UnratedFix available
libsoup: Fix of CVE-2026-66338
Type: advisorySources: OSV
- CVE-2026-66338: reject chunk-size lines that violate RFC 9112 (leading whitespace, sign prefix, "0x" prefix or trailing garbage) in soup_body_input_stream_read_chunked() to prevent HTTP request smuggling
- Products
- libsoup, libsoup-devel
- Affected versions
- Not specified
- Fixed versions
- 2.62.2-2.0.11.el7.tuxcare.els3
- CVEs
- CVE-2026-66338
- Confirmed fixed CVEs
- Not specified
- Updated in this feed
- 1 Nov 2026, 11:09 UTC · Revision 1
Source evidence
- CVE-2026-66338: reject chunk-size lines that violate RFC 9112 (leading whitespace, sign prefix, "0x" prefix or trailing garbage) in soup_body_input_stream_read_chunked() to prevent HTTP request smuggling
osv:CLSA-2026-1787751026
libsoup
Fixed versions: 2.62.2-2.0.11.el7.tuxcare.els3
libsoup-devel
Fixed versions: 2.62.2-2.0.11.el7.tuxcare.els3
Complete source record
{
"id": "27aa8e57d5a74e906d0d013340685ed2e9ad1c5f4a8efab427805a31b8b1c828",
"url": "https://osv.dev/vulnerability/CLSA-2026-1787751026",
"method": "structured",
"payload": {
"kind": "advisory",
"title": "libsoup: Fix of CVE-2026-66338",
"summary": "- CVE-2026-66338: reject chunk-size lines that violate RFC 9112 (leading whitespace, sign prefix, \"0x\" prefix or trailing garbage) in soup_body_input_stream_read_chunked() to prevent HTTP request smuggling",
"evidence": "osv:CLSA-2026-1787751026",
"products": [
{
"name": {
"value": "libsoup",
"evidence": "/affected/0/package/name"
},
"prerequisites": [],
"fixed_versions": [
{
"value": "2.62.2-2.0.11.el7.tuxcare.els3",
"evidence": "/affected/0/ranges"
}
],
"affected_versions": []
},
{
"name": {
"value": "libsoup-devel",
"evidence": "/affected/1/package/name"
},
"prerequisites": [],
"fixed_versions": [
{
"value": "2.62.2-2.0.11.el7.tuxcare.els3",
"evidence": "/affected/1/ranges"
}
],
"affected_versions": []
}
],
"severity": "unknown",
"structured": {
"id": "CLSA-2026-1787751026",
"aliases": [
"CLSA-2026-1787751026"
],
"affected": [
{
"ranges": [
{
"type": "ECOSYSTEM",
"events": [
{
"introduced": "0"
},
{
"fixed": "2.62.2-2.0.11.el7.tuxcare.els3"
}
]
}
],
"package": {
"name": "libsoup",
"purl": "pkg:rpm/tuxcare/libsoup?distro=centos-7",
"ecosystem": "TuxCare:CentOS:7"
},
"database_specific": {
"source": "https://github.com/cloudlinux/tuxcare-osv/tree/main/data/els_os/centos7els/CLSA-2026-1787751026.json"
}
},
{
"ranges": [
{
"type": "ECOSYSTEM",
"events": [
{
"introduced": "0"
},
{
"fixed": "2.62.2-2.0.11.el7.tuxcare.els3"
}
]
}
],
"package": {
"name": "libsoup-devel",
"purl": "pkg:rpm/tuxcare/libsoup-devel?distro=centos-7",
"ecosystem": "TuxCare:CentOS:7"
},
"database_specific": {
"source": "https://github.com/cloudlinux/tuxcare-osv/tree/main/data/els_os/centos7els/CLSA-2026-1787751026.json"
}
}
],
"modified": "2026-10-26T09:31:48.757480164Z",
"provider": "osv",
"upstream": [
"CVE-2026-66338"
],
"references": [
"https://errata.tuxcare.com/els_os/centos7els/CLSA-2026-1787751026.html",
"https://nvd.nist.gov/vuln/detail/CVE-2026-66338"
]
},
"related_cves": [
{
"value": "CVE-2026-66338",
"evidence": "/upstream"
}
],
"security_relevant": true,
"severity_evidence": null
},
"source_id": "core-osv",
"document_id": 448522,
"published_at": "2026-08-27T16:30:08+00:00"
}