Incorrect reuse of client certificates
libcurl built on top of NSS (Network Security Services) incorrectly reused client certificates if a certificate from file was used for one TLS connection but no certificate set for a subsequent TLS connection. While the symptoms are similar to CVE-2016-5420 (Reusing connection with wrong client cert), this vulnerability was caused by an implementation detail of the NSS backend in libcurl, which is orthogonal to the cause of CVE-2016-5420.
- Products
- Not specified
- Affected versions
- Not specified
- Fixed versions
- Not specified
- CVEs
- CVE-2016-7141
- Confirmed fixed CVEs
- Not specified
- Updated in this feed
- 1 Nov 2026, 09:35 UTC · Revision 1
Source evidence
libcurl built on top of NSS (Network Security Services) incorrectly reused client certificates if a certificate from file was used for one TLS connection but no certificate set for a subsequent TLS connection. While the symptoms are similar to CVE-2016-5420 (Reusing connection with wrong client cert), this vulnerability was caused by an implementation detail of the NSS backend in libcurl, which is orthogonal to the cause of CVE-2016-5420.
osv:CURL-CVE-2016-7141
Complete source record
{
"id": "d74c3c02588d16073c5c8b0f4711b773acb4aef4464b242418a1b8b4eacaddeb",
"url": "https://osv.dev/vulnerability/CURL-CVE-2016-7141",
"method": "structured",
"payload": {
"kind": "advisory",
"title": "Incorrect reuse of client certificates",
"summary": "libcurl built on top of NSS (Network Security Services) incorrectly reused client certificates if a certificate from file was used for one TLS connection but no certificate set for a subsequent TLS connection. While the symptoms are similar to CVE-2016-5420 (Reusing connection with wrong client cert), this vulnerability was caused by an implementation detail of the NSS backend in libcurl, which is orthogonal to the cause of CVE-2016-5420.",
"evidence": "osv:CURL-CVE-2016-7141",
"products": [],
"severity": "high",
"structured": {
"id": "CURL-CVE-2016-7141",
"aliases": [
"CURL-CVE-2016-7141",
"CVE-2016-7141"
],
"affected": [
{
"ranges": [
{
"type": "SEMVER",
"events": [
{
"introduced": "7.19.6"
},
{
"fixed": "7.50.2"
}
]
}
],
"versions": [
"7.50.1",
"7.50.0",
"7.49.1",
"7.49.0",
"7.48.0",
"7.47.1",
"7.47.0",
"7.46.0",
"7.45.0",
"7.44.0",
"7.43.0",
"7.42.1",
"7.42.0",
"7.41.0",
"7.40.0",
"7.39.0",
"7.38.0",
"7.37.1",
"7.37.0",
"7.36.0",
"7.35.0",
"7.34.0",
"7.33.0",
"7.32.0",
"7.31.0",
"7.30.0",
"7.29.0",
"7.28.1",
"7.28.0",
"7.27.0",
"7.26.0",
"7.25.0",
"7.24.0",
"7.23.1",
"7.23.0",
"7.22.0",
"7.21.7",
"7.21.6",
"7.21.5",
"7.21.4",
"7.21.3",
"7.21.2",
"7.21.1",
"7.21.0",
"7.20.1",
"7.20.0",
"7.19.7",
"7.19.6"
],
"database_specific": {
"source": "https://curl.se/docs/CURL-CVE-2016-7141.json"
}
}
],
"modified": "2026-10-24T23:17:46Z",
"provider": "osv",
"references": [],
"provider_metadata": {
"CWE": {
"id": "CWE-305",
"desc": "Authentication Bypass by Primary Weakness"
},
"URL": "https://curl.se/docs/CVE-2016-7141.json",
"www": "https://curl.se/docs/CVE-2016-7141.html",
"affects": "both",
"package": "curl",
"severity": "High",
"last_affected": "7.50.1"
}
},
"related_cves": [
{
"value": "CVE-2016-7141",
"evidence": "/aliases"
}
],
"security_relevant": true,
"severity_evidence": "/database_specific/severity"
},
"source_id": "core-osv",
"document_id": 444201,
"published_at": "2016-09-07T08:00:00+00:00"
}