DEBIAN-CVE-2026-79775
rclone versions >= v1.72.0 and <= v1.74.4 (fixed in v1.75.0) contain multiple denial-of-service vulnerabilities in the archive backend's SquashFS parser, which relies on the github.com/diskfs/go-diskfs dependency. The parser fails to validate attacker-controlled superblock and metadata values before use. An attacker who can place or modify a SquashFS image in storage exposed through an rclone :archive: remote can craft a malicious image that triggers an integer division-by-zero panic (zero block size), an out-of-bounds slice panic (out-of-range inode metadata offset), or a non-progress CPU loop (truncated metadata stream). Variants 1 and 2 terminate the rclone process and, via 'rclone serve sftp', can crash the entire SFTP server; variant 3 causes sustained CPU consumption. Parsing is lazy, so a victim or remote client must address or descend into the malicious archive object to trigger it.
DEBIAN-CVE-2026-79775
Primary source · Revision 1
Imported from structured advisory data. Source references identify upstream records or fields; verify affected versions and your deployed configuration.
Security context
Source reference: osv:DEBIAN-CVE-2026-79775
rclone
Source reference: /affected/0/package/name
- Affected versions
- 1.60.1+dfsg-2
Source reference:
/affected/0/versions1.60.1+dfsg-3Source reference:
/affected/0/versions1.60.1+dfsg-4Source reference:
/affected/0/versions1.65.0+dfsg-1Source reference:
/affected/0/versions1.65.0+dfsg-2Source reference:
/affected/0/versions1.69.3+dfsg-1Source reference:
/affected/0/versions1.69.3+dfsg-2Source reference:
/affected/0/versions1.69.3+dfsg-3Source reference:
/affected/0/versions - Fixed versions
- Not stated in this record
- Prerequisites
- Not stated in this record
rclone
Source reference: /affected/1/package/name
- Affected versions
- 1.60.1+dfsg-4
Source reference:
/affected/1/versions1.65.0+dfsg-1Source reference:
/affected/1/versions1.65.0+dfsg-2Source reference:
/affected/1/versions1.69.3+dfsg-1Source reference:
/affected/1/versions1.69.3+dfsg-2Source reference:
/affected/1/versions1.69.3+dfsg-3Source reference:
/affected/1/versions - Fixed versions
- Not stated in this record
- Prerequisites
- Not stated in this record
Structured affected-version data
Original package identities and version rules from this source.
[
{
"ranges": [
{
"type": "ECOSYSTEM",
"events": [
{
"introduced": "0"
}
]
}
],
"package": {
"name": "rclone",
"purl": "pkg:deb/debian/rclone?arch=source&distro=bookworm",
"ecosystem": "Debian:12"
},
"versions": [
"1.60.1+dfsg-2",
"1.60.1+dfsg-3",
"1.60.1+dfsg-4",
"1.65.0+dfsg-1",
"1.65.0+dfsg-2",
"1.69.3+dfsg-1",
"1.69.3+dfsg-2",
"1.69.3+dfsg-3"
],
"database_specific": {
"source": "https://storage.googleapis.com/debian-osv/debian-cve-osv/DEBIAN-CVE-2026-79775.json"
},
"ecosystem_specific": {
"urgency": "not yet assigned"
}
},
{
"ranges": [
{
"type": "ECOSYSTEM",
"events": [
{
"introduced": "0"
}
]
}
],
"package": {
"name": "rclone",
"purl": "pkg:deb/debian/rclone?arch=source&distro=trixie",
"ecosystem": "Debian:13"
},
"versions": [
"1.60.1+dfsg-4",
"1.65.0+dfsg-1",
"1.65.0+dfsg-2",
"1.69.3+dfsg-1",
"1.69.3+dfsg-2",
"1.69.3+dfsg-3"
],
"database_specific": {
"source": "https://storage.googleapis.com/debian-osv/debian-cve-osv/DEBIAN-CVE-2026-79775.json"
},
"ecosystem_specific": {
"urgency": "not yet assigned"
}
}
]Publisher severity
No explicit severity was provided.
- Event
- #58201 · Revision 1
- Added to Heist Feed
- Publisher date