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Vulnerability details: VCID-4eyp-2xve-qugd
Vulnerability ID VCID-4eyp-2xve-qugd
Aliases CVE-2026-40226
Summary In nspawn in systemd 233 through 259 before 260, an escape-to-host action can occur via a crafted optional config file.
Status Published
Exploitability 0.5
Weighted Severity 0.0
Risk None
Affected and Fixed Packages Package Details
Weaknesses (1)
CWE-348 Use of Less Trusted Source
System Score Found at
cvssv3 6.4 https://access.redhat.com/hydra/rest/securitydata/cve/CVE-2026-40226.json
epss 6e-05 https://api.first.org/data/v1/epss?cve=CVE-2026-40226
epss 6e-05 https://api.first.org/data/v1/epss?cve=CVE-2026-40226
epss 6e-05 https://api.first.org/data/v1/epss?cve=CVE-2026-40226
cvssv3.1 6.4 https://ftp.suse.com/pub/projects/security/yaml/suse-cvss-scores.yaml
Reference id Reference type URL
https://access.redhat.com/hydra/rest/securitydata/cve/CVE-2026-40226.json
https://api.first.org/data/v1/epss?cve=CVE-2026-40226
https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2026-40226
https://ftp.suse.com/pub/projects/security/yaml/suse-cvss-scores.yaml
2457326 https://bugzilla.redhat.com/show_bug.cgi?id=2457326
No exploits are available.
Vector: CVSS:3.1/AV:L/AC:H/PR:H/UI:N/S:U/C:H/I:H/A:H Found at https://access.redhat.com/hydra/rest/securitydata/cve/CVE-2026-40226.json
Attack Vector (AV) Attack Complexity (AC) Privileges Required (PR) User Interaction (UI) Scope (S) Confidentiality Impact (C) Integrity Impact (I) Availability Impact (A)

network

adjacent_network

local

physical

low

high

none

low

high

none

required

unchanged

changed

high

low

none

high

low

none

high

low

none
Vector: CVSS:3.1/AV:L/AC:H/PR:H/UI:N/S:U/C:H/I:H/A:H Found at https://ftp.suse.com/pub/projects/security/yaml/suse-cvss-scores.yaml
Attack Vector (AV) Attack Complexity (AC) Privileges Required (PR) User Interaction (UI) Scope (S) Confidentiality Impact (C) Integrity Impact (I) Availability Impact (A)

network

adjacent_network

local

physical

low

high

none

low

high

none

required

unchanged

changed

high

low

none

high

low

none

high

low

none
Exploit Prediction Scoring System (EPSS)
Percentile 0.00379
EPSS Score 6e-05
Published At April 11, 2026, 12:55 p.m.
Date Actor Action Source VulnerableCode Version
2026-04-11T17:11:27.947695+00:00 Debian Oval Importer Import https://www.debian.org/security/oval/oval-definitions-bullseye.xml.bz2 38.3.0