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CVE-2026-48752· NVD / CVE Program· CNA GitHub_M

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

Noroxi assessment

Priority: Monitor (action score 39/100)

  • The sources we track (CISA KEV, Exploit-DB, Metasploit, Nuclei, GitHub) show no public exploit code or exploitation in the wild.
  • Probability of exploitation in the next 30 days: 0.73% (FIRST EPSS); higher than 53.2% of all records.
  • Anyone who can reach it over the internet can trigger it. A low-privileged account is enough. No user action is required. No special conditions are required; it is repeatable.
  • Fixed version: incus (Debian:13) 6.0.4-2+deb13u8; lxd (Debian:13) 5.0.2+git20231211.1364ae4-9+deb13u7; incus (Debian:14) 7.0.0-5.

Low priority for now. Upgrade to incus (Debian:13) 6.0.4-2+deb13u8; lxd (Debian:13) 5.0.2+git20231211.1364ae4-9+deb13u7; incus (Debian:14) 7.0.0-5 or later.

Generated automatically from the record's data: CVSS (NVD and CNA), CISA KEV and SSVC, FIRST EPSS, exploit sources, fixed versions. How we calculate it

Primary sources: NVD · CVE.org · FIRST EPSS

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.

CriticalCVSS 9.9 · v3.1—No exploit Fix available
Published
Aug 21, 2026
Updated
Oct 15, 2026
EPSS
0.7% · 53th percentile

Report tools

JSON

Action score

39

Monitor

Low priority for now.

CVSS
39 / 40 · 9.9 / 10
CISA KEV
0 / 30 · Not listed
EPSS
0 / 30 · 0.7%

CISA SSVC decision

Exploitation
none
Automatable
no
Technical impact
total

Vulnrichment: CISA's decision-tree inputs.

CNA vs NVD score

NVD
—
CNA · GitHub_M
9.9
NVD has not scored this yet; the score shown is the CNA’s.

The score given by the assigning authority versus NVD’s independent score. A gap means the severity is contested.

Get told when this record changes

  • Not in KEV: no record of exploitation in the wild
  • No public exploit code on record
  • A fix has been released

If any of these changes, we'll tell you in the daily email digest.

Follow CVE-2026-48752

When you'll hear from us

  • when it enters CISA KEV
  • when exploit code appears or is weaponized
  • when the record is updated (including a fixed version)
  • when EPSS rises 20 points in a week

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Noroxi analysis

What does it mean in your environment?

The assessment above is generated automatically from the record's data; it doesn't know your environment. Our team verifies on your systems whether this vulnerability is actually exploitable and which mitigation is enough.

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Affected systems

Is your version affected?

Pick the product and type the version you run. It's compared with this record's version ranges in your browser; the version isn't sent anywhere.

—

Versions reported by the vendor

Affected version ranges reported by the assigning authority (GitHub_M). Independent of NVD's CPE analysis and usually ahead of it.

  • lxc incus

    • < 7.2.0affected

Package-level exposure

OSV and GitHub Advisory data: ecosystem, package and range. SBOM matching uses this table.

EcosystemPackageAffected rangeFix
Debian:12lxdall versions—
Debian:13incusbefore 6.0.4-2+deb13u86.0.4-2+deb13u8
Debian:13lxdbefore 5.0.2+git20231211.1364ae4-9+deb13u75.0.2+git20231211.1364ae4-9+deb13u7
Debian:14incusbefore 7.0.0-57.0.0-5
Gogithub.com/lxc/incusall versions—
Gogithub.com/lxc/incus/v6all versions—
Gogithub.com/lxc/incus/v7before 7.2.07.2.0
Gogithub.com/lxc/incus/v7/cmd/incusdbefore 7.2.07.2.0
openSUSE:Tumbleweedincusbefore 7.4-1.17.4-1.1

Same product

lxc: all records

Other highest-scoring records for the same primary product.

