UBUNTU-CVE-2026-48959

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Source

https://ubuntu.com/security/CVE-2026-48959

Import Source

https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-48959.json

JSON Data

https://api.test.osv.dev/v1/vulns/UBUNTU-CVE-2026-48959

Upstream

CVE-2026-48959

Published

2026-05-27T04:16:00Z

Modified

2026-06-01T07:15:30.695291043Z

Severity

7.5 (High) CVSS_V3 - CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H CVSS Calculator
Ubuntu - medium

Summary

[none]

Details

IO::Uncompress::Unzip versions before 2.220 for Perl allow CPU exhaustion via per-byte read loop in fastForward. fastForward() compares length $offset (the digit count of the offset, 1 to 19) against the chunk size $c instead of $offset itself, so $c shrinks from 16 KiB to 1-19 bytes per iteration. Extracting a named entry from an attacker supplied zip via IO::Uncompress::Unzip->new($zip, Name => $target) drives a per-byte read loop scaling with the entry's compressed size, up to the non-Zip64 4 GiB cap.

References

Affected packages

Ubuntu:16.04:LTS

libio-compress-perl

Package

Name: libio-compress-perl
Purl: pkg:deb/ubuntu/libio-compress-perl?arch=source&distro=xenial

Affected ranges

Type: ECOSYSTEM
Events: Introduced

0Unknown introduced version / All previous versions are affected

Affected versions

2.*

2.068-2

2.069-1

Ecosystem specific

{
    "binaries": [
        {
            "binary_name": "libio-compress-perl",
            "binary_version": "2.069-1"
        }
    ]
}

Database specific

source

"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-48959.json"

Ubuntu:18.04:LTS

perl

Package

Name: perl
Purl: pkg:deb/ubuntu/perl?arch=source&distro=bionic

Affected ranges

Type: ECOSYSTEM
Events: Introduced

0Unknown introduced version / All previous versions are affected

Affected versions

5.*

5.26.0-8ubuntu1

5.26.1-2ubuntu1

5.26.1-3

5.26.1-4

5.26.1-4build1

5.26.1-5

5.26.1-6

5.26.1-6ubuntu0.1

5.26.1-6ubuntu0.2

5.26.1-6ubuntu0.3

5.26.1-6ubuntu0.5

5.26.1-6ubuntu0.6

5.26.1-6ubuntu0.7

Ecosystem specific

{
    "binaries": [
        {
            "binary_name": "libperl5.26",
            "binary_version": "5.26.1-6ubuntu0.7"
        },
        {
            "binary_version": "5.26.1-6ubuntu0.7",
            "binary_name": "perl"
        },
        {
            "binary_name": "perl-base",
            "binary_version": "5.26.1-6ubuntu0.7"
        },
        {
            "binary_name": "perl-debug",
            "binary_version": "5.26.1-6ubuntu0.7"
        },
        {
            "binary_name": "perl-modules-5.26",
            "binary_version": "5.26.1-6ubuntu0.7"
        }
    ]
}

Database specific

source

"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-48959.json"

libio-compress-perl

Package

Name: libio-compress-perl
Purl: pkg:deb/ubuntu/libio-compress-perl?arch=source&distro=bionic

Affected ranges

Type: ECOSYSTEM
Events: Introduced

0Unknown introduced version / All previous versions are affected

Affected versions

2.*

2.074-1

Ecosystem specific

{
    "binaries": [
        {
            "binary_version": "2.074-1",
            "binary_name": "libio-compress-perl"
        }
    ]
}

Database specific

source

"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-48959.json"

Ubuntu:20.04:LTS

perl

Package

Name: perl
Purl: pkg:deb/ubuntu/perl?arch=source&distro=focal

Affected ranges

Type: ECOSYSTEM
Events: Introduced

0Unknown introduced version / All previous versions are affected

Affected versions

5.*

5.28.1-6build1

5.30.0-7

5.30.0-9

5.30.0-9build1

5.30.0-9ubuntu0.2

5.30.0-9ubuntu0.3

5.30.0-9ubuntu0.4

5.30.0-9ubuntu0.5

Ecosystem specific

{
    "binaries": [
        {
            "binary_name": "libperl5.30",
            "binary_version": "5.30.0-9ubuntu0.5"
        },
        {
            "binary_version": "5.30.0-9ubuntu0.5",
            "binary_name": "perl"
        },
        {
            "binary_name": "perl-base",
            "binary_version": "5.30.0-9ubuntu0.5"
        },
        {
            "binary_version": "5.30.0-9ubuntu0.5",
            "binary_name": "perl-debug"
        },
        {
            "binary_version": "5.30.0-9ubuntu0.5",
            "binary_name": "perl-modules-5.30"
        }
    ]
}

Database specific

source

"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-48959.json"

libio-compress-perl

Package

Name: libio-compress-perl
Purl: pkg:deb/ubuntu/libio-compress-perl?arch=source&distro=focal

