FKIE_CVE-2026-48961

Vulnerability from fkie_nvd - Published: 2026-05-27 04:16 - Updated: 2026-05-27 19:38
Severity
Summary
IO::Compress versions from 2.207 before 2.220 for Perl ship a zipdetails CLI tool that crashes with undefined subroutine on Info-ZIP Unix Extra Field with 8-byte UID or GID. When decode_ux() in bin/zipdetails handles an Info-ZIP Unix Extra Field (tag 0x7875) with UID Size or GID Size set to 8, causing zipdetails to decode an 8-byte UID or GID value, it dispatches through decodeLitteEndian(), which calls a misnamed helper unpackValueQ. The actual function defined in the same file is unpackValue_Q (with underscore); the call raises 'Undefined subroutine &main::unpackValueQ' and the script exits with status 255. Library callers of IO::Compress and IO::Uncompress are not affected; the defect is in the bundled CLI tool.
References
9b29abf9-4ab0-4765-b253-1875cd9b441ehttps://github.com/pmqs/IO-Compress/commit/33c89d03d6e746ed2ead4f2f6570d47864c61bc7.patch
9b29abf9-4ab0-4765-b253-1875cd9b441ehttps://metacpan.org/release/PMQS/IO-Compress-2.220/changes
af854a3a-2127-422b-91ae-364da2661108http://www.openwall.com/lists/oss-security/2026/05/27/3
Impacted products
Vendor Product Version
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{
  "cveTags": [],
  "descriptions": [
    {
      "lang": "en",
      "value": "IO::Compress versions from 2.207 before 2.220 for Perl ship a zipdetails CLI tool that crashes with undefined subroutine on Info-ZIP Unix Extra Field with 8-byte UID or GID.\n\nWhen decode_ux() in bin/zipdetails handles an Info-ZIP Unix Extra Field (tag 0x7875) with UID Size or GID Size set to 8, causing zipdetails to decode an 8-byte UID or GID value, it dispatches through decodeLitteEndian(), which calls a misnamed helper unpackValueQ. The actual function defined in the same file is unpackValue_Q (with underscore); the call raises \u0027Undefined subroutine \u0026main::unpackValueQ\u0027 and the script exits with status 255.\n\nLibrary callers of IO::Compress and IO::Uncompress are not affected; the defect is in the bundled CLI tool."
    }
  ],
  "id": "CVE-2026-48961",
  "lastModified": "2026-05-27T19:38:33.270",
  "metrics": {},
  "published": "2026-05-27T04:16:31.210",
  "references": [
    {
      "source": "9b29abf9-4ab0-4765-b253-1875cd9b441e",
      "url": "https://github.com/pmqs/IO-Compress/commit/33c89d03d6e746ed2ead4f2f6570d47864c61bc7.patch"
    },
    {
      "source": "9b29abf9-4ab0-4765-b253-1875cd9b441e",
      "url": "https://metacpan.org/release/PMQS/IO-Compress-2.220/changes"
    },
    {
      "source": "af854a3a-2127-422b-91ae-364da2661108",
      "url": "http://www.openwall.com/lists/oss-security/2026/05/27/3"
    }
  ],
  "sourceIdentifier": "9b29abf9-4ab0-4765-b253-1875cd9b441e",
  "vulnStatus": "Deferred",
  "weaknesses": [
    {
      "description": [
        {
          "lang": "en",
          "value": "CWE-755"
        }
      ],
      "source": "9b29abf9-4ab0-4765-b253-1875cd9b441e",
      "type": "Secondary"
    }
  ]
}


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