  • CVE-2026-63343Arbitrary File Read/Write: metadata.yaml symlink in image allows host filesystem access as root
    39Monitor
  • CVE-2026-63125Incus vulnerable to root RCE via image backup.yaml symlink
    39Monitor
  • CVE-2026-62941Incus: Cross-project instance copy bypasses target project restrictions via TOCTOU in config merge
    39Monitor
  • CVE-2026-62940Incus has a project restriction bypass via instance migration config override
    39Monitor
  • CVE-2026-62867Incus has an argument injection in storage volume block.create_options that leads to arbitrary command execution
    39Monitor
  • CVE-2026-48769Incus has an arbitrary file write on its client due to trusted image hash
    39Monitor

Remediation

Which version to upgrade to

Fix versions compiled from the vendor, package registries and Microsoft. Verify the vendor's note before upgrading.

Product / packageFixed versionSource
debian:incus6.0.4-2+deb13u8 · Debian:13Package registry (OSV)
debian:lxd5.0.2+git20231211.1364ae4-9+deb13u7 · Debian:13Package registry (OSV)
Go:github.com/lxc/incus/v77.2.0Package registry (OSV)
Go:github.com/lxc/incus/v7/cmd/incusd7.2.0Package registry (OSV)
opensuse:incus7.4-1.1 · openSUSE:TumbleweedPackage registry (OSV)

Exploit status

No known public exploit

No public exploit has been observed yet. That doesn't mean you're safe, only that the bar is a little higher.

Research context

For pentesters and researchers: attack profile, score disagreement, timeline, patch commits, credits, variant and chain candidates, bug bounty scope. All derived from existing data; no exploit code.

Timeline

From publication to today: proof of concept, Metasploit module, CISA KEV and fix record. Dates are as reported by the sources.

No dated events beyond publication.

EPSS, last 120 days

FIRST EPSS daily score; only changes of 0.01 or more are recorded (step chart).

Patch and commit links

Commit, PR and diff links among the references. A starting point for patch-diffing and variant hunting; fixes, not exploits.

No commit or PR link among the references.

Credits

All researchers

Finders, reporters and analysts named in the CNA record. Click a name for that researcher’s other records.

No credits in the CNA record.

Variant candidates

Same product, same weakness class, within 18 months. If the patch missed the root cause, the sibling bug is here.

  • CVE-2026-487490 days apartIncus has an arbitrary file read+write on host via rootfs/ symlink in malicious image
    39Monitor
  • CVE-2026-487500 days apartIncus has an arbitrary file write on host via `exec-output` symlink in crafted image
    39Monitor
  • CVE-2026-487530 days apartIncus has an arbitrary file write via path traversal in S3 multipart upload
    39Monitor
  • CVE-2026-633430 days apartArbitrary File Read/Write: metadata.yaml symlink in image allows host filesystem access as root
    39Monitor

Chain candidates

An authentication bypass and a privilege-requiring bug in the same product, published close together: combined they may become an unauthenticated path.

—

Bug bounty scope

No known public program.

Source: bounty-targets-data (public HackerOne, Bugcrowd, Intigriti, YesWeHack listings).

Technical details

Attack conditions

  • Anyone who can reach it over the internet can trigger it.
  • A low-privileged account is enough.
  • No user action is required.
  • No special conditions are required; it is repeatable.

If successful

Confidentiality
high · data can be read
Integrity
high · data or configuration can be modified
Availability
high · the service can be disrupted

Impact can extend beyond the vulnerable component (scope changes).

Attack vector
Network
Attack complexity
Low
Privileges required
Low
User interaction
None
Scope
Changed
Confidentiality impact
High
Integrity impact
High
Availability impact
High

Weakness class (CWE)

CWE-73 · External Control of File Name or Path

CVSS vector

CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H

nvd-secondary

Attack context

MITRE CAPEC attack patterns and ATT&CK techniques for this weakness class (CWE). A starting point for detection rules and threat hunting.

Change log

  1. Fix✗ → ✓

For records you follow, these changes also arrive as notifications. →

References

Vendor advisories and official records. Exploit/PoC links are deliberately left out.

All records