Affected ranges

Type: ECOSYSTEM
Events: Introduced

0Unknown introduced version / All previous versions are affected

Affected versions

2.*

2.087-1

2.089-1

2.090-1

2.093-1

Ecosystem specific

{
    "binaries": [
        {
            "binary_version": "2.093-1",
            "binary_name": "libio-compress-perl"
        }
    ]
}

Database specific

source

"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-48959.json"

Ubuntu:22.04:LTS

libio-compress-perl

Package

Name: libio-compress-perl
Purl: pkg:deb/ubuntu/libio-compress-perl?arch=source&distro=jammy

Affected ranges

Type: ECOSYSTEM
Events: Introduced

0Unknown introduced version / All previous versions are affected

Affected versions

2.*

2.101-1

2.102-1

Ecosystem specific

{
    "binaries": [
        {
            "binary_name": "libio-compress-perl",
            "binary_version": "2.102-1"
        }
    ]
}

Database specific

source

"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-48959.json"

perl

Package

Name: perl
Purl: pkg:deb/ubuntu/perl?arch=source&distro=jammy

Affected ranges

Type: ECOSYSTEM
Events: Introduced

0Unknown introduced version / All previous versions are affected

Affected versions

5.*

5.32.1-3ubuntu3

5.34.0-3ubuntu1

5.34.0-3ubuntu1.1

5.34.0-3ubuntu1.2

5.34.0-3ubuntu1.3

5.34.0-3ubuntu1.4

5.34.0-3ubuntu1.5

Ecosystem specific

{
    "binaries": [
        {
            "binary_name": "libperl5.34",
            "binary_version": "5.34.0-3ubuntu1.5"
        },
        {
            "binary_name": "perl",
            "binary_version": "5.34.0-3ubuntu1.5"
        },
        {
            "binary_version": "5.34.0-3ubuntu1.5",
            "binary_name": "perl-base"
        },
        {
            "binary_version": "5.34.0-3ubuntu1.5",
            "binary_name": "perl-debug"
        },
        {
            "binary_version": "5.34.0-3ubuntu1.5",
            "binary_name": "perl-modules-5.34"
        }
    ]
}

Database specific

source

"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-48959.json"

Ubuntu:24.04:LTS

libio-compress-perl

Package

Name: libio-compress-perl
Purl: pkg:deb/ubuntu/libio-compress-perl?arch=source&distro=noble

Affected ranges

Type: ECOSYSTEM
Events: Introduced

0Unknown introduced version / All previous versions are affected

Affected versions

2.*

2.206-1

2.207-1

Ecosystem specific

{
    "binaries": [
        {
            "binary_name": "libio-compress-perl",
            "binary_version": "2.207-1"
        }
    ]
}

Database specific

source

"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-48959.json"

perl

Package

Name: perl
Purl: pkg:deb/ubuntu/perl?arch=source&distro=noble

Affected ranges

Type: ECOSYSTEM
Events: Introduced

0Unknown introduced version / All previous versions are affected

Affected versions

5.*

5.36.0-9ubuntu1

5.36.0-10ubuntu1

5.38.2-3

5.38.2-3.2

5.38.2-3.2build1

5.38.2-3.2build2

5.38.2-3.2build2.1

5.38.2-3.2ubuntu0.1

5.38.2-3.2ubuntu0.2

Ecosystem specific

{
    "binaries": [
        {
            "binary_name": "libperl5.38t64",
            "binary_version": "5.38.2-3.2ubuntu0.2"
        },
        {
            "binary_version": "5.38.2-3.2ubuntu0.2",
            "binary_name": "perl"
        },
        {
            "binary_name": "perl-base",
            "binary_version": "5.38.2-3.2ubuntu0.2"
        },
        {
            "binary_name": "perl-debug",
            "binary_version": "5.38.2-3.2ubuntu0.2"
        },
        {
            "binary_name": "perl-modules-5.38",
            "binary_version": "5.38.2-3.2ubuntu0.2"
        }
    ]
}

Database specific

source

"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-48959.json"

Ubuntu:25.10

libio-compress-perl

Package

Name: libio-compress-perl
Purl: pkg:deb/ubuntu/libio-compress-perl?arch=source&distro=questing

Affected ranges

Type: ECOSYSTEM
Events: Introduced

0Unknown introduced version / All previous versions are affected

Affected versions

2.*

2.213-1

Ecosystem specific

{
    "binaries": [
        {
            "binary_name": "libio-compress-perl",
            "binary_version": "2.213-1"
        }
    ]
}

Database specific

source

"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-48959.json"

perl

Package

Name: perl
Purl: pkg:deb/ubuntu/perl?arch=source&distro=questing

Affected ranges

Type: ECOSYSTEM
Events: Introduced

0Unknown introduced version / All previous versions are affected

Affected versions

5.*

5.40.1-2

5.40.1-3

5.40.1-5

5.40.1-6

5.40.1-6build1

Ecosystem specific

{
    "binaries": [
        {
            "binary_name": "libperl5.40",
            "binary_version": "5.40.1-6build1"
        },
        {
            "binary_name": "perl",
            "binary_version": "5.40.1-6build1"
        },
        {
            "binary_name": "perl-base",
            "binary_version": "5.40.1-6build1"
        },
        {
            "binary_version": "5.40.1-6build1",
            "binary_name": "perl-debug"
        },
        {
            "binary_version": "5.40.1-6build1",
            "binary_name": "perl-modules-5.40"
        }
    ]
}

