CVE-2026-11526 (GCVE-0-2026-11526)
Vulnerability from cvelistv5 – Published: 2026-06-14 11:39 – Updated: 2026-06-14 11:39
VLAI
Title
GD versions before 2.86 for Perl allow OS command injection and file overwrite via a 2-arg open() of filename arguments in _make_filehandle
Summary
GD versions before 2.86 for Perl allow OS command injection and file overwrite via a 2-arg open() of filename arguments in _make_filehandle.
GD::Image::_make_filehandle opens a filename argument with Perl's 2-arg open(), so a filename that begins or ends with a pipe ("| cmd", "cmd |") or begins with a redirect ("> path", ">> path") is run as a command or redirect rather than opened as a file. _make_filehandle is the single open path behind every filename-accepting constructor (new, newFromPng, newFromJpeg, and the rest); the in-memory *Data variants do not open a path and are unaffected.
Any caller that forwards untrusted input to one of these constructors as a pathname can run an arbitrary command or truncate a file under the process UID.
Severity
No CVSS data available.
CWE
Assigner
References
2 references
| URL | Tags |
|---|---|
| https://github.com/lstein/Perl-GD/commit/67b16371… | patch |
| https://metacpan.org/release/RURBAN/GD-2.86/changes | release-notes |
{
"containers": {
"cna": {
"affected": [
{
"collectionURL": "https://cpan.org/modules",
"defaultStatus": "unaffected",
"packageName": "GD",
"product": "GD",
"programFiles": [
"lib/GD/Image.pm",
"lib/GD/Image_pm.PL"
],
"programRoutines": [
{
"name": "GD::Image::_make_filehandle"
}
],
"repo": "https://github.com/lstein/Perl-GD",
"vendor": "RURBAN",
"versions": [
{
"lessThan": "2.86",
"status": "affected",
"version": "0",
"versionType": "custom"
}
]
}
],
"descriptions": [
{
"lang": "en",
"value": "GD versions before 2.86 for Perl allow OS command injection and file overwrite via a 2-arg open() of filename arguments in _make_filehandle.\n\nGD::Image::_make_filehandle opens a filename argument with Perl\u0027s 2-arg open(), so a filename that begins or ends with a pipe (\"| cmd\", \"cmd |\") or begins with a redirect (\"\u003e path\", \"\u003e\u003e path\") is run as a command or redirect rather than opened as a file. _make_filehandle is the single open path behind every filename-accepting constructor (new, newFromPng, newFromJpeg, and the rest); the in-memory *Data variants do not open a path and are unaffected.\n\nAny caller that forwards untrusted input to one of these constructors as a pathname can run an arbitrary command or truncate a file under the process UID."
}
],
"problemTypes": [
{
"descriptions": [
{
"cweId": "CWE-78",
"description": "CWE-78 Improper Neutralization of Special Elements used in an OS Command (\u0027OS Command Injection\u0027)",
"lang": "en",
"type": "CWE"
}
]
},
{
"descriptions": [
{
"cweId": "CWE-73",
"description": "CWE-73 External Control of File Name or Path",
"lang": "en",
"type": "CWE"
}
]
}
],
"providerMetadata": {
"dateUpdated": "2026-06-14T11:39:21.122Z",
"orgId": "9b29abf9-4ab0-4765-b253-1875cd9b441e",
"shortName": "CPANSec"
},
"references": [
{
"tags": [
"patch"
],
"url": "https://github.com/lstein/Perl-GD/commit/67b163713c6c78dfeb693da0978ae934e5cd8210.patch"
},
{
"tags": [
"release-notes"
],
"url": "https://metacpan.org/release/RURBAN/GD-2.86/changes"
}
],
"solutions": [
{
"lang": "en",
"value": "Upgrade to GD 2.86 or later, which opens filename arguments with a 3-arg read open so the filename is never interpreted as a command or redirect."
}
],
"source": {
"discovery": "UNKNOWN"
},
"title": "GD versions before 2.86 for Perl allow OS command injection and file overwrite via a 2-arg open() of filename arguments in _make_filehandle",
"workarounds": [
{
"lang": "en",
"value": "For deployments that cannot upgrade to 2.86, do not pass untrusted input as a pathname to GD::Image constructors. Callers can open the file themselves and pass the resulting filehandle, which bypasses the affected string path."
}
],
"x_generator": {
"engine": "cpansec-cna-tool 0.1"
}
}
},
"cveMetadata": {
"assignerOrgId": "9b29abf9-4ab0-4765-b253-1875cd9b441e",
"assignerShortName": "CPANSec",
"cveId": "CVE-2026-11526",
"datePublished": "2026-06-14T11:39:21.122Z",
"dateReserved": "2026-06-07T19:26:46.259Z",
"dateUpdated": "2026-06-14T11:39:21.122Z",
"state": "PUBLISHED"
},
"dataType": "CVE_RECORD",
"dataVersion": "5.2",
"vulnerability-lookup:meta": {
"epss": {
"cve": "CVE-2026-11526",
"date": "2026-06-14",
"epss": "0.00264",
"percentile": "0.50349"
},
"nvd": "{\"cve\":{\"id\":\"CVE-2026-11526\",\"sourceIdentifier\":\"9b29abf9-4ab0-4765-b253-1875cd9b441e\",\"published\":\"2026-06-14T12:16:22.403\",\"lastModified\":\"2026-06-14T12:16:22.403\",\"vulnStatus\":\"Received\",\"cveTags\":[],\"descriptions\":[{\"lang\":\"en\",\"value\":\"GD versions before 2.86 for Perl allow OS command injection and file overwrite via a 2-arg open() of filename arguments in _make_filehandle.\\n\\nGD::Image::_make_filehandle opens a filename argument with Perl\u0027s 2-arg open(), so a filename that begins or ends with a pipe (\\\"| cmd\\\", \\\"cmd |\\\") or begins with a redirect (\\\"\u003e path\\\", \\\"\u003e\u003e path\\\") is run as a command or redirect rather than opened as a file. _make_filehandle is the single open path behind every filename-accepting constructor (new, newFromPng, newFromJpeg, and the rest); the in-memory *Data variants do not open a path and are unaffected.\\n\\nAny caller that forwards untrusted input to one of these constructors as a pathname can run an arbitrary command or truncate a file under the process UID.\"}],\"metrics\":{},\"weaknesses\":[{\"source\":\"9b29abf9-4ab0-4765-b253-1875cd9b441e\",\"type\":\"Secondary\",\"description\":[{\"lang\":\"en\",\"value\":\"CWE-73\"},{\"lang\":\"en\",\"value\":\"CWE-78\"}]}],\"references\":[{\"url\":\"https://github.com/lstein/Perl-GD/commit/67b163713c6c78dfeb693da0978ae934e5cd8210.patch\",\"source\":\"9b29abf9-4ab0-4765-b253-1875cd9b441e\"},{\"url\":\"https://metacpan.org/release/RURBAN/GD-2.86/changes\",\"source\":\"9b29abf9-4ab0-4765-b253-1875cd9b441e\"}]}}"
}
}
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Sightings
| Author | Source | Type | Date | Other |
|---|
Nomenclature
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