CVE-2026-116285 (GCVE-0-2026-116285)
Vulnerability from cvelistv5
Published
2026-10-28 17:16
Modified
2026-10-28 17:16
Severity ?
VLAI Severity ?
EPSS score ?
CWE
- CWE-1333 - Inefficient Regular Expression Complexity
Summary
HTTP::Body versions before 1.23_01 for Perl allow CPU exhaustion via quadratic regex backtracking when parsing chunked request bodies.
In chunked mode, used when no content length is given, add() matches each chunk-size line with `/^([\da-fA-F]+).*\x0D\x0A/`. On a line of hex digits whose first LF has no CR before it, the digits and `.*` backtrack against each other, so a single add() takes time quadratic in the line's length. Nothing limits how long the line can be.
A remote attacker can exhaust CPU in applications that pass chunked request bodies to HTTP::Body.
References
{
"containers": {
"cna": {
"affected": [
{
"collectionURL": "https://cpan.org/modules",
"defaultStatus": "unaffected",
"modules": [
"HTTP::Body"
],
"packageName": "HTTP-Body",
"packageURL": "pkg:cpan/HTTP-Body",
"programFiles": [
"lib/HTTP/Body.pm"
],
"programRoutines": [
{
"name": "HTTP::Body::add"
}
],
"repo": "https://github.com/libwww-perl/HTTP-Body",
"versions": [
{
"lessThan": "1.23_01",
"status": "affected",
"version": "0",
"versionType": "custom"
}
]
}
],
"descriptions": [
{
"lang": "en",
"value": "HTTP::Body versions before 1.23_01 for Perl allow CPU exhaustion via quadratic regex backtracking when parsing chunked request bodies.\n\nIn chunked mode, used when no content length is given, add() matches each chunk-size line with `/^([\\da-fA-F]+).*\\x0D\\x0A/`. On a line of hex digits whose first LF has no CR before it, the digits and `.*` backtrack against each other, so a single add() takes time quadratic in the line\u0027s length. Nothing limits how long the line can be.\n\nA remote attacker can exhaust CPU in applications that pass chunked request bodies to HTTP::Body."
}
],
"problemTypes": [
{
"descriptions": [
{
"cweId": "CWE-1333",
"description": "CWE-1333 Inefficient Regular Expression Complexity",
"lang": "en",
"type": "CWE"
}
]
}
],
"providerMetadata": {
"dateUpdated": "2026-10-28T17:16:16.997Z",
"orgId": "9b29abf9-4ab0-4765-b253-1875cd9b441e",
"shortName": "CPANSec"
},
"references": [
{
"tags": [
"patch"
],
"url": "https://github.com/libwww-perl/HTTP-Body/commit/954a5343d2a095b59d357f28759c5388d1169574.patch"
},
{
"tags": [
"release-notes"
],
"url": "https://metacpan.org/release/GETTY/HTTP-Body-1.24/changes"
}
],
"solutions": [
{
"lang": "en",
"value": "Upgrade to HTTP-Body 1.23_01 or later."
}
],
"source": {
"discovery": "UNKNOWN"
},
"title": "HTTP::Body versions before 1.23_01 for Perl allow CPU exhaustion via quadratic regex backtracking when parsing chunked request bodies",
"x_generator": {
"engine": "cpansec-cna-tool 0.1"
}
}
},
"cveMetadata": {
"assignerOrgId": "9b29abf9-4ab0-4765-b253-1875cd9b441e",
"assignerShortName": "CPANSec",
"cveId": "CVE-2026-116285",
"datePublished": "2026-10-28T17:16:16.997Z",
"dateReserved": "2026-10-25T23:54:54.524Z",
"dateUpdated": "2026-10-28T17:16:16.997Z",
"state": "PUBLISHED"
},
"dataType": "CVE_RECORD",
"dataVersion": "5.2"
}
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Sightings
| Author | Source | Type | Date |
|---|
Nomenclature
- Seen: The vulnerability was mentioned, discussed, or seen somewhere by the user.
- Confirmed: The vulnerability is confirmed from an analyst perspective.
- Published Proof of Concept: A public proof of concept is available for this vulnerability.
- Exploited: This vulnerability was exploited and seen by the user reporting the sighting.
- Patched: This vulnerability was successfully patched by the user reporting the sighting.
- Not exploited: This vulnerability was not exploited or seen by the user reporting the sighting.
- Not confirmed: The user expresses doubt about the veracity of the vulnerability.
- Not patched: This vulnerability was not successfully patched by the user reporting the sighting.
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