{
  "affected": [
    {
      "ranges": [
        {
          "database_specific": {
            "extracted_events": [
              {
                "introduced": "0"
              },
              {
                "fixed": "0.11alpha"
              }
            ],
            "source": [
              "DESCRIPTION",
              "REFERENCES"
            ]
          },
          "events": [
            {
              "introduced": "0"
            },
            {
              "fixed": "370d41b64230907f7ca16586bcc1cd93304718f9"
            },
            {
              "fixed": "4d868504114346aa767d435fbb89a8b76603493f"
            }
          ],
          "repo": "https://github.com/kyz/libmspack",
          "type": "GIT"
        }
      ]
    }
  ],
  "database_specific": {
    "cna_assigner": "VulnCheck",
    "cwe_ids": [
      "CWE-824"
    ],
    "osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/110xxx/CVE-2026-110602.json"
  },
  "details": "libmspack through 0.11alpha contains an uninitialized pointer free vulnerability in kwajd_open() in mspack/kwajd.c that frees unzeroed filename and extra pointers on header read errors. Attackers can supply a truncated, empty, or wrong-signature KWAJ file to crash the process or obtain an arbitrary-free memory corruption primitive.",
  "id": "CVE-2026-110602",
  "modified": "2026-10-16T02:30:30.607977277Z",
  "published": "2026-10-14T14:16:43.661Z",
  "references": [
    {
      "type": "WEB",
      "url": "https://github.com"
    },
    {
      "type": "ADVISORY",
      "url": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/110xxx/CVE-2026-110602.json"
    },
    {
      "type": "ADVISORY",
      "url": "https://hackmd.io/@haind-pwn/libmspack-kwaj-uninitialized-free"
    },
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-110602"
    },
    {
      "type": "ADVISORY",
      "url": "https://www.vulncheck.com/advisories/libmspack-through-0-11alpha-uninitialized-pointer-free-via-kwajd-open-error-path"
    },
    {
      "type": "FIX",
      "url": "https://github.com/kyz/libmspack/commit/4d868504114346aa767d435fbb89a8b76603493f"
    },
    {
      "type": "PACKAGE",
      "url": "https://github.com/kyz/libmspack"
    },
    {
      "type": "ARTICLE",
      "url": "https://github.com/kyz/libmspack/blob/v0.11alpha/libmspack/mspack/kwajd.c#L111-L181"
    }
  ],
  "schema_version": "1.9.0",
  "severity": [
    {
      "score": "CVSS:4.0/AV:L/AC:L/AT:P/PR:N/UI:P/VC:N/VI:H/VA:H/SC:N/SI:N/SA:N",
      "type": "CVSS_V4"
    }
  ],
  "summary": "libmspack through 0.11alpha Uninitialized Pointer Free via kwajd_open Error Path"
}