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Fencer Intel
critical 9.9

CVE-2026-48752 json

Incus has arbitrary file read+write on host via templates/ symlink in malicious image

published 4mo ago modified 5d ago also EUVD-2026-63979 , GHSA-vxp5-584q-c479 , GO-2026-5803

cvss
9.9
version 3.1, CNA
cisa kev
Not listed
not in CISA's catalog
epss
0.8%
EPSS 0.8% chance of exploitation in 30 days, percentile 56%
public exploits
0
none known

Summary

Incus is a system container and virtual machine manager. Prior to version 7.2.0, a specially crafted image or instance backup can be used to read or create/write arbitrary files on the host; possibly leading to arbitrary command execution. Version 7.2.0 patches the issue.

Patch / fix

  • go github.com/lxc/incus/v7/cmd/incusd 7.2.0
  • go github.com/lxc/incus/v7 7.2.0
  • linuxcontainers incus 7.2.0
  • lxd Debian 13 5.0.2+git20231211.1364ae4-9+deb13u7
  • incus Debian 13 6.0.4-2+deb13u8
  • incus Debian 14 7.0.0-5

debian advisories DEBIAN-CVE-2026-48752

  • incus openSUSE Tumbleweed 7.4-1.1
  • govulncheck-vulndb openSUSE Leap 16.0 0.0.20260723T184607-160000.1.1

opensuse advisories openSUSE-SU-2026:11651-1openSUSE-SU-2026:21483-1

  • incus Alpine 3.24 7.0.1-r0

alpine advisories ALPINE-CVE-2026-48752

Alpine secdb © Alpine Linux, from https://secdb.alpinelinux.org via OSV; changed: normalised to fixed package versions per release. CC BY-SA 4.0

Is CVE-2026-48752 in your dependencies? Fencer shows which of your repositories are affected as soon as an advisory lands, and opens the fix as a pull request.

Check with Fencer

Vendor advisories

What the vendors themselves say about their products: affected, fixed or not affected, and what to do.

red hat product security vex CVE-2026-48752 updated cvss 9.9

incus: Incus has arbitrary file read+write on host via templates/ symlink in malicious image

  • Red Hat All currently supported Red Hat products
    not affected: vulnerable code not present

Red Hat CSAF VEX © Red Hat, Inc., from https://security.access.redhat.com/data/csaf/v2/vex/; changed: reduced to product statuses and remediations. CC BY 4.0 · csaf

CISA SSVC

Exploitation
none
Automatable
no
Technical impact
total
Assessed
2mo ago

Exploit prediction

0.78% chance of exploitation in the next 30 days, higher than 56% of all scored CVEs (FIRST EPSS, 2026-11-11).

Exploits and checks

  • github.com https://github.com/lxc/incus/security/advisories/GHSA-vxp5-584q-c479 referenced PoC, tagged "exploit" by a source, unverified

CVSS scores

assigned by version score vector
CNA 3.1 9.9 CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H
GitHub 3.1 9.9 CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H

Affected packages

ecosystem package affected fixed in
go github.com/lxc/incus/v7/cmd/incusd
<7.2.0
7.2.0
go github.com/lxc/incus
all versions
 no fix listed
go github.com/lxc/incus/v6
all versions
 no fix listed
go github.com/lxc/incus/v7
<7.2.0
7.2.0

Affected products

  • lxc incus
  • canonical lxd

Classification

Weakness
  • CWE-73 External Control of File Name or Path

References

Sources

Fencer Intel keeps one entry per vulnerability: the CVE id wins, then GHSA, and records that alias each other are merged, except that two CVEs always keep separate entries. The same data is available as JSON.

CPEs and fixed versions use Anchore's correction of NVD's data: Added CPE configurations because not yet analyzed by NVD.