HighFix available
git — security advisory
git_connect_git in connect.c in Git before 2.30.1 allows a repository path to contain a newline character, which may result in unexpected cross-protocol requests, as demonstrated by the git://localhost:1234/%0d%0a%0d%0aGET%20/%20HTTP/1.1 substring.
- Products
- git
- Affected versions
- Not specified
- Fixed versions
- 2.26.3-r1
- CVEs
- CVE-2021-40330
- Confirmed fixed CVEs
- Not specified
- Updated in this feed
- 31 Oct 2026, 22:06 UTC · Revision 1
Source evidence
git_connect_git in connect.c in Git before 2.30.1 allows a repository path to contain a newline character, which may result in unexpected cross-protocol requests, as demonstrated by the git://localhost:1234/%0d%0a%0d%0aGET%20/%20HTTP/1.1 substring.
osv:ALPINE-CVE-2021-40330
git
Fixed versions: 2.26.3-r1
Complete source record
{
"id": "85731330eef7712d69cb4b049094520ea86ae591243855b2c1ba35f52320cb63",
"url": "https://osv.dev/vulnerability/ALPINE-CVE-2021-40330",
"method": "structured",
"payload": {
"kind": "advisory",
"title": "ALPINE-CVE-2021-40330",
"summary": "git_connect_git in connect.c in Git before 2.30.1 allows a repository path to contain a newline character, which may result in unexpected cross-protocol requests, as demonstrated by the git://localhost:1234/%0d%0a%0d%0aGET%20/%20HTTP/1.1 substring.",
"evidence": "osv:ALPINE-CVE-2021-40330",
"products": [
{
"name": {
"value": "git",
"evidence": "/affected/0/package/name"
},
"prerequisites": [],
"fixed_versions": [
{
"value": "2.26.3-r1",
"evidence": "/affected/0/ranges"
}
],
"affected_versions": []
}
],
"severity": "high",
"structured": {
"id": "ALPINE-CVE-2021-40330",
"aliases": [
"ALPINE-CVE-2021-40330"
],
"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": [
{
"type": "ECOSYSTEM",
"events": [
{
"introduced": "0"
},
{
"fixed": "2.26.3-r1"
}
]
}
],
"package": {
"name": "git",
"purl": "pkg:apk/alpine/git?arch=source",
"ecosystem": "Alpine:v3.12"
},
"database_specific": {
"source": "https://storage.googleapis.com/cve-osv-conversion/alpine/ALPINE-CVE-2021-40330.json"
},
"ecosystem_specific": {}
}
],
"modified": "2026-10-23T17:17:56.209682889Z",
"provider": "osv",
"upstream": [
"CVE-2021-40330"
],
"references": [
"https://security.alpinelinux.org/vuln/CVE-2021-40330"
]
},
"related_cves": [
{
"value": "CVE-2021-40330",
"evidence": "/upstream"
}
],
"security_relevant": true,
"severity_evidence": "/severity/0/score"
},
"source_id": "core-osv",
"document_id": 415542,
"published_at": "2021-08-31T04:15:10.667+00:00"
}