CVE-2026-31988

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Source
https://cve.org/CVERecord?id=CVE-2026-31988
Import Source
https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-31988.json
JSON Data
https://api.osv.dev/v1/vulns/CVE-2026-31988
Aliases
Downstream
Related
Published
2026-03-11T22:58:48.863Z
Modified
2026-08-12T03:51:39.504372332Z
Severity
  • 6.9 (Medium) CVSS_V4 - 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 CVSS Calculator
Summary
yauzl 3.2.0 - Denial of Service via Off-by-One Error in NTFS Timestamp Parser
Details

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 ERROUTOF_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.

Database specific 
{
    "osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/31xxx/CVE-2026-31988.json",
    "cwe_ids": [
        "CWE-193"
    ],
    "cna_assigner": "VulnCheck"
}
References

Affected packages

Git / github.com/thejoshwolfe/yauzl

Affected ranges

Type
GIT
Repo
https://github.com/thejoshwolfe/yauzl
Events
Introduced
6eb82421a7e0ac74825bfb80ee473b8e0ae64276
Fixed
c4695215b05c6adffda613b9051a2a85429b33fe
Database specific
Show details 
{
    "source": [
        "AFFECTED_FIELD",
        "REFERENCES"
    ],
    "extracted_events": [
        {
            "introduced": "3.2.0"
        },
        {
            "fixed": "3.2.1"
        }
    ]
}

Affected versions

3.*
3.2.0

Database specific

source 
"https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-31988.json"