High
rsync < 3.5.0 Path Traversal via Symlink Module Root
Type: advisorySources: OSV
rsync before 3.5.0 contains a path traversal vulnerability that allows remote clients to access files outside the intended module root when use chroot is disabled and the module root path or a component of it is a symlink. The daemon calls chdir() to the module root at session initialization without resolving symlinks via realpath() or equivalent, causing subsequent relative-path operations to reference files relative to the symlink target rather than the intended module root, enabling unauthorized file access.
- Products
- Not specified
- Affected versions
- Not specified
- Fixed versions
- Not specified
- CVEs
- CVE-2026-53784
- Confirmed fixed CVEs
- Not specified
- Updated in this feed
- 4 Nov 2026, 18:46 UTC · Revision 1
Source evidence
rsync < 3.5.0 Path Traversal via Symlink Module Root
core-osv · Original sourcePublished 13 Aug 2026, 14:34 UTC
rsync before 3.5.0 contains a path traversal vulnerability that allows remote clients to access files outside the intended module root when use chroot is disabled and the module root path or a component of it is a symlink. The daemon calls chdir() to the module root at session initialization without resolving symlinks via realpath() or equivalent, causing subsequent relative-path operations to reference files relative to the symlink target rather than the intended module root, enabling unauthorized file access.
osv:CVE-2026-53784
Complete source record
{
"id": "939b85ce535e5e7054903c338384e2bbfa79afe4be87d7b37508a5780fb88c6f",
"url": "https://osv.dev/vulnerability/CVE-2026-53784",
"method": "structured",
"payload": {
"kind": "advisory",
"title": "rsync < 3.5.0 Path Traversal via Symlink Module Root",
"summary": "rsync before 3.5.0 contains a path traversal vulnerability that allows remote clients to access files outside the intended module root when use chroot is disabled and the module root path or a component of it is a symlink. The daemon calls chdir() to the module root at session initialization without resolving symlinks via realpath() or equivalent, causing subsequent relative-path operations to reference files relative to the symlink target rather than the intended module root, enabling unauthorized file access.",
"evidence": "osv:CVE-2026-53784",
"products": [],
"severity": "high",
"structured": {
"id": "CVE-2026-53784",
"aliases": [
"CVE-2026-53784",
"GHSA-ffg2-fr5g-3rxw"
],
"metrics": [
{
"type": "CVSS_V4",
"score": "CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:N/SC:N/SI:N/SA:N"
}
],
"affected": [
{
"ranges": [
{
"repo": "https://git.samba.org/rsync.git/",
"type": "GIT",
"events": [
{
"introduced": "0"
},
{
"fixed": "471e17dc0d68233db84db11be82c9f62f4661214"
}
],
"database_specific": {
"extracted_events": [
{
"cpe": "cpe:2.3:a:samba:rsync:*:*:*:*:*:*:*:*",
"range": [
{
"introduced": "0"
},
{
"fixed": "3.5.0"
}
],
"source": "CPE_RANGE"
}
]
}
},
{
"repo": "https://github.com/rsyncproject/rsync",
"type": "GIT",
"events": [
{
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},
{
"fixed": "471e17dc0d68233db84db11be82c9f62f4661214"
}
],
"database_specific": {
"extracted_events": [
{
"cpe": "cpe:2.3:a:samba:rsync:*:*:*:*:*:*:*:*",
"range": [
{
"introduced": "0"
},
{
"fixed": "3.5.0"
}
],
"source": "CPE_RANGE"
},
{
"range": [
{
"fixed": "471e17dc0d68233db84db11be82c9f62f4661214"
}
],
"source": "REFERENCES_TAG",
"original_tag": "v3.5.0"
}
]
}
}
],
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"v3.0.0",
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"v3.0.0pre9",
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"v2.6.9pre3",
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"v2.6.2",
"v2.6.2pre1",
"v2.6.1",
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"v2.5.0",
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"mbp_bk_export0",
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],
"database_specific": {
"source": "https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-53784.json"
}
}
],
"modified": "2026-10-28T02:30:38.318694661Z",
"provider": "osv",
"references": [
"https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/53xxx/CVE-2026-53784.json",
"https://github.com/RsyncProject/rsync/releases/tag/v3.5.0",
"https://github.com/RsyncProject/rsync/security/advisories/GHSA-ffg2-fr5g-3rxw",
"https://nvd.nist.gov/vuln/detail/CVE-2026-53784",
"https://www.vulncheck.com/advisories/rsync-path-traversal-via-symlink-module-root",
"https://github.com/RsyncProject/rsync"
],
"provider_metadata": {
"cwe_ids": [
"CWE-59"
],
"cna_assigner": "VulnCheck",
"osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/53xxx/CVE-2026-53784.json"
}
},
"related_cves": [
{
"value": "CVE-2026-53784",
"evidence": "/id"
}
],
"security_relevant": true,
"severity_evidence": "/severity/0/score"
},
"source_id": "core-osv",
"document_id": 505835,
"published_at": "2026-08-13T14:34:22.543+00:00"
}