This issue was addressed by enforcing library validation on the affected binaries.

published 2026-10-20 20 d ago modified 2026-10-30 9 d ago also EUVD-2026-104728

cvss: 7.8; version 3.1, CNA
cisa kev: Not listed; not in CISA's catalog
epss: 0.1%; EPSS 0.1% chance of exploitation in 30 days, percentile 3%
public exploits: 0; none known

This issue was addressed by enforcing library validation on the affected binaries. This issue is fixed in Xcode 27. An app may be able to break out of its sandbox.

Patch / fix

fixed in 1

Apple Xcode 27

CISA SSVC

Exploitation: none
Automatable: no
Technical impact: total
Assessed: 19 d ago (2026-10-21)

Exploit prediction

0.14% chance of exploitation in the next 30 days, higher than 3% of all scored CVEs (FIRST EPSS, 2026-11-08).

CVSS scores

assigned by	version	score	vector
CISA ADP	3.1	7.8	CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
NVD	3.1	8.8	CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H
CNA	3.1	7.8	CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

Affected products

Apple Xcode

Classification

Weakness

CWE-693 Protection Mechanism Failure
CWE-284 Improper Access Control
CWE-829 Inclusion of Functionality from Untrusted Control Sphere

References

support.apple.com /en-us/149040
release-notes, vendor-advisory

Sources

CVE List CVE-2026-86948
NVD CVE-2026-86948

Fencer Vulns keeps one entry per vulnerability: the CVE id wins, then GHSA, and records that alias each other are merged, except that two CVEs always keep separate entries. The same data is available as JSON.

Summary