Permissions Flaw in Edgeless Systems Contrast Software
CVE-2026-109358

8.5HIGH

Key Information:

Vendor

Edgelesssys

Status
Contrast
Vendor
CVE Published:
12 October 2026

What is CVE-2026-109358?

Edgeless Systems Contrast version 1.8.0 prior to 1.24.1 presents an issue where the node installer sets the containerd configuration file with world-writable permissions (0666). This misconfiguration allows local unprivileged users to modify the configuration of containerd, potentially leading to privilege escalation attacks. Malicious actors can exploit this flaw to alter critical settings, such as overwriting the runc location, which can compromise the security integrity of the system.

Affected Version(s)

contrast 1.8.0 < 1.24.1

contrast 1.24.1

References

https://github.com/edgelesssys/contrast/security/advisori...
vendor-advisory
https://www.vulncheck.com/advisories/edgeless-systems-con...
third-party-advisory

CVSS V4

Score:
8.5
Severity:
HIGH
Confidentiality:
High
Integrity:
High
Availability:
High
Attack Vector:
Local
Attack Complexity:
Low
Attack Required:
None
Privileges Required:
Undefined
User Interaction:
None

Timeline

  • Vulnerability published

  • Vulnerability Reserved

Credit

rechard-edward
B1ueD0g
muhammad-usama-sardar
burgerdev
sespiros
.