UnratedFix available

UBUNTU-CVE-2026-5090

Type: advisorySource: OSV1 source record

Template::Plugin::HTML versions before 3.103 for Perl allows HTML and JavaScript to be injected. The html_filter function did not escape single quotes. HTML attributes inside of single quotes could be have code injected. For example, the variable "var" in would not be properly escaped. An attacker could insert some limited HTML and JavaScript, for example, var = " ' onclick='while (true) { alert(1) }'" Note that arbitrary HTML and JavaScript would be difficult to inject, because angle brackets, ampersands and double-quotes would still be escaped.

Announced 19 May 2026Source revision 1

Original source ↗

UBUNTU-CVE-2026-5090

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:UBUNTU-CVE-2026-5090

libtemplate-perl

Source reference: /affected/0/package/name

Affected versions: 2.24-1.2build1
Source reference: /affected/0/versions
2.24-1.2build2
Source reference: /affected/0/versions
Fixed versions: Not stated in this record
Prerequisites: Not stated in this record

libtemplate-perl

Source reference: /affected/1/package/name

Affected versions: 2.24-1.2build5
Source reference: /affected/1/versions
2.27-1
Source reference: /affected/1/versions
Fixed versions: Not stated in this record
Prerequisites: Not stated in this record

libtemplate-perl

Source reference: /affected/2/package/name

Affected versions: 2.27-1build1
Source reference: /affected/2/versions
2.27-1build2
Source reference: /affected/2/versions
Fixed versions: Not stated in this record
Prerequisites: Not stated in this record

libtemplate-perl

Source reference: /affected/3/package/name

Affected versions: 2.27-1build4
Source reference: /affected/3/versions
2.27-1build5
Source reference: /affected/3/versions
Fixed versions: 2.27-1ubuntu0.22.04.1
Source reference: /affected/3/ranges
Prerequisites: Not stated in this record

libtemplate-perl

Source reference: /affected/4/package/name

Affected versions: 2.27-1build7
Source reference: /affected/4/versions
2.27-1build8
Source reference: /affected/4/versions
2.27-1build9
Source reference: /affected/4/versions
2.27-1build10
Source reference: /affected/4/versions
Fixed versions: 2.27-1ubuntu0.24.04.1
Source reference: /affected/4/ranges
Prerequisites: Not stated in this record

libtemplate-perl

Source reference: /affected/5/package/name

Affected versions: 2.27-1build11
Source reference: /affected/5/versions
Fixed versions: 2.27-1ubuntu0.25.10.1
Source reference: /affected/5/ranges
Prerequisites: Not stated in this record

