Is CVE-2026-35527 actively exploited?

No active exploitation of CVE-2026-35527 has been confirmed so far. Continue monitoring, as exploit status can change.

Can CVE-2026-35527 be exploited remotely?

Yes. CVE-2026-35527 is exploitable remotely over the network (CVSS attack vector: Network).

What is the CVSS score of CVE-2026-35527?

CVE-2026-35527 has a CVSS score of 5.0 (MEDIUM).

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MEDIUM

CVE-2026-35527

CWE-918Published: May 5, 2026· Updated: May 7, 2026

5.0

CVSS v3.1

EPSS:0.04%probability of exploitation in 30 daysPercentile:11.3th

Official Description

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.

NVD Source

Technical Analysis

CVE-2026-35527 can be exploited remotely over the network without requiring physical or adjacent access, significantly expanding the attack surface for threat actors.

Exploitation requires low privileges, which limits the exposure to scenarios where an attacker has already gained initial access.

The vulnerability has a "Changed" scope, meaning successful exploitation can impact components beyond the vulnerable component itself — such as the host operating system or adjacent services.