Medium
libgd-securityimage-perl — security advisory
GD::SecurityImage versions through 1.75 for Perl use rand to generate secrets. The random method creates the challenge text used for the CAPTCHA by sampling characters from an array using Perl's built-in rand function, and generates a (by default) six-character string. The built-in rand function is unsuitable for security applications because it is predictable and reversible.
- Products
- libgd-securityimage-perl
- Affected versions
- 1.73-2, 1.75-1, 1.75-2, 1.75-3
- Fixed versions
- Not specified
- CVEs
- CVE-2026-13082
- Confirmed fixed CVEs
- Not specified
- Updated in this feed
- 31 Oct 2026, 02:41 UTC · Revision 1
Source evidence
GD::SecurityImage versions through 1.75 for Perl use rand to generate secrets. The random method creates the challenge text used for the CAPTCHA by sampling characters from an array using Perl's built-in rand function, and generates a (by default) six-character string. The built-in rand function is unsuitable for security applications because it is predictable and reversible.
osv:UBUNTU-CVE-2026-13082
libgd-securityimage-perl
Fixed versions: Not specified
libgd-securityimage-perl
Fixed versions: Not specified
libgd-securityimage-perl
Fixed versions: Not specified
libgd-securityimage-perl
Fixed versions: Not specified
libgd-securityimage-perl
Fixed versions: Not specified
libgd-securityimage-perl
Fixed versions: Not specified
libgd-securityimage-perl
Fixed versions: Not specified
Complete source record
{
"id": "fb82c1473690c0f516ccf8ab62559e0d7127708fe149e6dc56f5c71477f90bb9",
"url": "https://osv.dev/vulnerability/UBUNTU-CVE-2026-13082",
"method": "structured",
"payload": {
"kind": "advisory",
"title": "UBUNTU-CVE-2026-13082",
"summary": "GD::SecurityImage versions through 1.75 for Perl use rand to generate secrets. The random method creates the challenge text used for the CAPTCHA by sampling characters from an array using Perl's built-in rand function, and generates a (by default) six-character string. The built-in rand function is unsuitable for security applications because it is predictable and reversible.",
"evidence": "osv:UBUNTU-CVE-2026-13082",
"products": [
{
"name": {
"value": "libgd-securityimage-perl",
"evidence": "/affected/0/package/name"
},
"prerequisites": [],
"fixed_versions": [],
"affected_versions": [
{
"value": "1.73-2",
"evidence": "/affected/0/versions"
}
]
},
{
"name": {
"value": "libgd-securityimage-perl",
"evidence": "/affected/1/package/name"
},
"prerequisites": [],
"fixed_versions": [],
"affected_versions": [
{
"value": "1.73-2",
"evidence": "/affected/1/versions"
}
]
},
{
"name": {
"value": "libgd-securityimage-perl",
"evidence": "/affected/2/package/name"
},
"prerequisites": [],
"fixed_versions": [],
"affected_versions": [
{
"value": "1.75-1",
"evidence": "/affected/2/versions"
}
]
},
{
"name": {
"value": "libgd-securityimage-perl",
"evidence": "/affected/3/package/name"
},
"prerequisites": [],
"fixed_versions": [],
"affected_versions": [
{
"value": "1.75-1",
"evidence": "/affected/3/versions"
}
]
},
{
"name": {
"value": "libgd-securityimage-perl",
"evidence": "/affected/4/package/name"
},
"prerequisites": [],
"fixed_versions": [],
"affected_versions": [
{
"value": "1.75-2",
"evidence": "/affected/4/versions"
}
]
},
{
"name": {
"value": "libgd-securityimage-perl",
"evidence": "/affected/5/package/name"
},
"prerequisites": [],
"fixed_versions": [],
"affected_versions": [
{
"value": "1.75-3",
"evidence": "/affected/5/versions"
}
]
},
{
"name": {
"value": "libgd-securityimage-perl",
"evidence": "/affected/6/package/name"
},
"prerequisites": [],
"fixed_versions": [],
"affected_versions": [
{
"value": "1.75-3",
"evidence": "/affected/6/versions"
}
]
}
],
"severity": "medium",
"structured": {
"id": "UBUNTU-CVE-2026-13082",
"aliases": [
"UBUNTU-CVE-2026-13082"
],
"metrics": [
{
"type": "CVSS_V3",
"score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N"
},
{
"type": "Ubuntu",
"score": "medium"
}
],
"affected": [
{
"ranges": [
{
"type": "ECOSYSTEM",
"events": [
