UBUNTU-CVE-2026-77568

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Source

https://ubuntu.com/security/CVE-2026-77568

Import Source

https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-77568.json

JSON Data

https://api.osv.dev/v1/vulns/UBUNTU-CVE-2026-77568

Upstream

CVE-2026-77568

Published

2026-09-21T00:00:00Z

Modified

2026-09-21T21:40:40Z

Severity

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

Summary

[none]

Details

Mojolicious is a real-time web framework for Perl. Prior to 9.48, the Mojolicious CSRF helpers csrf_field, csrf_token, and csrf_protect reuse an unchanged per-session token in rendered HTML. When response compression is enabled and attacker-influenced content is reflected in the same response, an unauthenticated attacker who can induce many victim requests and observe response sizes can use a BREACH compression side channel to recover the token and forge cross-site requests. API-only deployments that never render the token in HTML are not affected. This issue is fixed in version 9.48.

References

Affected packages

Ubuntu:22.04:LTS

perl

Package

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

Affected ranges

Type: ECOSYSTEM
Events: Introduced

0 Unknown 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

5.34.0-3ubuntu1.7

5.34.0-3ubuntu1.8

5.34.0-3ubuntu1.9

Ecosystem specific

{
    "binaries":  [
        {
            "binary_name":  "libperl5.34",
            "binary_version":  "5.34.0-3ubuntu1.9"
        },
        {
            "binary_name":  "perl",
            "binary_version":  "5.34.0-3ubuntu1.9"
        },
        {
            "binary_name":  "perl-base",
            "binary_version":  "5.34.0-3ubuntu1.9"
        },
        {
            "binary_name":  "perl-debug",
            "binary_version":  "5.34.0-3ubuntu1.9"
        },
        {
            "binary_name":  "perl-modules-5.34",
            "binary_version":  "5.34.0-3ubuntu1.9"
        }
    ]
}

Database specific

source

"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-77568.json"

Ubuntu:24.04:LTS

perl

Package

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

Affected ranges

Type: ECOSYSTEM
Events: Introduced

0 Unknown 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

5.38.2-3.2ubuntu0.3

5.38.2-3.2ubuntu0.4

5.38.2-3.2ubuntu0.6

Ecosystem specific

{
    "binaries":  [
        {
            "binary_name":  "libperl5.38t64",
            "binary_version":  "5.38.2-3.2ubuntu0.6"
        },
        {
            "binary_name":  "perl",
            "binary_version":  "5.38.2-3.2ubuntu0.6"
        },
        {
            "binary_name":  "perl-base",
            "binary_version":  "5.38.2-3.2ubuntu0.6"
        },
        {
            "binary_name":  "perl-debug",
            "binary_version":  "5.38.2-3.2ubuntu0.6"
        },
        {
            "binary_name":  "perl-modules-5.38",
            "binary_version":  "5.38.2-3.2ubuntu0.6"
        }
    ]
}

Database specific

source

"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-77568.json"

Ubuntu:26.04:LTS

perl

Package

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

Affected ranges

Type: ECOSYSTEM
Events: Introduced

0 Unknown introduced version / All previous versions are affected

Affected versions

5.*

5.40.1-6build1

5.40.1-7build1

5.40.1-7ubuntu0.1

5.40.1-7ubuntu0.2

5.40.1-7ubuntu0.3

Ecosystem specific

{
    "binaries":  [
        {
            "binary_name":  "libperl5.40",
            "binary_version":  "5.40.1-7ubuntu0.3"
        },
        {
            "binary_name":  "perl",
            "binary_version":  "5.40.1-7ubuntu0.3"
        },
        {
            "binary_name":  "perl-base",
            "binary_version":  "5.40.1-7ubuntu0.3"
        },
        {
            "binary_name":  "perl-debug",
            "binary_version":  "5.40.1-7ubuntu0.3"
        },
        {
            "binary_name":  "perl-modules-5.40",
            "binary_version":  "5.40.1-7ubuntu0.3"
        }
    ]
}

Database specific

source

"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-77568.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