libtemplate-perl

Source reference: /affected/6/package/name

Affected versions: 2.27-1build11
Source reference: /affected/6/versions
3.102-1
Source reference: /affected/6/versions
Fixed versions: 3.102-1ubuntu0.1
Source reference: /affected/6/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"
          }
        ]
      }
    ],
    "package": {
      "name": "libtemplate-perl",
      "purl": "pkg:deb/ubuntu/libtemplate-perl?arch=source&distro=xenial",
      "ecosystem": "Ubuntu:16.04:LTS"
    },
    "versions": [
      "2.24-1.2build1",
      "2.24-1.2build2"
    ],
    "database_specific": {
      "source": "https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-5090.json"
    },
    "ecosystem_specific": {
      "binaries": [
        {
          "binary_name": "libtemplate-perl",
          "binary_version": "2.24-1.2build2"
        }
      ]
    }
  },
  {
    "ranges": [
      {
        "type": "ECOSYSTEM",
        "events": [
          {
            "introduced": "0"
          }
        ]
      }
    ],
    "package": {
      "name": "libtemplate-perl",
      "purl": "pkg:deb/ubuntu/libtemplate-perl?arch=source&distro=bionic",
      "ecosystem": "Ubuntu:18.04:LTS"
    },
    "versions": [
      "2.24-1.2build5",
      "2.27-1"
    ],
    "database_specific": {
      "source": "https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-5090.json"
    },
    "ecosystem_specific": {
      "binaries": [
        {
          "binary_name": "libtemplate-perl",
          "binary_version": "2.27-1"
        }
      ]
    }
  },
  {
    "ranges": [
      {
        "type": "ECOSYSTEM",
        "events": [
          {
            "introduced": "0"
          }
        ]
      }
    ],
    "package": {
      "name": "libtemplate-perl",
      "purl": "pkg:deb/ubuntu/libtemplate-perl?arch=source&distro=focal",
      "ecosystem": "Ubuntu:20.04:LTS"
    },
    "versions": [
      "2.27-1build1",
      "2.27-1build2"
    ],
    "database_specific": {
      "source": "https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-5090.json"
    },
    "ecosystem_specific": {
      "binaries": [
        {
          "binary_name": "libtemplate-perl",
          "binary_version": "2.27-1build2"
        }
      ]
    }
  },
  {
    "ranges": [
      {
        "type": "ECOSYSTEM",
        "events": [
          {
            "introduced": "0"
          },
          {
            "fixed": "2.27-1ubuntu0.22.04.1"
          }
        ]
      }
    ],
    "package": {
      "name": "libtemplate-perl",
      "purl": "pkg:deb/ubuntu/libtemplate-perl?arch=source&distro=jammy",
      "ecosystem": "Ubuntu:22.04:LTS"
    },
    "versions": [
      "2.27-1build4",
      "2.27-1build5"
    ],
    "database_specific": {
      "source": "https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-5090.json"
    },
    "ecosystem_specific": {
      "binaries": [
        {
          "binary_name": "libtemplate-perl",
          "binary_version": "2.27-1ubuntu0.22.04.1"
        }
      ],
      "availability": "No subscription required"
    }
  },
  {
    "ranges": [
      {
        "type": "ECOSYSTEM",
        "events": [
          {
            "introduced": "0"
          },
          {
            "fixed": "2.27-1ubuntu0.24.04.1"
          }
        ]
      }
    ],
    "package": {
      "name": "libtemplate-perl",
      "purl": "pkg:deb/ubuntu/libtemplate-perl?arch=source&distro=noble",
      "ecosystem": "Ubuntu:24.04:LTS"
    },
    "versions": [
      "2.27-1build7",
      "2.27-1build8",
      "2.27-1build9",
      "2.27-1build10"
    ],
    "database_specific": {
      "source": "https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-5090.json"
    },
    "ecosystem_specific": {
      "binaries": [
        {
          "binary_name": "libtemplate-perl",
          "binary_version": "2.27-1ubuntu0.24.04.1"
        }
      ],
      "availability": "No subscription required"
    }
  },
  {
    "ranges": [
      {
        "type": "ECOSYSTEM",
        "events": [
          {
            "introduced": "0"
          },
          {
            "fixed": "2.27-1ubuntu0.25.10.1"
          }
        ]
      }
    ],
    "package": {
      "name": "libtemplate-perl",
      "purl": "pkg:deb/ubuntu/libtemplate-perl?arch=source&distro=questing",
      "ecosystem": "Ubuntu:25.10"
    },
    "versions": [
      "2.27-1build11"
    ],
    "database_specific": {
      "source": "https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-5090.json"
    },
    "ecosystem_specific": {
      "binaries": [
        {
          "binary_name": "libtemplate-perl",
          "binary_version": "2.27-1ubuntu0.25.10.1"
        }
      ],
      "availability": "No subscription required"
    }
  },
  {
    "ranges": [
      {
        "type": "ECOSYSTEM",
        "events": [
          {
            "introduced": "0"
          },
          {
            "fixed": "3.102-1ubuntu0.1"
          }
        ]
      }
    ],
    "package": {
      "name": "libtemplate-perl",
      "purl": "pkg:deb/ubuntu/libtemplate-perl?arch=source&distro=resolute",
      "ecosystem": "Ubuntu:26.04:LTS"
    },
    "versions": [
      "2.27-1build11",
      "3.102-1"
    ],
    "database_specific": {
      "source": "https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-5090.json"
    },
    "ecosystem_specific": {
      "binaries": [
        {
          "binary_name": "libtemplate-perl",
          "binary_version": "3.102-1ubuntu0.1"
        }
      ],
      "availability": "No subscription required"
    }
  }
]

Publisher severity

No explicit severity was provided.

Event: #5796 · Revision 1
Added to Heist Feed: Sat, 24 Oct 2026 22:13:58 GMT
Publisher date: Tue, 19 May 2026 22:16:00 GMT

Read the original announcement