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)

Published · last modified .

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.

EPSS exploit prediction

EPSS: 0.003 (18.0th percentile), scored .

Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 18th percentile — 18.0% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.

EPSS trend (30 days)EPSS over the last 30 days for CVE-2026-20685: held from 0.002 to 0.003.

EPSS over last 30 days · oldest: 0.002 · newest: 0.003 · change: +0.001

Affected products

Weakness classification (CWE)

Public proof-of-concept exploits

References

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.
Is CVE-2026-20685 known to be exploited?
1 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.