1","score":5.3,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L","level":"medium","assessor":"cna"}],"cwes":["CWE-193"],"updated_at":"2026-11-02T14:19:51.277563Z"}],"euvd":[{"id":"EUVD-2026-11482","description":"yauzl (aka Yet Another Unzip Library) version 3.2.0 for Node.js contains an off-by-one error in the NTFS extended timestamp extra field parser within the getLastModDate() function. The while loop condition checks cursor \u003c data.length + 4 instead of cursor + 4 \u003c= data.length, allowing readUInt16LE() to read past the buffer boundary. A remote attacker can cause a denial of service (process crash via ERR_OUT_OF_RANGE exception) by sending a crafted zip file with a malformed NTFS extra field. This affects any Node.js application that processes zip file uploads and calls entry.getLastModDate() on parsed entries. Fixed in version 3.2.1.","status":"published","published":"2026-03-11T22:58:48Z","modified":"2026-03-12T13:40:55Z","cvss":[{"version":"4.0","score":6.9,"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:N","level":"medium"}],"updated_at":"2026-11-02T19:25:36.272941Z"}],"ghsa":[{"id":"GHSA-gmq8-994r-jv83","title":"yauzl contains an off-by-one error","description":"yauzl (aka Yet Another Unzip Library) version 3.2.0 for Node.js contains an off-by-one error in the NTFS extended timestamp extra field parser within the getLastModDate() function. The while loop condition checks cursor \u003c data.length + 4 instead of cursor + 4 \u003c= data.length, allowing readUInt16LE() to read past the buffer boundary. A remote attacker can cause a denial of service (process crash via ERR_OUT_OF_RANGE exception) by sending a crafted zip file with a malformed NTFS extra field. This affects any Node.js application that processes zip file uploads and calls entry.getLastModDate() on parsed entries. Fixed in version 3.2.1.","status":"published","published":"2026-03-12T00:31:17Z","modified":"2026-03-16T12:35:32Z","cvss":[{"version":"4.0","score":6.9,"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:N","level":"medium"},{"version":"3.1","score":5.3,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L","level":"medium"}],"cwes":["CWE-193"],"updated_at":"2026-11-02T14:39:36.642723Z"}],"nvd":[{"id":"CVE-2026-31988","description":"yauzl (aka Yet Another Unzip Library) version 3.2.0 for Node.js contains an off-by-one error in the NTFS extended timestamp extra field parser within the getLastModDate() function. The while loop condition checks cursor \u003c data.length + 4 instead of cursor + 4 \u003c= data.length, allowing readUInt16LE() to read past the buffer boundary. A remote attacker can cause a denial of service (process crash via ERR_OUT_OF_RANGE exception) by sending a crafted zip file with a malformed NTFS extra field. This affects any Node.js application that processes zip file uploads and calls entry.getLastModDate() on parsed entries. Fixed in version 3.2.1.","status":"published","published":"2026-03-11T23:16:00.53Z","modified":"2026-06-17T10:34:53.13Z","cvss":[{"version":"4.0","score":6.9,"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:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X","level":"medium","assessor":"secondary"},{"version":"3.1","score":5.3,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L","level":"medium","assessor":"secondary"}],"cwes":["CWE-193"],"updated_at":"2026-11-02T14:12:08.98071Z"}],"osv":[{"id":"CVE-2026-31988","title":"yauzl 3.2.0 - Denial of Service via Off-by-One Error in NTFS Timestamp Parser","description":"yauzl (aka Yet Another Unzip Library) version 3.2.0 for Node.js contains an off-by-one error in the NTFS extended timestamp extra field parser within the getLastModDate() function. The while loop condition checks cursor \u003c data.length + 4 instead of cursor + 4 \u003c= data.length, allowing readUInt16LE() to read past the buffer boundary. A remote attacker can cause a denial of service (process crash via ERR_OUT_OF_RANGE exception) by sending a crafted zip file with a malformed NTFS extra field. This affects any Node.js application that processes zip file uploads and calls entry.getLastModDate() on parsed entries. Fixed in version 3.2.1.","status":"published","published":"2026-03-11T22:58:48.863Z","modified":"2026-10-28T02:30:59.647232101Z","cvss":[{"version":"4.0","score":6.9,"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:N","level":"medium"}],"cwes":["CWE-193"],"updated_at":"2026-11-02T15:45:01.218144Z"},{"id":"GHSA-gmq8-994r-jv83","title":"yauzl contains an off-by-one error","description":"yauzl (aka Yet Another Unzip Library) version 3.2.0 for Node.js contains an off-by-one error in the NTFS extended timestamp extra field parser within the getLastModDate() function. The while loop condition checks cursor \u003c data.length + 4 instead of cursor + 4 \u003c= data.length, allowing readUInt16LE() to read past the buffer boundary. A remote attacker can cause a denial of service (process crash via ERR_OUT_OF_RANGE exception) by sending a crafted zip file with a malformed NTFS extra field. This affects any Node.js application that processes zip file uploads and calls entry.getLastModDate() on parsed entries. Fixed in version 3.2.1.","status":"published","published":"2026-03-12T00:31:17Z","modified":"2026-09-10T03:50:39.202483418Z","cvss":[{"version":"3.1","score":5.3,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L","level":"medium"},{"version":"4.0","score":6.9,"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:N","level":"medium"}],"cwes":["CWE-193"],"updated_at":"2026-11-02T15:46:48.191583Z"},{"id":"ROOT-APP-NPM-CVE-2026-31988","title":"CVE-2026-31988 in @rootio/yauzl - Patched by Root","description":"Root has patched CVE-2026-31988 in the @rootio/yauzl package for Root:npm. Multiple fixed versions available.","status":"published","published":"2026-06-04T21:03:41Z","modified":"2026-06-05T01:30:49.107921054Z","cvss":[{"version":"3.1","score":5.3,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L","level":"medium"}],"updated_at":"2026-11-02T15:53:27.649662Z"},{"id":"UBUNTU-CVE-2026-31988","description":"yauzl (aka Yet Another Unzip Library) version 3.2.0 for Node.js contains an off-by-one error in the NTFS extended timestamp extra field parser within the getLastModDate() function. The while loop condition checks cursor \u003c data.length + 4 instead of cursor + 4 \u003c= data.length, allowing readUInt16LE() to read past the buffer boundary. A remote attacker can cause a denial of service (process crash via ERR_OUT_OF_RANGE exception) by sending a crafted zip file with a malformed NTFS extra field. This affects any Node.js application that processes zip file uploads and calls entry.getLastModDate() on parsed entries. Fixed in version 3.2.1.","status":"published","published":"2026-03-11T23:16:00Z","modified":"2026-10-17T12:58:50.882008758Z","cvss":[{"version":"3.1","score":5.3,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L","level":"medium"},{"version":"4.0","score":6.9,"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:N","level":"medium"}],"updated_at":"2026-11-02T16:56:16.036833Z"}]}}