High
Security advisory
curl before version 7.51.0 doesn't parse the authority component of the URL correctly when the host name part ends with a '#' character, and could instead be tricked into connecting to a different host. This may have security implications if you for example use an URL parser that follows the RFC to check for allowed domains before using curl to request them.
- Products
- Not specified
- Affected versions
- Not specified
- Fixed versions
- Not specified
- CVEs
- CVE-2016-8624
- Confirmed fixed CVEs
- Not specified
- Updated in this feed
- 1 Nov 2026, 06:13 UTC · Revision 1
Source evidence
curl before version 7.51.0 doesn't parse the authority component of the URL correctly when the host name part ends with a '#' character, and could instead be tricked into connecting to a different host. This may have security implications if you for example use an URL parser that follows the RFC to check for allowed domains before using curl to request them.
osv:CVE-2016-8624
Complete source record
{
"id": "9411ed09bf1b3aca0fb264c3814d2650a1b8858edb9ae650ae1f98b746fa87af",
"url": "https://osv.dev/vulnerability/CVE-2016-8624",
"method": "structured",
"payload": {
"kind": "advisory",
"title": "CVE-2016-8624",
"summary": "curl before version 7.51.0 doesn't parse the authority component of the URL correctly when the host name part ends with a '#' character, and could instead be tricked into connecting to a different host. This may have security implications if you for example use an URL parser that follows the RFC to check for allowed domains before using curl to request them.",
"evidence": "osv:CVE-2016-8624",
"products": [],
"severity": "high",
"structured": {
"id": "CVE-2016-8624",
"aliases": [
"CURL-CVE-2016-8624",
"CVE-2016-8624"
],
"metrics": [
{
"type": "CVSS_V3",
"score": "CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N"
}
],
"affected": [
{
"ranges": [
{
"repo": "https://github.com/curl/curl",
"type": "GIT",
"events": [
{
"introduced": "0"
},
{
"fixed": "3c561c657c2f0e553b19115a506592a8bbd744bc"
}
],
"database_specific": {
"extracted_events": [
{
"cpe": "cpe:2.3:a:haxx:curl:*:*:*:*:*:*:*:*",
"range": [
{
"introduced": "0"
},
{
"fixed": "7.51.0"
}
],
"source": "CPE_RANGE"
}
]
}
}
],
"versions": [
"curl-7_50_3",
"curl-7_50_2",
"curl-7_50_1",
"curl-7_50_0",
"curl-7_49_1",
"curl-7_49_0",
"curl-7_48_0",
"curl-7_47_1",
"curl-7_47_0",
"curl-7_46_0",
"curl-7_45_0",
"curl-7_44_0",
"curl-7_43_0",
"curl-7_42_0",
"curl-7_41_0",
"curl-7_40_0",
"curl-7_39_0",
"curl-7_38_0",
"curl-7_37_1",
"curl-7_37_0",
"curl-7_36_0",
"curl-7_35_0",
"curl-7_34_0",
"curl-7_33_0",
"curl-7_32_0",
"curl-7_31_0",
"curl-7_30_0",
"curl-7_29_0",
"curl-7_28_1",
"curl-7_28_0",
"curl-7_27_0",
"curl-7_26_0",
"curl-7_25_0",
"curl-7_23_1",
"curl-7_23_0",
