CVE-2026-48961 (GCVE-0-2026-48961)
Vulnerability from cvelistv5
Published
2026-05-27 02:34
Modified
2026-05-29 15:52
CWE
  • CWE-755 - Improper Handling of Exceptional Conditions
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.
Impacted products
Vendor Product Version
PMQS IO::Compress Version: 2.207   < 2.220
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Show details on NVD website


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          "dateUpdated": "2026-05-27T07:24:57.566Z",
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        "references": [
          {
            "url": "http://www.openwall.com/lists/oss-security/2026/05/27/3"
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        "metrics": [
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              "attackComplexity": "LOW",
              "attackVector": "NETWORK",
              "availabilityImpact": "LOW",
              "baseScore": 7.3,
              "baseSeverity": "HIGH",
              "confidentialityImpact": "LOW",
              "integrityImpact": "LOW",
              "privilegesRequired": "NONE",
              "scope": "UNCHANGED",
              "userInteraction": "NONE",
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                "timestamp": "2026-05-29T15:51:41.495552Z",
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          "orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
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          "lang": "en",
          "value": "Upgrade to IO-Compress 2.220 or later."
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      "source": {
        "discovery": "UNKNOWN"
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          "lang": "en",
          "time": "2026-05-14T00:00:00.000Z",
          "value": "Issue reported."
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        {
          "lang": "en",
          "time": "2026-05-16T00:00:00.000Z",
          "value": "Version 2.220 released."
        }
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      "title": "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",
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    "datePublished": "2026-05-27T02:34:52.228Z",
    "dateReserved": "2026-05-26T18:09:32.365Z",
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    "state": "PUBLISHED"
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