CVE-2026-55621

Incus has a project restriction bypass for custom volume copy across projects

publishedCWE-284

Incus is a system container and virtual machine manager. Prior to version 7.2.0, missing authorization checks exist for custom volume copying where an attacker knowing the name of a project that they don't have access to and the name of a custom volume in that project can copy the custom volume to a new project. This issue could allow an attacker to access secrets in custom volumes they are not authorized to access. Version 7.2.0 patches the issue.

Technical severity7.7 highCVSS 3.1 · CNA: GitHub_M

Published2026-08-21Source updated 2026-11-05

Collected2026-11-053 attributed sources

Fixes and workarounds

Fix

github.com/lxc/incus/v7 (Go): OSV reports a fixed version 7.2.0. Check the advisory for supported release branches.

Source: OSV GHSA-64f3-v33m-w89f

Affected products and versions

Affected products, source version ranges and reporting authorities
Product	Versions	Authority
incus lxc	< 7.2.0 (affected)	CNA: GitHub_M
github.com/lxc/incus/v7 `github.com/lxc/incus/v7` Go	≥ 0; < 7.2.0 (affected, semver); OSV events: introduced 0; fixed 7.2.0 Source events (semver) `[ { "introduced": "0" }, { "fixed": "7.2.0" } ]` Other versions: unaffected	OSV GHSA-64f3-v33m-w89f
github.com/lxc/incus/v6 `github.com/lxc/incus/v6` Go	≥ 0; ≤ 6.23.0 (affected, semver); OSV events: introduced 0; last affected 6.23.0 Source events (semver) `[ { "introduced": "0" }, { "last_affected": "6.23.0" } ]` Other versions: unaffected	OSV GHSA-64f3-v33m-w89f
github.com/lxc/incus `github.com/lxc/incus` Go	≥ 0; ≤ 0.7.0 (affected, semver); OSV events: introduced 0; last affected 0.7.0 Source events (semver) `[ { "introduced": "0" }, { "last_affected": "0.7.0" } ]` Other versions: unaffected	OSV GHSA-64f3-v33m-w89f

Version ranges are source assertions. Check the vendor advisory and your installed configuration before determining exposure.

CVSS assessments

CVSS scores, vectors and reporting authorities
Version / score	Vector	Authority
3.1 / 7.7 high	`CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:N/A:N`	CNA: GitHub_M

Exploit evidence

No exploit evidence in collected sources. This is not proof of no exploitation.

References

https://github.com/lxc/incus/security/advisories/GHSA-64f3-v33m-w89fCNA: GitHub_M · x_refsource_CONFIRM
https://github.com/canonical/lxd/security/advisories/GHSA-7mr3-28h5-m5vxCNA: GitHub_M · x_refsource_MISC
https://github.com/lxc/incus/commit/2e01078366e2653712719dec82318e51c6d21b28CNA: GitHub_M · x_refsource_MISC
https://github.com/lxc/incus/releases/tag/v7.2.0CNA: GitHub_M · x_refsource_MISC
https://github.com/advisories/GHSA-64f3-v33m-w89fOSV / GitHub Security Advisories · advisory
https://osv.dev/vulnerability/GHSA-64f3-v33m-w89fOSV / GitHub Security Advisories · osv

Prioritization

CISA known exploited vulnerabilities

No KEV listing in collected sources. This does not establish that exploitation is absent.

EPSS

0.34% estimated probability of exploitation in the next 30 days; percentile 27.68.
Assessed 2026-11-05 by FIRST.

SSVC

Exploitation: none
Automatable: no
Technical impact: partial

ADP: CISA-ADP · 2026-08-21

Provenance

CNA: GitHub_M
Source updated 2026-11-05
Retrieved 2026-11-05

OSV / GitHub Security Advisories (partial: 1/2 referenced advisories verified)
Source updated 2026-11-05
Retrieved 2026-11-05

FIRST EPSS
Source updated Not reported
Retrieved 2026-11-05

Disclosure revision
72134ce2727a020c451775f71107fc0535b7c5c35b5af88607b7554a2f2ff07f

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