ALPINE-CVE-2026-47753

Source
https://security.alpinelinux.org/vuln/CVE-2026-47753
Import Source
https://storage.googleapis.com/cve-osv-conversion/alpine/ALPINE-CVE-2026-47753.json
JSON Data
https://api.osv.dev/v1/vulns/ALPINE-CVE-2026-47753
Upstream
Published
2026-08-21T15:16:40Z
Modified
2026-11-03T06:32:56Z
Severity
  • 4.4 (Medium) CVSS_V4 - CVSS:4.0/AV:L/AC:L/AT:P/PR:L/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:U/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X CVSS Calculator
Summary
[none]
Details

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.

References

Affected packages

Alpine:v3.24 / incus

Package

Name
incus
Purl
pkg:apk/alpine/incus?arch=source

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0 Unknown introduced version / All previous versions are affected
Fixed
7.0.1-r0

Database specific

source
"https://storage.googleapis.com/cve-osv-conversion/alpine/ALPINE-CVE-2026-47753.json"