Vulnerability · Published Oct 22, 2026 · Assigned by VulnCheck

CVE-2026-115372Incus 7.3.0 before 7.5.0 Project Restriction Bypass via block.create_options

High 8.5

In plain English

A high-severity argument injection in incus from lxc. There are no confirmed reports of exploitation so far. The chance it is exploited in the next 30 days is estimated at 0.4% (higher than 30% of all known vulnerabilities). Fixed versions are available - upgrade the affected package.

Severity (CVSS 3.1)8.5High

Exploit odds (30 days)0.4%top 69.9% of all CVEs

Exploited in the wildNo reportsCISA SSVC: none

Attack toolingNoneno public tooling known

Official description

Incus from 7.3.0 before 7.5.0 contains a project restriction bypass that allows restricted project users to set block.create_options through volume update, copy, and move operations. Attackers can set the option on a custom volume and trigger a copy or move onto a formatting pool to inject arguments into mkfs executed as root.

Affected packages & fixed versions

Ecosystem	Package	Fixed in	Advisory
Debian:13	incus	6.0.4-2+deb13u11	DEBIAN-CVE-2026-115372
Debian:14	incus	7.0.1-5	DEBIAN-CVE-2026-115372
Ubuntu:26.10	incus	no fix listed	UBUNTU-CVE-2026-115372

Affected products (as reported)

Vendor	Product	Versions
lxc	incus	7.3.0 – before 7.5.0

Weakness: CWE-88 · Vector: CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:C/C:H/I:H/A:H

References

GitHub Security Advisory (GHSA-4cph-ccqv-hm3c) vendor-advisory
VulnCheck Advisory: Incus 7.3.0 before 7.5.0 Project Restriction Bypass via block.create_options third-party-advisory