SEPTEMBER 18, 2026
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Case File

CVE-2026-47753

MEDIUM · CVSS 4.4 EPSS 0.14% Public Exploit

Source: NVD + CISA KEV + EPSS · Published 2026-08-21 · Last synced 2026-09-18

CyberRota Analysis

AI-Generated

The vulnerability affects the Incus system container and virtual machine manager, specifically in the `CreateInstanceFromBackup` function, which can be exploited by authenticated users to trigger a nil-pointer dereference via a crafted backup tarball. This results in a denial of service, causing the Incus daemon to crash and impacting all projects on the affected cluster member. Organizations using versions prior to 7.1.0 should prioritize patching to mitigate this risk.

Public Exploit Signal

A public exploit, PoC, GitHub repository or Metasploit reference was detected for this CVE.

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CVE
CVE-2026-47753
Severity
MEDIUM
CVSS
4.4
EPSS
0.14%

Original NVD Description

Incus is a system container and virtual machine manager. Prior to version 7.1.0, `(*backend).CreateInstanceFromBackup` in `internal/server/storage/backend.go` contains a nil-pointer dereference that an authenticated user with permission to create instances in any project can trigger remotely by uploading a crafted backup tarball. The Incus daemon panics and the process crashes, causing denial of service to every project on that cluster member. This is a sibling of `GHSA-fwj8-62r8-8p8m`, `GHSA-r7w7-mmxr-47r9`, and `GHSA-x5r6-jr56-89pv` (all assigned 2026-05-04). Those patches added guards on adjacent fields of the same `backup/config.Config` struct; the `Volume` field on the instance-import path was missed. Version 7.1.0 contains an updated patch.