Medium
rclone — security advisory
rclone before v1.75.0 contains a denial of service vulnerability in the WebDAV TUS creation handler that dereferences a nil response before checking for transport errors. A malicious or compromised configured endpoint can reset connections during TUS uploads to trigger a panic that terminates unrecovered goroutines and halts unrelated work in long-lived processes.
- Products
- rclone
- Affected versions
- 1.36-3, 1.36-3ubuntu0.1, 1.36-3ubuntu0.2, 1.47.0+ex1-6, 1.47.0+ex1-7, 1.49.5-2, 1.49.5-3, 1.50.2-2, 1.50.2-2ubuntu0.1, 1.50.2-2ubuntu0.2, 1.50.2-2ubuntu0.2+esm1, 1.53.3-1, 1.53.3-2, 1.53.3-4, 1.53.3-4ubuntu1, 1.53.3-4ubuntu1.22.04.1, 1.53.3-4ubuntu1.22.04.2, 1.53.3-4ubuntu1.22.04.3, 1.53.3-4ubuntu1.22.04.3+esm1, 1.53.3-4ubuntu1.22.04.4, 1.53.3-4ubuntu1.22.04.4+esm1, 1.53.3-4ubuntu1.22.04.5, 1.53.3-4ubuntu1.22.04.5+esm1, 1.60.1+dfsg-2build1, 1.60.1+dfsg-3, 1.60.1+dfsg-3ubuntu0.24.04.1, 1.60.1+dfsg-3ubuntu0.24.04.2, 1.60.1+dfsg-3ubuntu0.24.04.3, 1.60.1+dfsg-3ubuntu0.24.04.4, 1.60.1+dfsg-3ubuntu0.24.04.4+esm1, 1.60.1+dfsg-3ubuntu0.24.04.5, 1.60.1+dfsg-3ubuntu0.24.04.5+esm1, 1.60.1+dfsg-3ubuntu0.24.04.6, 1.60.1+dfsg-3ubuntu0.24.04.6+esm1, 1.60.1+dfsg-4ubuntu2, 1.60.1+dfsg-4ubuntu3, 1.60.1+dfsg-4ubuntu3.1, 1.60.1+dfsg-4ubuntu3.1+esm1, 1.60.1+dfsg-4ubuntu3.2, 1.60.1+dfsg-4ubuntu3.2+esm1, 1.69.3+dfsg-3, 1.69.3+dfsg-3ubuntu1
- Fixed versions
- Not specified
- CVEs
- CVE-2026-79778
- Confirmed fixed CVEs
- Not specified
- Updated in this feed
- 31 Oct 2026, 03:19 UTC · Revision 1
Source evidence
rclone before v1.75.0 contains a denial of service vulnerability in the WebDAV TUS creation handler that dereferences a nil response before checking for transport errors. A malicious or compromised configured endpoint can reset connections during TUS uploads to trigger a panic that terminates unrecovered goroutines and halts unrelated work in long-lived processes.
osv:UBUNTU-CVE-2026-79778
rclone
Fixed versions: Not specified
rclone
Fixed versions: Not specified
rclone
Fixed versions: Not specified
rclone
Fixed versions: Not specified
rclone
Fixed versions: Not specified
rclone
Fixed versions: Not specified
Complete source record
{
"id": "ad3c5e0d0c93f67005709e58d86ca875dc417d05d1e1c30a70c70745aee4d7e0",
"url": "https://osv.dev/vulnerability/UBUNTU-CVE-2026-79778",
"method": "structured",
"payload": {
"kind": "advisory",
"title": "UBUNTU-CVE-2026-79778",
"summary": "rclone before v1.75.0 contains a denial of service vulnerability in the WebDAV TUS creation handler that dereferences a nil response before checking for transport errors. A malicious or compromised configured endpoint can reset connections during TUS uploads to trigger a panic that terminates unrecovered goroutines and halts unrelated work in long-lived processes.",
"evidence": "osv:UBUNTU-CVE-2026-79778",
"products": [
{
"name": {
"value": "rclone",
"evidence": "/affected/0/package/name"
},
"prerequisites": [],
"fixed_versions": [],
"affected_versions": [
{
"value": "1.36-3",
"evidence": "/affected/0/versions"
},
{
"value": "1.36-3ubuntu0.1",
"evidence": "/affected/0/versions"
},
{
"value": "1.36-3ubuntu0.2",
"evidence": "/affected/0/versions"
