High
golang-github-go-git-go-git, golang-github-go-git-go-git-v6 — security advisory
go-git is an extensible git implementation library written in pure Go. Prior to 5.19.2 and 6.0.0-alpha.5, worktree operations (including checkout, status, and add) resolve symbolic links inside the working tree without confining resolution to the worktree boundary, so a maliciously crafted repository containing a symlink can cause go-git to read from or write to files outside the intended working directory when the repository is cloned and its worktree operations are used. Versions 5.19.2 and 6.0.0-alpha.5.
- Products
- golang-github-go-git-go-git, golang-github-go-git-go-git-v6
- Affected versions
- 5.14.0-1, 5.16.2-1, 5.16.2-1ubuntu0.1~esm1, 5.19.1-1, 5.19.2-1, 5.4.2-3, 5.4.2-3build1, 5.4.2-3ubuntu0.1~esm1, 5.4.2-3ubuntu0.1~esm2, 5.4.2-4, 5.4.2-4ubuntu0.24.04.1, 5.4.2-4ubuntu0.24.04.2, 5.4.2-4ubuntu0.24.04.2+esm1, 5.4.2-4ubuntu0.24.04.3, 5.4.2-4ubuntu0.24.04.3+esm1, 5.4.2-4ubuntu0.24.04.3+esm2, 5.4.2-4ubuntu0.24.04.3+esm3, 6.0.0~alpha.4-1, 6.0.0~alpha.4-2, 6.0.0~alpha.5-1, 6.0.0~alpha.5-2
- Fixed versions
- Not specified
- CVEs
- CVE-2026-71556
- Confirmed fixed CVEs
- Not specified
- Updated in this feed
- 31 Oct 2026, 03:15 UTC · Revision 1
Source evidence
go-git is an extensible git implementation library written in pure Go. Prior to 5.19.2 and 6.0.0-alpha.5, worktree operations (including checkout, status, and add) resolve symbolic links inside the working tree without confining resolution to the worktree boundary, so a maliciously crafted repository containing a symlink can cause go-git to read from or write to files outside the intended working directory when the repository is cloned and its worktree operations are used. Versions 5.19.2 and 6.0.0-alpha.5.
osv:UBUNTU-CVE-2026-71556
golang-github-go-git-go-git
Fixed versions: Not specified
golang-github-go-git-go-git
Fixed versions: Not specified
golang-github-go-git-go-git
Fixed versions: Not specified
golang-github-go-git-go-git-v6
Fixed versions: Not specified
golang-github-go-git-go-git
Fixed versions: Not specified
Complete source record
{
"id": "5e90e972879e219c716fbddf7e7b332f5e3c02129181fe778e894297dc02bcd5",
"url": "https://osv.dev/vulnerability/UBUNTU-CVE-2026-71556",
"method": "structured",
"payload": {
"kind": "advisory",
"title": "UBUNTU-CVE-2026-71556",
"summary": "go-git is an extensible git implementation library written in pure Go. Prior to 5.19.2 and 6.0.0-alpha.5, worktree operations (including checkout, status, and add) resolve symbolic links inside the working tree without confining resolution to the worktree boundary, so a maliciously crafted repository containing a symlink can cause go-git to read from or write to files outside the intended working directory when the repository is cloned and its worktree operations are used. Versions 5.19.2 and 6.0.0-alpha.5.",
"evidence": "osv:UBUNTU-CVE-2026-71556",
"products": [
{
"name": {
"value": "golang-github-go-git-go-git",
"evidence": "/affected/0/package/name"
},
"prerequisites": [],
"fixed_versions": [],
"affected_versions": [
{
"value": "5.4.2-3",
"evidence": "/affected/0/versions"
},
{
"value": "5.4.2-3ubuntu0.1~esm1",
"evidence": "/affected/0/versions"
},
{
"value": "5.4.2-3ubuntu0.1~esm2",
