DEBIAN-CVE-2026-35527
Incus is an open source container and virtual machine manager. In versions prior to 7.0.0, the image import flow issues an outbound HEAD request to a user-supplied URL before validating the request against project restrictions such as restricted.images.servers. The imgPostURLInfo function constructs and sends a HEAD request directly from the attacker-supplied source URL to resolve image metadata, and this network interaction occurs before the flow reaches the point where the import would be rejected by policy. Although the actual image download is blocked by the project restriction, an authenticated user can coerce the daemon into making blind HEAD requests to arbitrary destinations. These requests include server metadata in custom headers (Incus-Server-Architectures, Incus-Server-Version), which discloses information about the host environment to the attacker-controlled endpoint. This blind SSRF primitive can be used to probe internal services, unroutable address space, or cloud metadata endpoints reachable from the host. This vulnerability pattern is similar to CVE-2026-24767. This issue has been fixed in version 7.0.0.
DEBIAN-CVE-2026-35527
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-2026-35527
incus
Source reference: /affected/0/package/name
- Affected versions
- 6.0.4-2
Source reference:
/affected/0/versions6.0.4-3Source reference:
/affected/0/versions6.0.5-1Source reference:
/affected/0/versions6.0.5-2Source reference:
/affected/0/versions6.0.5-3Source reference:
/affected/0/versions6.0.5-4Source reference:
/affected/0/versions6.0.5-5Source reference:
/affected/0/versions6.0.5-6Source reference:
/affected/0/versions6.0.5-7Source reference:
/affected/0/versions6.0.5-8Source reference:
/affected/0/versions6.0.6-1Source reference:
/affected/0/versions6.0.6-2Source reference:
/affected/0/versions6.0.6-3Source reference:
/affected/0/versions6.14.0-1~exp1Source reference:
/affected/0/versions6.15.0-1~exp1Source reference:
/affected/0/versions6.16.0-1~exp1Source reference:
/affected/0/versions6.17.0-1~exp1Source reference:
/affected/0/versions6.20.0-1~exp1Source reference:
/affected/0/versions6.21.0-1~exp1Source reference:
/affected/0/versions6.22.0-1~exp1Source reference:
/affected/0/versions6.23.0-1~exp1Source reference:
/affected/0/versions7.0.0-1~bpo13+1Source reference:
/affected/0/versions - Fixed versions
- 7.0.0-1
Source reference:
/affected/0/ranges - 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"
},
{
"fixed": "7.0.0-1"
}
]
}
],
"package": {
"name": "incus",
"purl": "pkg:deb/debian/incus?arch=source&distro=forky",
"ecosystem": "Debian:14"
},
"versions": [
"6.0.4-2",
"6.0.4-3",
"6.0.5-1",
"6.0.5-2",
"6.0.5-3",
"6.0.5-4",
"6.0.5-5",
"6.0.5-6",
"6.0.5-7",
"6.0.5-8",
"6.0.6-1",
"6.0.6-2",
"6.0.6-3",
"6.14.0-1~exp1",
"6.15.0-1~exp1",
"6.16.0-1~exp1",
"6.17.0-1~exp1",
"6.20.0-1~exp1",
"6.21.0-1~exp1",
"6.22.0-1~exp1",
"6.23.0-1~exp1",
"7.0.0-1~bpo13+1"
],
"database_specific": {
"source": "https://storage.googleapis.com/debian-osv/debian-cve-osv/DEBIAN-CVE-2026-35527.json"
},
"ecosystem_specific": {
"urgency": "not yet assigned"
}
}
]Publisher severity
No explicit severity was provided.
- Event
- #57546 · Revision 1
- Added to Heist Feed
- Publisher date