Database specific

source

"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-48959.json"

Ubuntu:26.04:LTS

libio-compress-perl

Package

Name: libio-compress-perl
Purl: pkg:deb/ubuntu/libio-compress-perl?arch=source&distro=resolute

Affected ranges

Type: ECOSYSTEM
Events: Introduced

0Unknown introduced version / All previous versions are affected

Affected versions

2.*

2.213-1

2.214-1

2.217-1

Ecosystem specific

{
    "binaries": [
        {
            "binary_name": "libio-compress-perl",
            "binary_version": "2.217-1"
        }
    ]
}

Database specific

source

"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-48959.json"

perl

Package

Name: perl
Purl: pkg:deb/ubuntu/perl?arch=source&distro=resolute

Affected ranges

Type: ECOSYSTEM
Events: Introduced

0Unknown introduced version / All previous versions are affected

Affected versions

5.*

5.40.1-6build1

5.40.1-7build1

Ecosystem specific

{
    "binaries": [
        {
            "binary_version": "5.40.1-7build1",
            "binary_name": "libperl5.40"
        },
        {
            "binary_name": "perl",
            "binary_version": "5.40.1-7build1"
        },
        {
            "binary_version": "5.40.1-7build1",
            "binary_name": "perl-base"
        },
        {
            "binary_name": "perl-debug",
            "binary_version": "5.40.1-7build1"
        },
        {
            "binary_version": "5.40.1-7build1",
            "binary_name": "perl-modules-5.40"
        }
    ]
}

Database specific

source

"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-48959.json"

Ubuntu:Pro:14.04:LTS

perl

Package

Name: perl
Purl: pkg:deb/ubuntu/perl?arch=source&distro=esm-infra-legacy%2Ftrusty

Affected ranges

Type: ECOSYSTEM
Events: Introduced

0Unknown introduced version / All previous versions are affected

Affected versions

5.*

5.14.2-21build1

5.18.1-4

5.18.1-4build1

5.18.1-5

5.18.2-2

5.18.2-2ubuntu1

5.18.2-2ubuntu1.1

5.18.2-2ubuntu1.3

5.18.2-2ubuntu1.4

5.18.2-2ubuntu1.6

5.18.2-2ubuntu1.7

5.18.2-2ubuntu1.7+esm3

5.18.2-2ubuntu1.7+esm4

5.18.2-2ubuntu1.7+esm5

Ecosystem specific

{
    "binaries": [
        {
            "binary_name": "libcgi-fast-perl",
            "binary_version": "5.18.2-2ubuntu1.7+esm5"
        },
        {
            "binary_version": "5.18.2-2ubuntu1.7+esm5",
            "binary_name": "libperl5.18"
        },
        {
            "binary_version": "5.18.2-2ubuntu1.7+esm5",
            "binary_name": "perl"
        },
        {
            "binary_name": "perl-base",
            "binary_version": "5.18.2-2ubuntu1.7+esm5"
        },
        {
            "binary_name": "perl-debug",
            "binary_version": "5.18.2-2ubuntu1.7+esm5"
        },
        {
            "binary_version": "5.18.2-2ubuntu1.7+esm5",
            "binary_name": "perl-modules"
        }
    ]
}

Database specific

source

"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-48959.json"

Ubuntu:Pro:16.04:LTS

perl

Package

Name: perl
Purl: pkg:deb/ubuntu/perl?arch=source&distro=esm-infra%2Fxenial

Affected ranges

Type: ECOSYSTEM
Events: Introduced

0Unknown introduced version / All previous versions are affected

Affected versions

5.*

5.20.2-6

5.22.1-3

5.22.1-4

5.22.1-5

5.22.1-7

5.22.1-8

5.22.1-9

5.22.1-9ubuntu0.2

5.22.1-9ubuntu0.3

5.22.1-9ubuntu0.5

5.22.1-9ubuntu0.6

5.22.1-9ubuntu0.9

5.22.1-9ubuntu0.9+esm1

5.22.1-9ubuntu0.9+esm2

Ecosystem specific

{
    "binaries": [
        {
            "binary_name": "libperl5.22",
            "binary_version": "5.22.1-9ubuntu0.9+esm2"
        },
        {
            "binary_name": "perl",
            "binary_version": "5.22.1-9ubuntu0.9+esm2"
        },
        {
            "binary_version": "5.22.1-9ubuntu0.9+esm2",
            "binary_name": "perl-base"
        },
        {
            "binary_version": "5.22.1-9ubuntu0.9+esm2",
            "binary_name": "perl-debug"
        },
        {
            "binary_name": "perl-modules-5.22",
            "binary_version": "5.22.1-9ubuntu0.9+esm2"
        }
    ]
}

Database specific

source

"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-48959.json"