MediumFix available
curl — security advisory
libcurl wrongly allows cookies to be set for Top Level Domains (TLDs) if thehost name is provided with a trailing dot.curl can be told to receive and send cookies. curl's "cookie engine" can bebuilt with or without [Public Suffix List](https://publicsuffix.org/)awareness. If PSL support not provided, a more rudimentary check exists to atleast prevent cookies from being set on TLDs. This check was broken if thehost name in the URL uses a trailing dot.This can allow arbitrary sites to set cookies that then would get sent to adifferent and unrelated site or domain.
- Products
- curl
- Affected versions
- Not specified
- Fixed versions
- 7.83.1-r0
- CVEs
- CVE-2022-27779
- Confirmed fixed CVEs
- Not specified
- Updated in this feed
- 30 Oct 2026, 14:11 UTC · Revision 1
Source evidence
libcurl wrongly allows cookies to be set for Top Level Domains (TLDs) if thehost name is provided with a trailing dot.curl can be told to receive and send cookies. curl's "cookie engine" can bebuilt with or without [Public Suffix List](https://publicsuffix.org/)awareness. If PSL support not provided, a more rudimentary check exists to atleast prevent cookies from being set on TLDs. This check was broken if thehost name in the URL uses a trailing dot.This can allow arbitrary sites to set cookies that then would get sent to adifferent and unrelated site or domain.
osv:ALPINE-CVE-2022-27779
curl
Fixed versions: 7.83.1-r0
curl
Fixed versions: 7.83.1-r0
curl
Fixed versions: 7.83.1-r0
curl
Fixed versions: 7.83.1-r0
curl
Fixed versions: 7.83.1-r0
curl
Fixed versions: 7.83.1-r0
curl
Fixed versions: 7.83.1-r0
curl
Fixed versions: 7.83.1-r0
curl
Fixed versions: 7.83.1-r0
Complete source record
{
"id": "cc6eb15b636e61308a59a8170a000e53691e79ed7555a03e3cffda6888430fb2",
"url": "https://osv.dev/vulnerability/ALPINE-CVE-2022-27779",
"method": "structured",
"payload": {
"kind": "advisory",
"title": "ALPINE-CVE-2022-27779",
"summary": "libcurl wrongly allows cookies to be set for Top Level Domains (TLDs) if thehost name is provided with a trailing dot.curl can be told to receive and send cookies. curl's \"cookie engine\" can bebuilt with or without [Public Suffix List](https://publicsuffix.org/)awareness. If PSL support not provided, a more rudimentary check exists to atleast prevent cookies from being set on TLDs. This check was broken if thehost name in the URL uses a trailing dot.This can allow arbitrary sites to set cookies that then would get sent to adifferent and unrelated site or domain.",
"evidence": "osv:ALPINE-CVE-2022-27779",
"products": [
{
"name": {
"value": "curl",
"evidence": "/affected/0/package/name"
},
"prerequisites": [],
"fixed_versions": [
{
"value": "7.83.1-r0",
"evidence": "/affected/0/ranges"
}
],
"affected_versions": []
},
{
"name": {
"value": "curl",
"evidence": "/affected/1/package/name"
},
"prerequisites": [],
"fixed_versions": [
{
"value": "7.83.1-r0",
"evidence": "/affected/1/ranges"
}
],
"affected_versions": []
},
{
"name": {
"value": "curl",
"evidence": "/affected/2/package/name"
},
"prerequisites": [],
"fixed_versions": [
{
"value": "7.83.1-r0",
"evidence": "/affected/2/ranges"
}
],
"affected_versions": []
},
{
"name": {
"value": "curl",
"evidence": "/affected/3/package/name"
},
"prerequisites": [],
"fixed_versions": [
{
"value": "7.83.1-r0",
"evidence": "/affected/3/ranges"
}
],
"affected_versions": []
},
{
"name": {
"value": "curl",
"evidence": "/affected/4/package/name"
},
"prerequisites": [],
"fixed_versions": [
{
"value": "7.83.1-r0",
"evidence": "/affected/4/ranges"
}
],
"affected_versions": []
},
{
"name": {
"value": "curl",
"evidence": "/affected/5/package/name"
},
"prerequisites": [],
"fixed_versions": [
{
"value": "7.83.1-r0",
"evidence": "/affected/5/ranges"
}
],
"affected_versions": []
},
{
"name": {
"value": "curl",
"evidence": "/affected/6/package/name"
},
"prerequisites": [],
"fixed_versions": [
{
"value": "7.83.1-r0",
"evidence": "/affected/6/ranges"
}
],
"affected_versions": []
},
{
"name": {
"value": "curl",
"evidence": "/affected/7/package/name"
},
"prerequisites": [],
"fixed_versions": [
{
"value": "7.83.1-r0",
