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libmspack through 0.11alpha Uninitialized Pointer Free via kwajd_open Error Path

Type: advisorySource: Official CVE List1 source record

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.

Announced Source revision 1
Original source ↗

CVE-2026-110602

Primary source · Revision 1

Imported from structured advisory data. Source references identify upstream records or fields; verify affected versions and your deployed configuration.

Security context

Source reference: cve:CVE-2026-110602

libmspack

Source reference: /containers/cna/affected/0/product

Affected versions
Not stated in this record
Fixed versions
Not stated in this record
Prerequisites
Not stated in this record

Structured affected-version data

Original package identities and version rules from this source.

[
  {
    "repo": "https://github.com/kyz/libmspack",
    "vendor": "kyz",
    "product": "libmspack",
    "versions": [
      {
        "status": "affected",
        "version": "0",
        "versionType": "custom",
        "lessThanOrEqual": "0.11alpha"
      }
    ],
    "packageURL": "pkg:github/kyz/libmspack",
    "collectionURL": "https://github.com",
    "defaultStatus": "unaffected"
  }
]
Related CVEs
CVE-2026-110602

Source reference: /cveMetadata/cveId

Publisher severity

medium

Source reference: /containers/cna/metrics

Event
#22909 · Revision 1
Added to Heist Feed
Publisher date
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