{
"introduced": "0"
}
]
}
],
"package": {
"name": "libgd-securityimage-perl",
"purl": "pkg:deb/ubuntu/libgd-securityimage-perl?arch=source&distro=xenial",
"ecosystem": "Ubuntu:16.04:LTS"
},
"versions": [
"1.73-2"
],
"database_specific": {
"source": "https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-13082.json"
},
"ecosystem_specific": {
"binaries": [
{
"binary_name": "libgd-securityimage-perl",
"binary_version": "1.73-2"
}
]
}
},
{
"ranges": [
{
"type": "ECOSYSTEM",
"events": [
{
"introduced": "0"
}
]
}
],
"package": {
"name": "libgd-securityimage-perl",
"purl": "pkg:deb/ubuntu/libgd-securityimage-perl?arch=source&distro=bionic",
"ecosystem": "Ubuntu:18.04:LTS"
},
"versions": [
"1.73-2"
],
"database_specific": {
"source": "https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-13082.json"
},
"ecosystem_specific": {
"binaries": [
{
"binary_name": "libgd-securityimage-perl",
"binary_version": "1.73-2"
}
]
}
},
{
"ranges": [
{
"type": "ECOSYSTEM",
"events": [
{
"introduced": "0"
}
]
}
],
"package": {
"name": "libgd-securityimage-perl",
"purl": "pkg:deb/ubuntu/libgd-securityimage-perl?arch=source&distro=focal",
"ecosystem": "Ubuntu:20.04:LTS"
},
"versions": [
"1.75-1"
],
"database_specific": {
"source": "https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-13082.json"
},
"ecosystem_specific": {
"binaries": [
{
"binary_name": "libgd-securityimage-perl",
"binary_version": "1.75-1"
}
]
}
},
{
"ranges": [
{
"type": "ECOSYSTEM",
"events": [
{
"introduced": "0"
}
]
}
],
"package": {
"name": "libgd-securityimage-perl",
"purl": "pkg:deb/ubuntu/libgd-securityimage-perl?arch=source&distro=jammy",
"ecosystem": "Ubuntu:22.04:LTS"
},
"versions": [
"1.75-1"
],
"database_specific": {
"source": "https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-13082.json"
},
"ecosystem_specific": {
"binaries": [
{
"binary_name": "libgd-securityimage-perl",
"binary_version": "1.75-1"
}
]
}
},
{
"ranges": [
{
"type": "ECOSYSTEM",
"events": [
{
"introduced": "0"
}
]
}
],
"package": {
"name": "libgd-securityimage-perl",
"purl": "pkg:deb/ubuntu/libgd-securityimage-perl?arch=source&distro=noble",
"ecosystem": "Ubuntu:24.04:LTS"
},
"versions": [
"1.75-2"
],
"database_specific": {
"source": "https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-13082.json"
},
"ecosystem_specific": {
"binaries": [
{
"binary_name": "libgd-securityimage-perl",
"binary_version": "1.75-2"
}
]
}
},
{
"ranges": [
{
"type": "ECOSYSTEM",
"events": [
{
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],
"package": {
"name": "libgd-securityimage-perl",
"purl": "pkg:deb/ubuntu/libgd-securityimage-perl?arch=source&distro=stonking",
"ecosystem": "Ubuntu:26.10"
},
"versions": [
"1.75-3"
],
"database_specific": {
"source": "https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-13082.json"
},
"ecosystem_specific": {
"binaries": [
{
"binary_name": "libgd-securityimage-perl",
"binary_version": "1.75-3"
}
]
}
},
{
"ranges": [
{
"type": "ECOSYSTEM",
"events": [
{
"introduced": "0"
}
]
}
],
"package": {
"name": "libgd-securityimage-perl",
"purl": "pkg:deb/ubuntu/libgd-securityimage-perl?arch=source&distro=resolute",
"ecosystem": "Ubuntu:26.04:LTS"
},
"versions": [
"1.75-3"
],
"database_specific": {
"source": "https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-13082.json"
},
"ecosystem_specific": {
"binaries": [
{
"binary_name": "libgd-securityimage-perl",
"binary_version": "1.75-3"
}
]
}
}
],
"modified": "2026-10-17T12:58:45.867135827Z",
"provider": "osv",
"upstream": [
"CVE-2026-13082"
],
"references": [
"https://ubuntu.com/security/CVE-2026-13082",
"https://www.cve.org/CVERecord?id=CVE-2026-13082",
"https://lists.security.metacpan.org/cve-announce/msg/41903267/",
"https://security.metacpan.org/patches/G/GD-SecurityImage/1.75/CVE-2026-13082-r1.patch"
]
},
"related_cves": [
{
"value": "CVE-2026-13082",
"evidence": "/upstream"
}
],
"security_relevant": true,
"severity_evidence": "/severity/0/score"
},
"source_id": "core-osv",
"document_id": 359028,
"published_at": "2026-07-17T13:17:00+00:00"
}