Security readout for executives and security teams
Plain-English summary
Incus versions before 7.3.0 let a project-scoped user manipulate a storage setting so a root-run filesystem command receives attacker-controlled arguments. Successful abuse can result in arbitrary command execution with severe confidentiality, integrity, and availability impact.
Executive priority
Treat as an immediate patching priority for multi-tenant or delegated Incus environments. Low-privileged project access can cross into root execution, creating potential full-host impact. Environments without such users remain affected by version but may have lower immediate exposure.
Technical view
Improper validation of storage volume block.create_options causes argument injection in a filesystem creation command executed as root. The issue is classified as CWE-88 and carries CVSS 3.1 score 9.9: network-accessible, low complexity, low privileges, no user interaction, and changed scope.
Likely exposure
Exposure is limited to Incus versions earlier than 7.3.0. Practical risk is highest where untrusted or compromised project-scoped users can supply block.create_options in storage volume configuration. The bundle does not identify affected deployment defaults or additional prerequisites.
Exploitation context
The provided sources support root-level arbitrary command execution by a project-scoped user. They do not establish anonymous exploitation or active exploitation in the wild. The CVE is not identified as being in KEV, and the bundle provides no public-exploit evidence.
Researcher notes
The trust-boundary failure occurs when user-controlled block.create_options is incorporated into a root-executed filesystem command without adequate validation. Scope changed in the CVSS vector reflects escalation beyond the project boundary. The supplied evidence does not detail affected filesystems, payload constraints, detection indicators, or exploit availability.
Mitigation direction
- Upgrade affected Incus installations to version 7.3.0 or later.
- Prioritize systems accessible to untrusted or externally managed project-scoped users.
- Until upgraded, restrict untrusted project-scoped access where operationally feasible.
- Check the vendor advisory for any additional supported mitigation guidance.
Validation and detection
- Inventory Incus installations and identify versions earlier than 7.3.0.
- Identify project-scoped users able to configure storage volumes.
- Review storage volume configurations for unexpected block.create_options values.
- Confirm upgraded systems report Incus 7.3.0 or later.
- Review relevant administrative and system logs for suspicious storage-volume activity.
Public sources used
Generated from the cited source records. This long-tail analysis has not been individually reviewed by a named human.
Conservative CVE-to-ATT&CK context
These mappings and lookup hints may be relevant to the vulnerability behavior, CWE, affected product, or exposure path. Glexia-inferred context is not an official MITRE, ATT&CK, CWE, or CVE Program mapping.
ATT&CK lookup starting points
Use these exact CWE pages and searches to review the Glexia ATT&CK library from this CVE's weakness and description context.
CWE-88: Command execution behavior lookup
Command injection weaknesses can lead defenders to review execution techniques and command interpreter telemetry. Open the exact CWE lookup page first, then review the ATT&CK searches from that MITRE weakness context. This is a Glexia lookup hint, not an official ATT&CK mapping.
Open ATT&CK lookupContainer behavior lookup
The affected technology mentions containers, so container-specific ATT&CK technique review may help. This is a Glexia inferred lookup path, not an official MITRE, ATT&CK, or CVE Program mapping.
Open ATT&CK lookupCVE-2026-62867 mapping review
Open the CVE-to-ATT&CK bridge for reviewed, inferred, or future official mappings tied to this CVE.
Open ATT&CK lookup- Severity
- Critical
- CVSS
- 9.9 (3.1)
- Known Exploited
- No
- Published
Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H
CNA and ADP enrichment extracted from CVE v5
These fields come from the CVE record and ADP containers, not from Glexia's Take. They preserve time-varying source decisions such as CISA SSVC, KEV status, CVSS metrics, and provider references.
SSVC decision data
CVSS vector scores
1 official scoreWe collect every scored CVSS vector available in the official CNA and ADP containers. When more than one version is present, the table keeps the source vectors side by side instead of collapsing them into the highest score.
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H3.16GitHub_MVulnerability scoring details
Base CVSS 3.1 score
9.9CriticalVector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H
Vulnerability timeline
Timeline events are normalized from CVE metadata, CNA source timelines, ADP timelines, and KEV metadata when present.
- CVE reservedCVE Program
The CVE ID was reserved by the assigning CNA.
- CVE publishedCVE Program
The CVE record was published.
- CVE updatedCVE Program
The CVE record metadata indicates this as the latest update time.
ADP provider summaries
Source materials
- CVE List V5 sourceCVE List V5
- https://github.com/lxc/incus/security/advisories/GHSA-q7xw-r4w2-2wcmCVE reference, GitHub_M · x_refsource_CONFIRM
Products and packages named in the record
CWE details
CWE links open Glexia weakness intelligence pages with official CWE context, developer remediation guidance, and related CVE mappings.
Improper Neutralization of Argument Delimiters in a Command
Improper Neutralization of Argument Delimiters in a Command represents a recurring weakness pattern that can create exploitable paths when design, validation, or implementation controls are missing.