High
Security advisory
An issue was discovered in Lightbend Play Framework 2.5.x through 2.6.23. When configured to make requests using an authenticated HTTP proxy, play-ws may sometimes, typically under high load, when connecting to a target host using https, expose the proxy credentials to the target host.
- Products
- Not specified
- Affected versions
- Not specified
- Fixed versions
- Not specified
- CVEs
- CVE-2019-17598
- Confirmed fixed CVEs
- Not specified
- Updated in this feed
- 1 Nov 2026, 05:15 UTC · Revision 1
Source evidence
An issue was discovered in Lightbend Play Framework 2.5.x through 2.6.23. When configured to make requests using an authenticated HTTP proxy, play-ws may sometimes, typically under high load, when connecting to a target host using https, expose the proxy credentials to the target host.
osv:CVE-2019-17598
Complete source record
{
"id": "1a9ba9920ad2159b26b9a84a31bbcdf42d832da5ca259df15f56d21884869a61",
"url": "https://osv.dev/vulnerability/CVE-2019-17598",
"method": "structured",
"payload": {
"kind": "advisory",
"title": "CVE-2019-17598",
"summary": "An issue was discovered in Lightbend Play Framework 2.5.x through 2.6.23. When configured to make requests using an authenticated HTTP proxy, play-ws may sometimes, typically under high load, when connecting to a target host using https, expose the proxy credentials to the target host.",
"evidence": "osv:CVE-2019-17598",
"products": [],
"severity": "high",
"structured": {
"id": "CVE-2019-17598",
"aliases": [
"CVE-2019-17598",
"GHSA-442g-gcg6-mhm4"
],
"metrics": [
{
"type": "CVSS_V3",
"score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N"
}
],
"affected": [
{
"ranges": [
{
"repo": "https://github.com/playframework/playframework",
"type": "GIT",
"events": [
{
"introduced": "7ca248b53edb1453e7aa93f4f9f47d7f46d1fd5b"
},
{
"last_affected": "ae72fea772d33c572fdd64afc2bd2078a3f41904"
},
{
"introduced": "5e26adc275fb1d0b536ecb14fc5883f448d8b0f0"
},
{
"last_affected": "2d8a82201e3be943f4117a65dbd6d31703899c39"
}
],
"database_specific": {
"extracted_events": [
{
"cpe": "cpe:2.3:a:lightbend:play_framework:*:*:*:*:*:*:*:*",
"range": [
{
"introduced": "2.5.0"
},
{
"last_affected": "2.5.19"
}
],
"source": "CPE_RANGE"
},
{
"cpe": "cpe:2.3:a:lightbend:play_framework:*:*:*:*:*:*:*:*",
"range": [
{
"introduced": "2.6.0"
},
{
"last_affected": "2.6.23"
}
],
"source": "CPE_RANGE"
}
]
}
}
],
"versions": [
"2.6.23",
"2.6.22",
"2.6.21",
"2.6.20",
"2.6.19",
"2.6.18",
"2.5.19",
"2.6.17",
"2.6.16",
"2.6.15",
"2.6.14",
"2.6.13",
"2.6.12",
"2.6.11",
"2.6.10",
"2.6.9",
"2.6.8",
"2.6.7",
"2.5.18",
"2.6.6",
"2.5.17",
"2.6.5",
"2.6.4",
"2.6.3",
"2.6.2",
"2.5.16",
"2.6.1",
"2.6.0",
"2.5.15",
"2.5.14",
"2.5.13",
"2.5.12",
"2.5.11",
"2.5.10",
"2.5.9",
"2.5.8",
"2.5.7",
"2.5.6",
"2.5.5",
"2.5.4",
"2.5.3",
"2.5.2",
"2.5.1",
"2.5.0"
],
"database_specific": {
"source": "https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2019-17598.json"
}
}
],
"modified": "2026-10-24T10:30:26.280712371Z",
"provider": "osv",
"references": [
"https://www.playframework.com/security/vulnerability",
"https://www.playframework.com/security/vulnerability/CVE-2019-17598-PlayWSHttpConnectAuthorizationHeaders"
],
"provider_metadata": {}
},
"related_cves": [
{
"value": "CVE-2019-17598",
"evidence": "/id"
}
],
"security_relevant": true,
"severity_evidence": "/severity/0/score"
},
"source_id": "core-osv",
"document_id": 431579,
"published_at": "2019-11-05T15:15:12.153+00:00"
}