"evidence": "/affected/0/versions"
}
]
},
{
"name": {
"value": "golang-github-go-git-go-git",
"evidence": "/affected/1/package/name"
},
"prerequisites": [],
"fixed_versions": [],
"affected_versions": [
{
"value": "5.4.2-3build1",
"evidence": "/affected/1/versions"
},
{
"value": "5.4.2-4",
"evidence": "/affected/1/versions"
},
{
"value": "5.4.2-4ubuntu0.24.04.1",
"evidence": "/affected/1/versions"
},
{
"value": "5.4.2-4ubuntu0.24.04.2",
"evidence": "/affected/1/versions"
},
{
"value": "5.4.2-4ubuntu0.24.04.2+esm1",
"evidence": "/affected/1/versions"
},
{
"value": "5.4.2-4ubuntu0.24.04.3",
"evidence": "/affected/1/versions"
},
{
"value": "5.4.2-4ubuntu0.24.04.3+esm1",
"evidence": "/affected/1/versions"
},
{
"value": "5.4.2-4ubuntu0.24.04.3+esm2",
"evidence": "/affected/1/versions"
},
{
"value": "5.4.2-4ubuntu0.24.04.3+esm3",
"evidence": "/affected/1/versions"
}
]
},
{
"name": {
"value": "golang-github-go-git-go-git",
"evidence": "/affected/2/package/name"
},
"prerequisites": [],
"fixed_versions": [],
"affected_versions": [
{
"value": "5.16.2-1",
"evidence": "/affected/2/versions"
},
{
"value": "5.19.1-1",
"evidence": "/affected/2/versions"
},
{
"value": "5.19.2-1",
"evidence": "/affected/2/versions"
}
]
},
{
"name": {
"value": "golang-github-go-git-go-git-v6",
"evidence": "/affected/3/package/name"
},
"prerequisites": [],
"fixed_versions": [],
"affected_versions": [
{
"value": "6.0.0~alpha.4-1",
"evidence": "/affected/3/versions"
},
{
"value": "6.0.0~alpha.4-2",
"evidence": "/affected/3/versions"
},
{
"value": "6.0.0~alpha.5-1",
"evidence": "/affected/3/versions"
},
{
"value": "6.0.0~alpha.5-2",
"evidence": "/affected/3/versions"
}
]
},
{
"name": {
"value": "golang-github-go-git-go-git",
"evidence": "/affected/4/package/name"
},
"prerequisites": [],
"fixed_versions": [],
"affected_versions": [
{
"value": "5.14.0-1",
"evidence": "/affected/4/versions"
},
{
"value": "5.16.2-1",
"evidence": "/affected/4/versions"
},
{
"value": "5.16.2-1ubuntu0.1~esm1",
"evidence": "/affected/4/versions"
}
]
}
],
"severity": "high",
"structured": {
"id": "UBUNTU-CVE-2026-71556",
"aliases": [
"UBUNTU-CVE-2026-71556"
],
"metrics": [
{
"type": "CVSS_V3",
"score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:H/A:L"
},
{
"type": "Ubuntu",
"score": "medium"
}
],
"affected": [
{
"ranges": [
{
"type": "ECOSYSTEM",
"events": [
{
"introduced": "0"
}
]
}
],
"package": {
"name": "golang-github-go-git-go-git",
"purl": "pkg:deb/ubuntu/golang-github-go-git-go-git?arch=source&distro=esm-apps%2Fjammy",
"ecosystem": "Ubuntu:Pro:22.04:LTS"
},
"versions": [
"5.4.2-3",
"5.4.2-3ubuntu0.1~esm1",
"5.4.2-3ubuntu0.1~esm2"
],
"database_specific": {
"source": "https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-71556.json"
},
"ecosystem_specific": {
"binaries": [
{
"binary_name": "go-git",
"binary_version": "5.4.2-3ubuntu0.1~esm2"
},
{
"binary_name": "golang-github-go-git-go-git-dev",
"binary_version": "5.4.2-3ubuntu0.1~esm2"
}
]
}
},
{
"ranges": [
{
"type": "ECOSYSTEM",
"events": [
{
"introduced": "0"
}
]
}
],
"package": {
"name": "golang-github-go-git-go-git",
"purl": "pkg:deb/ubuntu/golang-github-go-git-go-git?arch=source&distro=esm-apps%2Fnoble",
"ecosystem": "Ubuntu:Pro:24.04:LTS"
},
"versions": [
"5.4.2-3build1",
"5.4.2-4",
