MediumFix available
qt6-base, qtbase-opensource-src — security advisory
An issue was discovered in Qt before 5.15.14, 6.x before 6.2.9, and 6.3.x through 6.5.x before 6.5.1. Qt Network incorrectly parses the strict-transport-security (HSTS) header, allowing unencrypted connections to be established, even when explicitly prohibited by the server. This happens if the case used for this header does not exactly match.
- Products
- qt6-base, qtbase-opensource-src
- Affected versions
- Not specified
- Fixed versions
- 5.15.8+dfsg-10, 6.4.2+dfsg-9
- CVEs
- CVE-2023-32762
- Confirmed fixed CVEs
- Not specified
- Updated in this feed
- 1 Nov 2026, 15:49 UTC · Revision 1
Source evidence
An issue was discovered in Qt before 5.15.14, 6.x before 6.2.9, and 6.3.x through 6.5.x before 6.5.1. Qt Network incorrectly parses the strict-transport-security (HSTS) header, allowing unencrypted connections to be established, even when explicitly prohibited by the server. This happens if the case used for this header does not exactly match.
osv:DEBIAN-CVE-2023-32762
qt6-base
Fixed versions: 6.4.2+dfsg-9
qt6-base
Fixed versions: 6.4.2+dfsg-9
qt6-base
Fixed versions: 6.4.2+dfsg-9
qtbase-opensource-src
Fixed versions: 5.15.8+dfsg-10
qtbase-opensource-src
Fixed versions: 5.15.8+dfsg-10
qtbase-opensource-src
Fixed versions: 5.15.8+dfsg-10
Complete source record
{
"id": "95bebac1d515bcdc07b9fb30cb729031ffeff799ad9536efbd23205a08f98a8f",
"url": "https://osv.dev/vulnerability/DEBIAN-CVE-2023-32762",
"method": "structured",
"payload": {
"kind": "advisory",
"title": "DEBIAN-CVE-2023-32762",
"summary": "An issue was discovered in Qt before 5.15.14, 6.x before 6.2.9, and 6.3.x through 6.5.x before 6.5.1. Qt Network incorrectly parses the strict-transport-security (HSTS) header, allowing unencrypted connections to be established, even when explicitly prohibited by the server. This happens if the case used for this header does not exactly match.",
"evidence": "osv:DEBIAN-CVE-2023-32762",
"products": [
{
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"value": "qt6-base",
"evidence": "/affected/0/package/name"
},
"prerequisites": [],
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{
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"evidence": "/affected/0/ranges"
}
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},
{
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{
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{
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{
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],
"severity": "medium",
"structured": {
"id": "DEBIAN-CVE-2023-32762",
"aliases": [
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],
"metrics": [
{
"type": "CVSS_V3",
"score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N"
}
],
"affected": [
{
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{
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"events": [
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{
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"package": {
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"package": {
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"ecosystem": "Debian:14"
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{
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],
"package": {
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"ecosystem": "Debian:13"
},
"database_specific": {
"source": "https://storage.googleapis.com/debian-osv/debian-cve-osv/DEBIAN-CVE-2023-32762.json"
},
"ecosystem_specific": {
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},
{
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],
"package": {
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"purl": "pkg:deb/debian/qtbase-opensource-src?arch=source&distro=forky",
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},
"database_specific": {
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},
"ecosystem_specific": {
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}
}
],
"modified": "2026-10-26T18:01:58.579996172Z",
"provider": "osv",
"upstream": [
"CVE-2023-32762"
],
"references": [
"https://security-tracker.debian.org/tracker/CVE-2023-32762"
]
},
"related_cves": [
{
"value": "CVE-2023-32762",
"evidence": "/upstream"
}
],
"security_relevant": true,
"severity_evidence": "/severity/0/score"
},
"source_id": "core-osv",
"document_id": 455786,
"published_at": "2023-05-28T23:15:09.57+00:00"
}