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DEBIAN-CVE-2026-48961

Type: advisorySource: OSV1 source record

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.

Announced Source revision 1
Original source ↗

DEBIAN-CVE-2026-48961

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: osv:DEBIAN-CVE-2026-48961

libio-compress-perl

Source reference: /affected/0/package/name

Affected versions
2.213-1

Source reference: /affected/0/versions

Fixed versions
2.213-1+deb13u1

Source reference: /affected/0/ranges

Prerequisites
Not stated in this record

libio-compress-perl

Source reference: /affected/1/package/name

Affected versions
2.213-1

Source reference: /affected/1/versions

2.214-1

Source reference: /affected/1/versions

2.217-1

Source reference: /affected/1/versions

2.219-1

Source reference: /affected/1/versions

2.219-2

Source reference: /affected/1/versions

Fixed versions
2.220-1

Source reference: /affected/1/ranges

Prerequisites
Not stated in this record

perl

Source reference: /affected/2/package/name

Affected versions
5.40.1-6

Source reference: /affected/2/versions

Fixed versions
5.40.1-6+deb13u1

Source reference: /affected/2/ranges

Prerequisites
Not stated in this record

perl

Source reference: /affected/3/package/name

Affected versions
5.40.1-6

Source reference: /affected/3/versions

5.40.1-7

Source reference: /affected/3/versions

Fixed versions
5.40.1-8

Source reference: /affected/3/ranges

Prerequisites
Not stated in this record

Structured affected-version data

Original package identities and version rules from this source.

[
  {
    "ranges": [
      {
        "type": "ECOSYSTEM",
        "events": [
          {
            "introduced": "0"
          },
          {
            "fixed": "2.213-1+deb13u1"
          }
        ]
      }
    ],
    "package": {
      "name": "libio-compress-perl",
      "purl": "pkg:deb/debian/libio-compress-perl?arch=source&distro=trixie",
      "ecosystem": "Debian:13"
    },
    "versions": [
      "2.213-1"
    ],
    "database_specific": {
      "source": "https://storage.googleapis.com/debian-osv/debian-cve-osv/DEBIAN-CVE-2026-48961.json"
    },
    "ecosystem_specific": {
      "urgency": "not yet assigned"
    }
  },
  {
    "ranges": [
      {
        "type": "ECOSYSTEM",
        "events": [
          {
            "introduced": "0"
          },
          {
            "fixed": "2.220-1"
          }
        ]
      }
    ],
    "package": {
      "name": "libio-compress-perl",
      "purl": "pkg:deb/debian/libio-compress-perl?arch=source&distro=forky",
      "ecosystem": "Debian:14"
    },
    "versions": [
      "2.213-1",
      "2.214-1",
      "2.217-1",
      "2.219-1",
      "2.219-2"
    ],
    "database_specific": {
      "source": "https://storage.googleapis.com/debian-osv/debian-cve-osv/DEBIAN-CVE-2026-48961.json"
    },
    "ecosystem_specific": {
      "urgency": "not yet assigned"
    }
  },
  {
    "ranges": [
      {
        "type": "ECOSYSTEM",
        "events": [
          {
            "introduced": "0"
          },
          {
            "fixed": "5.40.1-6+deb13u1"
          }
        ]
      }
    ],
    "package": {
      "name": "perl",
      "purl": "pkg:deb/debian/perl?arch=source&distro=trixie",
      "ecosystem": "Debian:13"
    },
    "versions": [
      "5.40.1-6"
    ],
    "database_specific": {
      "source": "https://storage.googleapis.com/debian-osv/debian-cve-osv/DEBIAN-CVE-2026-48961.json"
    },
    "ecosystem_specific": {
      "urgency": "not yet assigned"
    }
  },
  {
    "ranges": [
      {
        "type": "ECOSYSTEM",
        "events": [
          {
            "introduced": "0"
          },
          {
            "fixed": "5.40.1-8"
          }
        ]
      }
    ],
    "package": {
      "name": "perl",
      "purl": "pkg:deb/debian/perl?arch=source&distro=forky",
      "ecosystem": "Debian:14"
    },
    "versions": [
      "5.40.1-6",
      "5.40.1-7"
    ],
    "database_specific": {
      "source": "https://storage.googleapis.com/debian-osv/debian-cve-osv/DEBIAN-CVE-2026-48961.json"
    },
    "ecosystem_specific": {
      "urgency": "not yet assigned"
    }
  }
]

Publisher severity

No explicit severity was provided.

Event
#57752 · Revision 1
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Publisher date
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