What is CVE-2026-109358?

CVE-2026-109358 is a high-severity vulnerability in Edgelesssys Contrast, classified under Incorrect Permission Assignment for Critical Resource. CVSS score: 7.8/10. Published 2026-10-12.

How severe is CVE-2026-109358?

High severity. CVSS v3 base score is 7.8 out of 10.

Vulnerability in Edgelesssys Contrast

CVE-2026-109358

Edgeless Systems Contrast 1.8.0 before 1.24.1 contains an incorrect permissions vulnerability where the node installer writes the containerd config world-writable (0666). Local unprivileged users on the node can modify the containerd config, for example overwriting the runc location, to escalate privileges.

Published 2026-10-12.

CVSS v3 metric

CVSS v3 base score 7.8 (High). Vector: CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H.

EPSS exploit prediction

No EPSS score from FIRST.org yet. New CVEs usually get one within a few days; no score means no signal yet, not low risk. How EPSS works.

Affected products

Edgelesssys Contrast

Weakness classification (CWE)

CWE-732 — Incorrect Permission Assignment for Critical Resource

References

github.com/edgelesssys/contrast/security/advisories/GHSA-376m-h37w-4rvq (vendor-advisory)
www.vulncheck.com/advisories/edgeless-systems-contrast-1.8.0-before-1.24.1-worl… (third-party-advisory)

Frequently asked questions

What is CVE-2026-109358?: CVE-2026-109358 is a high-severity vulnerability in Edgelesssys Contrast, classified under Incorrect Permission Assignment for Critical Resource. CVSS score: 7.8/10. Published 2026-10-12.
How severe is CVE-2026-109358?: High severity. CVSS v3 base score is 7.8 out of 10.