}
]
},
{
"name": {
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"evidence": "/affected/1/package/name"
},
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"affected_versions": [
{
"value": "1.47.0+ex1-6",
"evidence": "/affected/1/versions"
},
{
"value": "1.47.0+ex1-7",
"evidence": "/affected/1/versions"
},
{
"value": "1.49.5-2",
"evidence": "/affected/1/versions"
},
{
"value": "1.49.5-3",
"evidence": "/affected/1/versions"
},
{
"value": "1.50.2-2",
"evidence": "/affected/1/versions"
},
{
"value": "1.50.2-2ubuntu0.1",
"evidence": "/affected/1/versions"
},
{
"value": "1.50.2-2ubuntu0.2",
"evidence": "/affected/1/versions"
},
{
"value": "1.50.2-2ubuntu0.2+esm1",
"evidence": "/affected/1/versions"
}
]
},
{
"name": {
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"evidence": "/affected/2/package/name"
},
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"affected_versions": [
{
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"evidence": "/affected/2/versions"
},
{
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"evidence": "/affected/2/versions"
},
{
"value": "1.53.3-4",
"evidence": "/affected/2/versions"
},
{
"value": "1.53.3-4ubuntu1",
"evidence": "/affected/2/versions"
},
{
"value": "1.53.3-4ubuntu1.22.04.1",
"evidence": "/affected/2/versions"
},
{
"value": "1.53.3-4ubuntu1.22.04.2",
"evidence": "/affected/2/versions"
},
{
"value": "1.53.3-4ubuntu1.22.04.3",
"evidence": "/affected/2/versions"
},
{
"value": "1.53.3-4ubuntu1.22.04.3+esm1",
"evidence": "/affected/2/versions"
},
{
"value": "1.53.3-4ubuntu1.22.04.4",
"evidence": "/affected/2/versions"
},
{
"value": "1.53.3-4ubuntu1.22.04.4+esm1",
"evidence": "/affected/2/versions"
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{
"value": "1.53.3-4ubuntu1.22.04.5",
"evidence": "/affected/2/versions"
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{
"value": "1.53.3-4ubuntu1.22.04.5+esm1",
"evidence": "/affected/2/versions"
}
]
},
{
"name": {
"value": "rclone",
"evidence": "/affected/3/package/name"
},
"prerequisites": [],
"fixed_versions": [],
"affected_versions": [
{
"value": "1.60.1+dfsg-2build1",
"evidence": "/affected/3/versions"
},
{
"value": "1.60.1+dfsg-3",
"evidence": "/affected/3/versions"
},
{
"value": "1.60.1+dfsg-3ubuntu0.24.04.1",
"evidence": "/affected/3/versions"
},
{
"value": "1.60.1+dfsg-3ubuntu0.24.04.2",
"evidence": "/affected/3/versions"
},
{
"value": "1.60.1+dfsg-3ubuntu0.24.04.3",
"evidence": "/affected/3/versions"
},
{
"value": "1.60.1+dfsg-3ubuntu0.24.04.4",
"evidence": "/affected/3/versions"
},
{
"value": "1.60.1+dfsg-3ubuntu0.24.04.4+esm1",
"evidence": "/affected/3/versions"
},
{
"value": "1.60.1+dfsg-3ubuntu0.24.04.5",
"evidence": "/affected/3/versions"
},
{
"value": "1.60.1+dfsg-3ubuntu0.24.04.5+esm1",
"evidence": "/affected/3/versions"
},
{
"value": "1.60.1+dfsg-3ubuntu0.24.04.6",
"evidence": "/affected/3/versions"
},
{
"value": "1.60.1+dfsg-3ubuntu0.24.04.6+esm1",
"evidence": "/affected/3/versions"
}
]
},
{
"name": {
"value": "rclone",
"evidence": "/affected/4/package/name"
},
"prerequisites": [],
"fixed_versions": [],
"affected_versions": [
{
"value": "1.60.1+dfsg-4ubuntu3",
