Vulnerability · Published Oct 22, 2026 · Assigned by VulnCheck

CVE-2026-115378Incus before 6.0.7, 6.1.0 before 7.0.2, and 7.1.0 before 7.5.0 Arbitrary File Write via Recursive File Pull

Medium 5.8

In plain English

A medium-severity security flaw 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 0.3% (higher than 21% of all known vulnerabilities). Fixed versions are available - upgrade the affected package.

Severity (CVSS 3.1)5.8Medium

Exploit odds (30 days)0.3%top 78.7% of all CVEs

Exploited in the wildNo reportsCISA SSVC: none

Attack toolingNoneno public tooling known

Official description

Incus before 6.0.7, 6.1.0 before 7.0.2, and 7.1.0 before 7.5.0 contains an arbitrary file write vulnerability in sftpRecursivePullFile that allows a malicious incus-agent to escape the target directory during incus file pull -r. Attackers with root in a virtual machine can return duplicate entries reported first as symlinks then as files or directories, writing attacker-controlled files such as /etc/shadow on the operator's host.

Affected packages & fixed versions

Ecosystem	Package	Fixed in	Advisory
Debian:13	incus	no fix listed	DEBIAN-CVE-2026-115378
Debian:14	incus	7.0.1-5	DEBIAN-CVE-2026-115378
Ubuntu:26.10	incus	no fix listed	UBUNTU-CVE-2026-115378

Affected products (as reported)

Vendor	Product	Versions
lxc	incus	0 – before 6.0.76.1.0 – before 7.0.27.1.0 – before 7.5.0

Weakness: CWE-59 · Vector: CVSS:3.1/AV:N/AC:H/PR:L/UI:R/S:C/C:N/I:H/A:N

References

GitHub Security Advisory (GHSA-wfvq-qh87-gm4j) vendor-advisory
VulnCheck Advisory: Incus before 6.0.7, 6.1.0 before 7.0.2, and 7.1.0 before 7.5.0 Arbitrary File Write via Recursive File Pull third-party-advisory