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CVE-2026-31988

MEDIUM

5.3

Beschreibung

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 < data.length + 4 instead of cursor + 4 <= 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.

CVE Details

CVSS v3.1 Bewertung5.3

SchweregradMEDIUM

CVSS VektorCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L

AngriffsvektorNETWORK

KomplexitatLOW

Erforderliche PrivilegienNONE

BenutzerinteraktionNONE

Veroffentlicht3/11/2026

Zuletzt geandert3/12/2026

Quellenvd

Honeypot-Sichtungen0

Schwachen (CWE)

CWE-193

Referenzen

https://github.com/thejoshwolfe/yauzl/commit/c4695215b05c6adffda613b9051a2a85429b33fe(disclosure@vulncheck.com)

https://www.codeant.ai/security-research/yauzl-denial-of-service-zip-file-crash(disclosure@vulncheck.com)

https://www.npmjs.com/package/yauzl(disclosure@vulncheck.com)

https://www.vulncheck.com/advisories/yauzl-denial-of-service-via-off-by-one-error-in-ntfs-timestamp-parser(disclosure@vulncheck.com)

https://www.codeant.ai/security-research/yauzl-denial-of-service-zip-file-crash(134c704f-9b21-4f2e-91b3-4a467353bcc0)

IOC Korrelationen

Keine Korrelationen erfasst

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