CVE-2026-120650 (GCVE-0-2026-120650)
Vulnerability from cvelistv5 – Published: 2026-11-03 23:41 – Updated: 2026-11-03 23:41
VLAI
EPSS
VEX
Title
CGI versions before 5.00 for Perl allow memory, CPU and disk exhaustion via missing or unenforced request size, parameter and upload limits
Summary
CGI versions before 5.00 for Perl allow memory, CPU and disk exhaustion via missing or unenforced request size, parameter and upload limits.
$CGI::POST_MAX defaults to no limit, and when set is not enforced for chunked multipart bodies or for the boundary line of a multipart body without a boundary= parameter. Bodies saved as PUTDATA, POSTDATA or PATCHDATA uploads are read into memory in one go, and nothing limits the number of parameters or uploads.
Severity
No CVSS data available.
CWE
- CWE-770 - Allocation of Resources Without Limits or Throttling
Assigner
References
6 references
{
"containers": {
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{
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"defaultStatus": "unaffected",
"modules": [
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"packageURL": "pkg:cpan/CGI",
"programFiles": [
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],
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{
"name": "CGI::init"
},
{
"name": "CGI::parse_params"
},
{
"name": "CGI::read_multipart"
},
{
"name": "CGI::read_multipart_related"
},
{
"name": "CGI::read_postdata_putdata"
},
{
"name": "CGI::MultipartBuffer::new"
},
{
"name": "CGI::MultipartBuffer::fillBuffer"
}
],
"repo": "https://github.com/leejo/CGI.pm",
"versions": [
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}
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}
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}
],
"problemTypes": [
{
"descriptions": [
{
"cweId": "CWE-770",
"description": "CWE-770 Allocation of Resources Without Limits or Throttling",
"lang": "en",
"type": "CWE"
}
]
}
],
"providerMetadata": {
"dateUpdated": "2026-11-03T23:41:14.474Z",
"orgId": "9b29abf9-4ab0-4765-b253-1875cd9b441e",
"shortName": "CPANSec"
},
"references": [
{
"tags": [
"technical-description"
],
"url": "https://metacpan.org/release/LEEJO/CGI-4.72/source/lib/CGI.pm"
},
{
"tags": [
"release-notes"
],
"url": "https://metacpan.org/release/LEEJO/CGI-5.00/changes"
},
{
"tags": [
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"url": "https://github.com/leejo/CGI.pm/commit/17b838dc14d2b82ae6c7e76f66ec2c3f3b08038b.patch"
},
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},
{
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],
"url": "https://github.com/leejo/CGI.pm/commit/8940a74e53a41563f72813b45f99cceaaa4c92e8.patch"
}
],
"solutions": [
{
"lang": "en",
"value": "Upgrade to CGI 5.00 or later."
}
],
"source": {
"discovery": "UNKNOWN"
},
"title": "CGI versions before 5.00 for Perl allow memory, CPU and disk exhaustion via missing or unenforced request size, parameter and upload limits",
"workarounds": [
{
"lang": "en",
"value": "For deployments that cannot upgrade, limit the request body size at the web server and set $CGI::POST_MAX."
}
],
"x_generator": {
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"cveMetadata": {
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"cveId": "CVE-2026-120650",
"datePublished": "2026-11-03T23:41:14.474Z",
"dateReserved": "2026-11-02T17:58:00.641Z",
"dateUpdated": "2026-11-03T23:41:14.474Z",
"state": "PUBLISHED"
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"date": "2026-11-04",
"epss": "0.00185",
"percentile": "0.08145"
},
"nvd": {
"cve": {
"affected": [
{
"affectedData": [
{
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"defaultStatus": "unaffected",
"modules": [
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],
"packageName": "CGI",
"packageURL": "pkg:cpan/CGI",
"programFiles": [
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],
"programRoutines": [
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{
"name": "CGI::parse_params"
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{
"name": "CGI::read_multipart"
},
{
"name": "CGI::read_multipart_related"
},
{
"name": "CGI::read_postdata_putdata"
},
{
"name": "CGI::MultipartBuffer::new"
},
{
"name": "CGI::MultipartBuffer::fillBuffer"
}
],
"repo": "https://github.com/leejo/CGI.pm",
"versions": [
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"source": "9b29abf9-4ab0-4765-b253-1875cd9b441e"
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],
"cveTags": [],
"descriptions": [
{
"lang": "en",
"value": "CGI versions before 5.00 for Perl allow memory, CPU and disk exhaustion via missing or unenforced request size, parameter and upload limits.\n\n$CGI::POST_MAX defaults to no limit, and when set is not enforced for chunked multipart bodies or for the boundary line of a multipart body without a boundary= parameter. Bodies saved as PUTDATA, POSTDATA or PATCHDATA uploads are read into memory in one go, and nothing limits the number of parameters or uploads."
}
],
"id": "CVE-2026-120650",
"lastModified": "2026-11-04T18:42:35.810",
"metrics": {},
"published": "2026-11-04T00:17:26.507",
"references": [
{
"source": "9b29abf9-4ab0-4765-b253-1875cd9b441e",
"url": "https://github.com/leejo/CGI.pm/commit/17b838dc14d2b82ae6c7e76f66ec2c3f3b08038b.patch"
},
{
"source": "9b29abf9-4ab0-4765-b253-1875cd9b441e",
"url": "https://github.com/leejo/CGI.pm/commit/277baeb74fde7bce975a7bd0a1f98dcf1b9b2050.patch"
},
{
"source": "9b29abf9-4ab0-4765-b253-1875cd9b441e",
"url": "https://github.com/leejo/CGI.pm/commit/8940a74e53a41563f72813b45f99cceaaa4c92e8.patch"
},
{
"source": "9b29abf9-4ab0-4765-b253-1875cd9b441e",
"url": "https://github.com/leejo/CGI.pm/commit/f3febefe63fe3881d8c3ae10fa83ca8ec950b959.patch"
},
{
"source": "9b29abf9-4ab0-4765-b253-1875cd9b441e",
"url": "https://metacpan.org/release/LEEJO/CGI-4.72/source/lib/CGI.pm"
},
{
"source": "9b29abf9-4ab0-4765-b253-1875cd9b441e",
"url": "https://metacpan.org/release/LEEJO/CGI-5.00/changes"
}
],
"sourceIdentifier": "9b29abf9-4ab0-4765-b253-1875cd9b441e",
"vulnStatus": "Deferred",
"weaknesses": [
{
"description": [
{
"lang": "en",
"value": "CWE-770"
}
],
"source": "9b29abf9-4ab0-4765-b253-1875cd9b441e",
"type": "Secondary"
}
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},
"redhat_vex": {
"aggregate_severity": "Important",
"current_release_date": "2026-11-04T22:06:40+00:00",
"cve": "CVE-2026-120650",
"id": "CVE-2026-120650",
"initial_release_date": "2026-11-03T23:41:14.474000+00:00",
"product_status:known_affected": "4",
"source": "Red Hat CSAF VEX",
"status": "final",
"title": "perl-cgi: perl-cgi: Denial of Service via unenforced request and upload limits",
"url": "https://security.access.redhat.com/data/csaf/v2/vex/2026/cve-2026-120650.json",
"version": "3"
}
}
}
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