"curl-7_22_0",
"curl-7_21_7",
"curl-7_21_6",
"curl-7_21_5",
"curl-7_21_4",
"curl-7_21_3",
"curl-7_21_2",
"curl-7_21_1",
"curl-7_21_0",
"curl-7_20_1",
"curl-7_20_0",
"curl-7_19_7",
"curl-7_19_6",
"curl-7_19_5",
"curl-7_19_4",
"curl-7_19_3",
"curl-7_19_2",
"curl-7_19_1",
"curl-7_19_0",
"curl-7_18_2",
"curl-7_18_1",
"curl-7_18_0",
"curl-7_17_1",
"curl-7_17_0",
"curl-7_17_0-preldapfix",
"curl-7_16_4",
"curl-7_16_3",
"curl-7_16_2",
"curl-7_16_1",
"curl-7_16_0",
"curl-7_15_6-prepipeline",
"curl-7_15_5",
"curl-7_15_4",
"curl-7_15_3",
"curl-7_15_2",
"curl-7_15_1",
"curl-7_15_0",
"curl-7_14_1",
"curl-7_14_0",
"curl-7_13_2",
"curl-7_13_1",
"before_ftp_statemachine",
"curl-7_13_0",
"curl-7_12_3",
"curl-7_12_2",
"curl-7_12_1",
"curl-7_12_0",
"curl-7_11_2",
"curl-7_11_1",
"curl-7_11_0",
"curl-7_10_8",
"curl-7_10_7",
"curl-7_10_6",
"curl-7_10_5",
"curl-7_10_4",
"curl-7_10_3",
"curl-7_10_2",
"curl-7_10_1",
"curl-7_10",
"curl-7_9_8",
"curl-7_9_7",
"curl-7_9_7-pre2",
"curl-7_9_6",
"curl-7_9_5",
"curl-7_9_5-pre4",
"curl-7_9_5-pre2",
"curl-7_9_4",
"curl-7_9_3",
"curl-7_9_3-pre3",
"curl-7_9_3-pre2",
"curl-7_9_3-pre1",
"curl-7_9_2",
"curl-7_9_1",
"curl-7_9",
"before_urldata_rename",
"curl-7_8_1",
"curl-7_8_1-pre3",
"curl-7_8",
"curl-7_8-pre2",
"curl-7_7_3",
"curl-7_7_2",
"curl-7_7_1",
"curl-7_7",
"curl-7_7-beta5",
"curl-7_7-beta3",
"curl-7_7-beta2",
"curl-7_7-beta1",
"curl-7_7_alpha2",
"curl-7_6_1",
"curl-7_6_1-pre3",
"curl-7_6_1-pre2",
"curl-7_6_1-pre1",
"curl-7_6",
"curl-7_6-pre4",
"curl_7_6-pre3",
"curl-7_5_2",
"curl-7_5",
"curl-7_4_1",
"curl-7_3",
"curl-7_2",
"curl-7_1_1",
"curl-6_5_2",
"curl-6_5_1",
"curl-6_5"
],
"database_specific": {
"source": "https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2016-8624.json"
}
}
],
"modified": "2026-10-24T10:30:36.950794984Z",
"provider": "osv",
"references": [
"https://lists.apache.org/thread.html/r58af02e294bd07f487e2c64ffc0a29b837db5600e33b6e698b9d696b%40%3Cissues.bookkeeper.apache.org%3E",
"https://lists.apache.org/thread.html/rf4c02775860db415b4955778a131c2795223f61cb8c6a450893651e4%40%3Cissues.bookkeeper.apache.org%3E",
"https://lists.apache.org/thread.html/rfaa4d578587f52a9c4d176af516a681a712c664e3be440a4163691d5%40%3Ccommits.pulsar.apache.org%3E",
"https://access.redhat.com/errata/RHSA-2018:2486",
"https://access.redhat.com/errata/RHSA-2018:3558",
"https://security.gentoo.org/glsa/201701-47",
"https://www.tenable.com/security/tns-2016-21",
"https://bugzilla.redhat.com/show_bug.cgi?id=CVE-2016-8624",
"https://curl.haxx.se/docs/adv_20161102J.html"
],
"provider_metadata": {}
},
"related_cves": [
{
"value": "CVE-2016-8624",
"evidence": "/id"
}
],
"security_relevant": true,
"severity_evidence": "/severity/0/score"
},
"source_id": "core-osv",
"document_id": 434100,
"published_at": "2018-07-31T21:29:00.367+00:00"
}