"evidence": "/affected/4/versions"
},
{
"value": "1.69.3+dfsg-3",
"evidence": "/affected/4/versions"
},
{
"value": "1.69.3+dfsg-3ubuntu1",
"evidence": "/affected/4/versions"
}
]
},
{
"name": {
"value": "rclone",
"evidence": "/affected/5/package/name"
},
"prerequisites": [],
"fixed_versions": [],
"affected_versions": [
{
"value": "1.60.1+dfsg-4ubuntu2",
"evidence": "/affected/5/versions"
},
{
"value": "1.60.1+dfsg-4ubuntu3",
"evidence": "/affected/5/versions"
},
{
"value": "1.60.1+dfsg-4ubuntu3.1",
"evidence": "/affected/5/versions"
},
{
"value": "1.60.1+dfsg-4ubuntu3.1+esm1",
"evidence": "/affected/5/versions"
},
{
"value": "1.60.1+dfsg-4ubuntu3.2",
"evidence": "/affected/5/versions"
},
{
"value": "1.60.1+dfsg-4ubuntu3.2+esm1",
"evidence": "/affected/5/versions"
}
]
}
],
"severity": "medium",
"structured": {
"id": "UBUNTU-CVE-2026-79778",
"aliases": [
"UBUNTU-CVE-2026-79778"
],
"metrics": [
{
"type": "CVSS_V3",
"score": "CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:U/C:N/I:N/A:H"
},
{
"type": "CVSS_V4",
"score": "CVSS:4.0/AV:N/AC:H/AT:P/PR:N/UI:P/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N"
},
{
"type": "Ubuntu",
"score": "medium"
}
],
"affected": [
{
"ranges": [
{
"type": "ECOSYSTEM",
"events": [
{
"introduced": "0"
}
]
}
],
"package": {
"name": "rclone",
"purl": "pkg:deb/ubuntu/rclone?arch=source&distro=bionic",
"ecosystem": "Ubuntu:18.04:LTS"
},
"versions": [
"1.36-3",
"1.36-3ubuntu0.1",
"1.36-3ubuntu0.2"
],
"database_specific": {
"source": "https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-79778.json"
},
"ecosystem_specific": {
"binaries": [
{
"binary_name": "golang-github-ncw-rclone-dev",
"binary_version": "1.36-3ubuntu0.2"
},
{
"binary_name": "rclone",
"binary_version": "1.36-3ubuntu0.2"
}
]
}
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{
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}
]
}
],
"package": {
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"purl": "pkg:deb/ubuntu/rclone?arch=source&distro=esm-apps%2Ffocal",
"ecosystem": "Ubuntu:Pro:20.04:LTS"
},
"versions": [
"1.47.0+ex1-6",
"1.47.0+ex1-7",
"1.49.5-2",
"1.49.5-3",
"1.50.2-2",
"1.50.2-2ubuntu0.1",
"1.50.2-2ubuntu0.2",
"1.50.2-2ubuntu0.2+esm1"
],
"database_specific": {
"source": "https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-79778.json"
},
"ecosystem_specific": {
"binaries": [
{
"binary_name": "golang-github-rclone-rclone-dev",
"binary_version": "1.50.2-2ubuntu0.2+esm1"
},
{
"binary_name": "rclone",
"binary_version": "1.50.2-2ubuntu0.2+esm1"
}
]
}
},
{
"ranges": [
{
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{
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}
]
}
],
"package": {
"name": "rclone",
"purl": "pkg:deb/ubuntu/rclone?arch=source&distro=esm-apps%2Fjammy",
"ecosystem": "Ubuntu:Pro:22.04:LTS"
},
"versions": [
"1.53.3-1",
"1.53.3-2",
"1.53.3-4",
"1.53.3-4ubuntu1",
"1.53.3-4ubuntu1.22.04.1",
"1.53.3-4ubuntu1.22.04.2",
"1.53.3-4ubuntu1.22.04.3",
"1.53.3-4ubuntu1.22.04.3+esm1",
"1.53.3-4ubuntu1.22.04.4",
"1.53.3-4ubuntu1.22.04.4+esm1",
"1.53.3-4ubuntu1.22.04.5",
"1.53.3-4ubuntu1.22.04.5+esm1"
],
"database_specific": {
"source": "https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-79778.json"