"5.4.2-4ubuntu0.24.04.1",
"5.4.2-4ubuntu0.24.04.2",
"5.4.2-4ubuntu0.24.04.2+esm1",
"5.4.2-4ubuntu0.24.04.3",
"5.4.2-4ubuntu0.24.04.3+esm1",
"5.4.2-4ubuntu0.24.04.3+esm2",
"5.4.2-4ubuntu0.24.04.3+esm3"
],
"database_specific": {
"source": "https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-71556.json"
},
"ecosystem_specific": {
"binaries": [
{
"binary_name": "go-git",
"binary_version": "5.4.2-4ubuntu0.24.04.3+esm3"
},
{
"binary_name": "golang-github-go-git-go-git-dev",
"binary_version": "5.4.2-4ubuntu0.24.04.3+esm3"
}
]
}
},
{
"ranges": [
{
"type": "ECOSYSTEM",
"events": [
{
"introduced": "0"
}
]
}
],
"package": {
"name": "golang-github-go-git-go-git",
"purl": "pkg:deb/ubuntu/golang-github-go-git-go-git?arch=source&distro=stonking",
"ecosystem": "Ubuntu:26.10"
},
"versions": [
"5.16.2-1",
"5.19.1-1",
"5.19.2-1"
],
"database_specific": {
"source": "https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-71556.json"
},
"ecosystem_specific": {
"binaries": [
{
"binary_name": "go-git",
"binary_version": "5.19.2-1"
},
{
"binary_name": "golang-github-go-git-go-git-dev",
"binary_version": "5.19.2-1"
},
{
"binary_name": "golang-github-go-git-go-git-v5-dev",
"binary_version": "5.19.2-1"
}
]
}
},
{
"ranges": [
{
"type": "ECOSYSTEM",
"events": [
{
"introduced": "0"
}
]
}
],
"package": {
"name": "golang-github-go-git-go-git-v6",
"purl": "pkg:deb/ubuntu/golang-github-go-git-go-git-v6?arch=source&distro=stonking",
"ecosystem": "Ubuntu:26.10"
},
"versions": [
"6.0.0~alpha.4-1",
"6.0.0~alpha.4-2",
"6.0.0~alpha.5-1",
"6.0.0~alpha.5-2"
],
"database_specific": {
"source": "https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-71556.json"
},
"ecosystem_specific": {
"binaries": [
{
"binary_name": "golang-github-go-git-go-git-v6-dev",
"binary_version": "6.0.0~alpha.5-2"
}
]
}
},
{
"ranges": [
{
"type": "ECOSYSTEM",
"events": [
{
"introduced": "0"
}
]
}
],
"package": {
"name": "golang-github-go-git-go-git",
"purl": "pkg:deb/ubuntu/golang-github-go-git-go-git?arch=source&distro=esm-apps%2Fresolute",
"ecosystem": "Ubuntu:Pro:26.04:LTS"
},
"versions": [
"5.14.0-1",
"5.16.2-1",
"5.16.2-1ubuntu0.1~esm1"
],
"database_specific": {
"source": "https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-71556.json"
},
"ecosystem_specific": {
"binaries": [
{
"binary_name": "go-git",
"binary_version": "5.16.2-1ubuntu0.1~esm1"
},
{
"binary_name": "golang-github-go-git-go-git-dev",
"binary_version": "5.16.2-1ubuntu0.1~esm1"
}
]
}
}
],
"modified": "2026-10-17T13:00:47.013426011Z",
"provider": "osv",
"upstream": [
"CVE-2026-71556"
],
"references": [
"https://ubuntu.com/security/CVE-2026-71556",
"https://www.cve.org/CVERecord?id=CVE-2026-71556",
"https://github.com/go-git/go-git/commit/008a78f2dd86f52544ddff8b8e8ddeecdf3f7aab",
"https://github.com/go-git/go-git/commit/661d1c7f101d34e002a3cfcf8dbea5b7421d07ac",
"https://github.com/go-git/go-git/releases/tag/v5.19.2",
"https://github.com/go-git/go-git/releases/tag/v6.0.0-alpha.5",
"https://github.com/go-git/go-git/security/advisories/GHSA-hc8v-wwc9-vgxm"
]
},
"related_cves": [
{
"value": "CVE-2026-71556",
"evidence": "/upstream"
}
],
"security_relevant": true,
"severity_evidence": "/severity/0/score"
},
"source_id": "core-osv",
"document_id": 360833,
"published_at": "2026-08-07T17:17:00+00:00"
}