What is CVE-2026-20685?

CVE-2026-20685 is a medium-severity vulnerability in Apple Private_cloud_compute, classified under Improper Input Validation. CVSS score: 6.5/10. Published 2026-05-18.

How severe is CVE-2026-20685?

Medium severity. CVSS v3 base score is 6.5 out of 10.

Path Traversal in Apple Private_cloud_compute

CVE-2026-20685

An attacker in a privileged network position may be able to leak sensitive information. A path handling issue was addressed with improved validation. This issue is fixed in PCC Release 5E290.3.

Vulnerability class: Drupalgeddon 2 (CVE-2018-7600)

EPSS: 0.002 (9.3th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 6.5 (Medium). Vector: CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N.

Affected products

Apple Private_cloud_compute
Apple Private Cloud Compute Server Software — versions 0

Weakness classification (CWE)

CWE-20 — Improper Input Validation
CWE-22 — Path Traversal

References

product-security@apple.com (Release Notes)

Frequently asked questions

What is CVE-2026-20685?: CVE-2026-20685 is a medium-severity vulnerability in Apple Private_cloud_compute, classified under Improper Input Validation. CVSS score: 6.5/10. Published 2026-05-18.
How severe is CVE-2026-20685?: Medium severity. CVSS v3 base score is 6.5 out of 10.