},
"ecosystem_specific": {
"binaries": [
{
"binary_name": "golang-github-rclone-rclone-dev",
"binary_version": "1.53.3-4ubuntu1.22.04.5+esm1"
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{
"binary_name": "rclone",
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{
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{
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],
"package": {
"name": "rclone",
"purl": "pkg:deb/ubuntu/rclone?arch=source&distro=esm-apps%2Fnoble",
"ecosystem": "Ubuntu:Pro:24.04:LTS"
},
"versions": [
"1.60.1+dfsg-2build1",
"1.60.1+dfsg-3",
"1.60.1+dfsg-3ubuntu0.24.04.1",
"1.60.1+dfsg-3ubuntu0.24.04.2",
"1.60.1+dfsg-3ubuntu0.24.04.3",
"1.60.1+dfsg-3ubuntu0.24.04.4",
"1.60.1+dfsg-3ubuntu0.24.04.4+esm1",
"1.60.1+dfsg-3ubuntu0.24.04.5",
"1.60.1+dfsg-3ubuntu0.24.04.5+esm1",
"1.60.1+dfsg-3ubuntu0.24.04.6",
"1.60.1+dfsg-3ubuntu0.24.04.6+esm1"
],
"database_specific": {
"source": "https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-79778.json"
},
"ecosystem_specific": {
"binaries": [
{
"binary_name": "golang-github-rclone-rclone-dev",
"binary_version": "1.60.1+dfsg-3ubuntu0.24.04.6+esm1"
},
{
"binary_name": "rclone",
"binary_version": "1.60.1+dfsg-3ubuntu0.24.04.6+esm1"
}
]
}
},
{
"ranges": [
{
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{
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}
]
}
],
"package": {
"name": "rclone",
"purl": "pkg:deb/ubuntu/rclone?arch=source&distro=stonking",
"ecosystem": "Ubuntu:26.10"
},
"versions": [
"1.60.1+dfsg-4ubuntu3",
"1.69.3+dfsg-3",
"1.69.3+dfsg-3ubuntu1"
],
"database_specific": {
"source": "https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-79778.json"
},
"ecosystem_specific": {
"binaries": [
{
"binary_name": "golang-github-rclone-rclone-dev",
"binary_version": "1.69.3+dfsg-3ubuntu1"
},
{
"binary_name": "rclone",
"binary_version": "1.69.3+dfsg-3ubuntu1"
}
]
}
},
{
"ranges": [
{
"type": "ECOSYSTEM",
"events": [
{
"introduced": "0"
}
]
}
],
"package": {
"name": "rclone",
"purl": "pkg:deb/ubuntu/rclone?arch=source&distro=esm-apps%2Fresolute",
"ecosystem": "Ubuntu:Pro:26.04:LTS"
},
"versions": [
"1.60.1+dfsg-4ubuntu2",
"1.60.1+dfsg-4ubuntu3",
"1.60.1+dfsg-4ubuntu3.1",
"1.60.1+dfsg-4ubuntu3.1+esm1",
"1.60.1+dfsg-4ubuntu3.2",
"1.60.1+dfsg-4ubuntu3.2+esm1"
],
"database_specific": {
"source": "https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-79778.json"
},
"ecosystem_specific": {
"binaries": [
{
"binary_name": "golang-github-rclone-rclone-dev",
"binary_version": "1.60.1+dfsg-4ubuntu3.2+esm1"
},
{
"binary_name": "rclone",
"binary_version": "1.60.1+dfsg-4ubuntu3.2+esm1"
}
]
}
}
],
"modified": "2026-10-17T13:01:09.818043744Z",
"provider": "osv",
"upstream": [
"CVE-2026-79778"
],
"references": [
"https://ubuntu.com/security/CVE-2026-79778",
"https://www.cve.org/CVERecord?id=CVE-2026-79778",
"https://github.com/rclone/rclone/security/advisories/GHSA-3x6r-wxxg-53vv"
]
},
"related_cves": [
{
"value": "CVE-2026-79778",
"evidence": "/upstream"
}
],
"security_relevant": true,
"severity_evidence": "/severity/1/score"
},
"source_id": "core-osv",
"document_id": 361101,
"published_at": "2026-08-25T16:17:00+00:00"
}