0 Unknown 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

5.18.2-2ubuntu1.7+esm7

5.18.2-2ubuntu1.7+esm8

5.18.2-2ubuntu1.7+esm9

Ecosystem specific

{
    "binaries":  [
        {
            "binary_name":  "libcgi-fast-perl",
            "binary_version":  "5.18.2-2ubuntu1.7+esm9"
        },
        {
            "binary_name":  "libperl5.18",
            "binary_version":  "5.18.2-2ubuntu1.7+esm9"
        },
        {
            "binary_name":  "perl",
            "binary_version":  "5.18.2-2ubuntu1.7+esm9"
        },
        {
            "binary_name":  "perl-base",
            "binary_version":  "5.18.2-2ubuntu1.7+esm9"
        },
        {
            "binary_name":  "perl-debug",
            "binary_version":  "5.18.2-2ubuntu1.7+esm9"
        },
        {
            "binary_name":  "perl-modules",
            "binary_version":  "5.18.2-2ubuntu1.7+esm9"
        }
    ]
}

Database specific

source

"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-77568.json"

Ubuntu:Pro:16.04:LTS

perl

Package

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

Affected ranges

Type: ECOSYSTEM
Events: Introduced

0 Unknown 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

5.22.1-9ubuntu0.9+esm3

5.22.1-9ubuntu0.9+esm4

Ecosystem specific

{
    "binaries":  [
        {
            "binary_name":  "libperl5.22",
            "binary_version":  "5.22.1-9ubuntu0.9+esm4"
        },
        {
            "binary_name":  "perl",
            "binary_version":  "5.22.1-9ubuntu0.9+esm4"
        },
        {
            "binary_name":  "perl-base",
            "binary_version":  "5.22.1-9ubuntu0.9+esm4"
        },
        {
            "binary_name":  "perl-debug",
            "binary_version":  "5.22.1-9ubuntu0.9+esm4"
        },
        {
            "binary_name":  "perl-modules-5.22",
            "binary_version":  "5.22.1-9ubuntu0.9+esm4"
        }
    ]
}

Database specific

source

"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-77568.json"

Ubuntu:Pro:18.04:LTS

perl

Package

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

Affected ranges

Type: ECOSYSTEM
Events: Introduced

0 Unknown 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

5.26.1-6ubuntu0.7+esm2

5.26.1-6ubuntu0.7+esm3

5.26.1-6ubuntu0.7+esm4

Ecosystem specific

{
    "binaries":  [
        {
            "binary_name":  "libperl5.26",
            "binary_version":  "5.26.1-6ubuntu0.7+esm4"
        },
        {
            "binary_name":  "perl",
            "binary_version":  "5.26.1-6ubuntu0.7+esm4"
        },
        {
            "binary_name":  "perl-base",
            "binary_version":  "5.26.1-6ubuntu0.7+esm4"
        },
        {
            "binary_name":  "perl-debug",
            "binary_version":  "5.26.1-6ubuntu0.7+esm4"
        },
        {
            "binary_name":  "perl-modules-5.26",
            "binary_version":  "5.26.1-6ubuntu0.7+esm4"
        }
    ]
}

Database specific

source

"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-77568.json"

Ubuntu:Pro:20.04:LTS

perl

Package

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

Affected ranges

Type: ECOSYSTEM
Events: Introduced

0 Unknown 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

5.30.0-9ubuntu0.5+esm2

5.30.0-9ubuntu0.5+esm3

5.30.0-9ubuntu0.5+esm4

Ecosystem specific

{
    "binaries":  [
        {
            "binary_name":  "libperl5.30",
            "binary_version":  "5.30.0-9ubuntu0.5+esm4"
        },
        {
            "binary_name":  "perl",
            "binary_version":  "5.30.0-9ubuntu0.5+esm4"
        },
        {
            "binary_name":  "perl-base",
            "binary_version":  "5.30.0-9ubuntu0.5+esm4"
        },
        {
            "binary_name":  "perl-debug",
            "binary_version":  "5.30.0-9ubuntu0.5+esm4"
        },
        {
            "binary_name":  "perl-modules-5.30",
            "binary_version":  "5.30.0-9ubuntu0.5+esm4"
        }
    ]
}

Database specific

source

"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-77568.json"