CVE-2026-23954 is a critical directory traversal and symbolic link vulnerability affecting Incus versions 6.21.0 and below, a system container and virtual machine manager. An authenticated attacker with container launch privileges can exploit this flaw to achieve arbitrary file read and write on the host system, ultimately leading to arbitrary command execution. With a CVSS score of 8.7 (HIGH), this vulnerability has a low attack complexity and requires only local network access and low privileges to exploit, with a severe impact on confidentiality and integrity. While there is no evidence of active exploitation, public exploit code, or KEV listing, the vulnerability has garnered some community discussion and media coverage, indicating awareness within the security community.
| Vendor | Product | Version(s) | CPE |
|---|---|---|---|
<= 6.0.5CPE matchmatch criteria | cpe:2.3:a:linuxcontainers:incus:*:*:*:*:*:*:*:* | ||
>= 6.1.0, < 6.21.0CPE matchmatch criteria | cpe:2.3:a:linuxcontainers:incus:*:*:*:*:*:*:*:* |
CVSS version used by this source: 3.1
CVSS:3.1/AV:A/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:N
The average CVE in this peer group has 0.0 Twitter, 0.1 Reddit, 0.2 Bluesky, 0.1 Mastodon, and 0.2 GitHub mentions.
The average CVE in this peer group has 0.3 InfoSec Media, 0.0 Vendor Blog, and 0.0 Security Researcher mentions.