"evidence": "/affected/7/ranges"
}
],
"affected_versions": []
},
{
"name": {
"value": "curl",
"evidence": "/affected/8/package/name"
},
"prerequisites": [],
"fixed_versions": [
{
"value": "7.83.1-r0",
"evidence": "/affected/8/ranges"
}
],
"affected_versions": []
}
],
"severity": "medium",
"structured": {
"id": "ALPINE-CVE-2022-27779",
"aliases": [
"ALPINE-CVE-2022-27779"
],
"metrics": [
{
"type": "CVSS_V3",
"score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N"
}
],
"affected": [
{
"ranges": [
{
"type": "ECOSYSTEM",
"events": [
{
"introduced": "7.82.0"
},
{
"fixed": "7.83.1-r0"
}
]
}
],
"package": {
"name": "curl",
"purl": "pkg:apk/alpine/curl?arch=source",
"ecosystem": "Alpine:v3.16"
},
"database_specific": {
"source": "https://storage.googleapis.com/cve-osv-conversion/alpine/ALPINE-CVE-2022-27779.json"
},
"ecosystem_specific": {}
},
{
"ranges": [
{
"type": "ECOSYSTEM",
"events": [
{
"introduced": "7.82.0"
},
{
"fixed": "7.83.1-r0"
}
]
}
],
"package": {
"name": "curl",
"purl": "pkg:apk/alpine/curl?arch=source",
"ecosystem": "Alpine:v3.17"
},
"database_specific": {
"source": "https://storage.googleapis.com/cve-osv-conversion/alpine/ALPINE-CVE-2022-27779.json"
},
"ecosystem_specific": {}
},
{
"ranges": [
{
"type": "ECOSYSTEM",
"events": [
{
"introduced": "7.82.0"
},
{
"fixed": "7.83.1-r0"
}
]
}
],
"package": {
"name": "curl",
"purl": "pkg:apk/alpine/curl?arch=source",
"ecosystem": "Alpine:v3.18"
},
"database_specific": {
"source": "https://storage.googleapis.com/cve-osv-conversion/alpine/ALPINE-CVE-2022-27779.json"
},
"ecosystem_specific": {}
},
{
"ranges": [
{
"type": "ECOSYSTEM",
"events": [
{
"introduced": "7.82.0"
},
{
"fixed": "7.83.1-r0"
}
]
}
],
"package": {
"name": "curl",
"purl": "pkg:apk/alpine/curl?arch=source",
"ecosystem": "Alpine:v3.19"
},
"database_specific": {
"source": "https://storage.googleapis.com/cve-osv-conversion/alpine/ALPINE-CVE-2022-27779.json"
},
"ecosystem_specific": {}
},
{
"ranges": [
{
"type": "ECOSYSTEM",
"events": [
{
"introduced": "7.82.0"
},
{
"fixed": "7.83.1-r0"
}
]
}
],
"package": {
"name": "curl",
"purl": "pkg:apk/alpine/curl?arch=source",
"ecosystem": "Alpine:v3.20"
},
"database_specific": {
"source": "https://storage.googleapis.com/cve-osv-conversion/alpine/ALPINE-CVE-2022-27779.json"
},
"ecosystem_specific": {}
},
{
"ranges": [
{
"type": "ECOSYSTEM",
"events": [
{
"introduced": "7.82.0"
},
{
"fixed": "7.83.1-r0"
}
]
}
],
"package": {
"name": "curl",
"purl": "pkg:apk/alpine/curl?arch=source",
"ecosystem": "Alpine:v3.21"
},
"database_specific": {
"source": "https://storage.googleapis.com/cve-osv-conversion/alpine/ALPINE-CVE-2022-27779.json"
},
"ecosystem_specific": {}
},
{
"ranges": [
{
"type": "ECOSYSTEM",
"events": [
{
"introduced": "7.82.0"
},
{
"fixed": "7.83.1-r0"
}
]
}
],
"package": {
"name": "curl",
"purl": "pkg:apk/alpine/curl?arch=source",
"ecosystem": "Alpine:v3.22"
},
"database_specific": {
"source": "https://storage.googleapis.com/cve-osv-conversion/alpine/ALPINE-CVE-2022-27779.json"
},
"ecosystem_specific": {}
},
{
"ranges": [
{
"type": "ECOSYSTEM",
"events": [
{
"introduced": "7.82.0"
},
{
"fixed": "7.83.1-r0"
}
]
}
],
"package": {
"name": "curl",
"purl": "pkg:apk/alpine/curl?arch=source",
"ecosystem": "Alpine:v3.23"
},
"database_specific": {
"source": "https://storage.googleapis.com/cve-osv-conversion/alpine/ALPINE-CVE-2022-27779.json"
},
"ecosystem_specific": {}
},
{
"ranges": [
{
"type": "ECOSYSTEM",
"events": [
{
"introduced": "7.82.0"
},
{
"fixed": "7.83.1-r0"
}
]
}
],
"package": {
"name": "curl",
"purl": "pkg:apk/alpine/curl?arch=source",
"ecosystem": "Alpine:v3.24"
},
"database_specific": {
"source": "https://storage.googleapis.com/cve-osv-conversion/alpine/ALPINE-CVE-2022-27779.json"
},
"ecosystem_specific": {}
}
],
"modified": "2026-10-15T07:17:54.194152229Z",
"provider": "osv",
"upstream": [
"CVE-2022-27779"
],
"references": [
"https://security.alpinelinux.org/vuln/CVE-2022-27779"
]
},
"related_cves": [
{
"value": "CVE-2022-27779",
"evidence": "/upstream"
}
],
"security_relevant": true,
"severity_evidence": "/severity/0/score"
},
"source_id": "core-osv",
"document_id": 321805,
"published_at": "2022-06-02T14:15:44.093+00:00"
}