How severe is GHSA-56mx-8g9f-5crf?

No CVSS score has been assigned to GHSA-56mx-8g9f-5crf yet. Review the advisory details and affected package list to assess your exposure.

Which packages are affected by GHSA-56mx-8g9f-5crf?

GHSA-56mx-8g9f-5crf affects the following packages: github.com/lxc/incus/v6 (Go). Ecosystems affected: Go.

How do I fix GHSA-56mx-8g9f-5crf?

Update github.com/lxc/incus/v6 to 6.19.0 or later, then make sure no transitive (indirect) dependency still pins the vulnerable range — O3 confirms GHSA-56mx-8g9f-5crf is resolved across your whole dependency graph.

How do I detect GHSA-56mx-8g9f-5crf in my Go dependencies?

Scan your dependency tree (package-lock.json, pnpm-lock.yaml, requirements.txt, go.sum, etc.) for github.com/lxc/incus/v6, including transitive dependencies — a direct dependency you never call can still pull in a vulnerable version.

How do I mitigate GHSA-56mx-8g9f-5crf if there is no patch (or I can't update yet)?

Close the privilege gap rather than the entry point: audit which accounts, roles and service identities can reach the affected operation, drop the component to the least privilege it actually needs, and review file and directory permissions created by earlier installs — a default left in place is what makes this reachable.

Is GHSA-56mx-8g9f-5crf actively exploited in the wild?

No public exploit code has been indexed for GHSA-56mx-8g9f-5crf yet. This does not mean the vulnerability cannot be exploited — absence of public exploits does not imply safety. Apply the recommended fix and use O3 Security to monitor your exposure.

What is the EPSS score for GHSA-56mx-8g9f-5crf?

GHSA-56mx-8g9f-5crf has an EPSS (Exploit Prediction Scoring System) score of 0.2%, placing it in the 7th percentile of all CVEs. EPSS is maintained by FIRST.org and estimates the probability that a vulnerability will be exploited in the wild within the next 30 days. This score indicates relatively lower exploitation probability, though the CVSS severity should still guide your patching priority.

What type of vulnerability is GHSA-56mx-8g9f-5crf?

GHSA-56mx-8g9f-5crf is classified as Improper Privilege Management (CWE-269). This weakness type describe the underlying flaw category, which helps determine the potential impact and the right class of mitigation.

When was GHSA-56mx-8g9f-5crf published, and has it been updated?

GHSA-56mx-8g9f-5crf was published on November 13, 2025 and was last updated on March 30, 2026. Advisory data evolves as severity scores, affected ranges, and exploit intelligence are revised — always check the latest version of the advisory before acting.

🐹 Go

Not in CISA KEV

Incus vulnerable to local privilege escalation through custom storage volumesGHSA-56mx-8g9f-5crf

Fix: lxc/incus#2642

GHSA-56mx-8g9f-5crf is a Improper Privilege Management vulnerability in github.com/lxc/incus/v6. A fix is available for github.com/lxc/incus/v6 — see the affected versions and patch details below.

Also known asCVE-2025-64507GO-2025-4115

Published

Nov 13, 2025

Updated

Mar 30, 2026

Affected

1 pkg

Patched

1 / 1

Exploits

None indexed

Exploitation data as of Nov 7, 2026 · OSV.dev, NVD, FIRST.org (EPSS)

Exploitation Status

Proof-of-concept exploit code exists

CISA’s SSVC triage found public proof-of-concept exploit code for this CVE, though no confirmed active exploitation.
A successful exploit gives an attacker total control of the affected component, not partial access.

Exploitation and automatability from CISA’s SSVC triage for GHSA-56mx-8g9f-5crf.

EPSS Exploitation Probability

via FIRST.org ↗

0.2%probability of exploitation in next 30 days

Lower Risk0.00%

Lower risk than most CVEs7th percentile — riskier than 7% of all scored CVEsHighest risk

Probability of exploitation in the next 30 days, from FIRST.org EPSS.

Real-World Exposure

1 pkg affected

🐹github.com/lxc/incus/v6

Real-time download stats are indexed for npm and PyPI packages. This vulnerability affects Go packages — download data is not available via public APIs for these ecosystems.

Description

Impact

This affects any Incus user in an environment where an unprivileged user may have root access to a container with an attached custom storage volume that has the security.shifted property set to true as well as access to the host as an unprivileged user.

The most common case for this would be systems using incus-user with the less privileged incus group to provide unprivileged users with an isolated restricted access to Incus. Such users may be able to create a custom storage volume with the necessary property (depending on kernel and filesystem support) and can then write a setuid binary from within the container which can be executed as an unpriivleged user on the host to gain root privileges.

Patches

A patch for this issue is available here: https://github.com/lxc/incus/pull/2642

The first commit changes the permissions for any new storage pool, the second commit applies it on startup to all existing storage pools.

Workarounds

Permissions can be manually restricted until a patched version of Incus is deployed.

This is done with:

chmod 0700 /var/lib/incus/storage-pools/*/*
chmod 0711 /var/lib/incus/storage-pools/*/buckets*
chmod 0711 /var/lib/incus/storage-pools/*/container*

Those are the same permissions which will be applied by the patched Incus for both new and existing storage pools.

References

This was reported publicly on Github by here: https://github.com/lxc/incus/issues/2641

Affected Packages

1 total 1 fixed

Ecosystem	Package	Vulnerable range	Fix
🐹Go	`github.com/lxc/incus/v6`	all versions	6.19.0`go get github.com/lxc/incus/v6@v6.19.0`

Affected Products

1 product · 2 configurations

Application

incuslinuxcontainers

≥ 6.1.0 && < 6.19.0

range

Detection & mitigation playbook

Open-source dependency

Detect
Scan your dependency tree (package-lock.json, pnpm-lock.yaml, requirements.txt, go.sum, etc.) for github.com/lxc/incus/v6, including transitive dependencies — a direct dependency you never call can still pull in a vulnerable version.
Fix
Update github.com/lxc/incus/v6 to 6.19.0 or later, then make sure no transitive (indirect) dependency still pins the vulnerable range — O3 confirms GHSA-56mx-8g9f-5crf is resolved across your whole dependency graph.
Workarounds
Close the privilege gap rather than the entry point: audit which accounts, roles and service identities can reach the affected operation, drop the component to the least privilege it actually needs, and review file and directory permissions created by earlier installs — a default left in place is what makes this reachable.

Frequently Asked Questions

### Impact This affects any Incus user in an environment where an unprivileged user may have root access to a container with an attached custom storage volume that has the `security.shifted` property set to `true` as well as access to the host as an unprivileged user. The most common case for this would be systems using `incus-user` with the less privileged `incus` group to provide unprivileged users with an isolated restricted access to Incus. Such users may be able to create a custom storage volume with the necessary property (depending on kernel and filesystem support) and can then write a

O3 Security · Impact-Aware SCA

Is GHSA-56mx-8g9f-5crf in your dependencies?

Find it across Go, including transitive dependencies.

Scan my dependencies How O3 SCA works