CVE-2026-65393: A permissions issue was addressed with improved validation

Q: How do I fix CVE-2026-65393?

xcode: upgrade to 27.0; macos: upgrade to 27.0. Exact commands for each OS are on this page.

Q: Is CVE-2026-65393 being exploited?

CVE-2026-65393 is not on the CISA Known Exploited Vulnerabilities list at the time of the last update. Check again, as this can change.

Q: What does CVE-2026-65393 affect?

CVE-2026-65393 affects xcode, macos. Severity is medium (CVSS 5.5). A permissions issue was addressed with improved validation. This issue is fixed in Xcode 27, macOS Golden Gate 27. An app may be able to access user-sensitive data.

Q: How urgent is CVE-2026-65393?

Priority 20/100. No elevated risk signals yet.

Routine

MEDIUM 5.5UPGRADEUPGRADE

CVE-2026-65393 is a medium-severity flaw (CVSS 5.5) affecting xcode, macos. Below: why it ranks where it does, which versions are affected, what to do, and the exact commands.

A permissions issue was addressed with improved validation. This issue is fixed in Xcode 27, macOS Golden Gate 27. An app may be able to access user-sensitive data.

Why this priority

No elevated risk signals yet

A fixed release or distro patch exists.

Risk facts

CVSS score	5.5 (Medium)
Attack vector	Local
Attack complexity	Low
Privileges needed	None
User interaction	Required
EPSS exploit chance	0.2% (top 95%)
CISA exploited list	No
Weakness	CWE-863
Published	2026-09-14
Last modified	2026-09-22

Publisher (CNA): Apple Inc. · Vendor: apple

Last updated 2026-09-22 · Sources: CVE Program, NVD, CISA KEV, EPSS and vendor advisories · How we score

Am I affected?

Timeline

2026-09-14 21:17 UTCPublished CVE record published
2026-09-22 21:17 UTCUpdated Record last modified

apple xcode UPGRADE

Affected: < 27.0

Fixed in: 27.0

Safe to downgrade to: no unaffected older release

1. Check installed version

apt-cache policy xcode || rpm -q xcode || xcode --version

2. UPGRADE to 27.0 (Debian / Ubuntu)

sudo apt update && sudo apt install --only-upgrade xcode

2. UPGRADE (RHEL / Amazon Linux / Fedora)

sudo dnf upgrade xcode

Note

Distros often backport fixes without changing the version number. Confirm with the distro advisory or changelog.

apple macos UPGRADE

Affected: < 27.0

Fixed in: 27.0

Safe to downgrade to: no unaffected older release

Check your OS release

cat /etc/os-release; uname -r

Debian / Ubuntu

sudo apt update && sudo apt full-upgrade

RHEL / Amazon Linux / Fedora

sudo dnf upgrade --refresh

Windows

Install the latest cumulative update from Windows Update

If no patch exists yet

OS downgrades are not safe. Apply the vendor mitigation from the advisory and restrict exposure.

Verify at the official source NVD · CVE Program · Report a problem with this page
Scores and fixes here are computed automatically from those and other public sources. Confirm with the vendor advisory before changing production systems.

Quick answers

How do I fix CVE-2026-65393?

xcode: upgrade to 27.0; macos: upgrade to 27.0. Exact commands for each OS are on this page.

Is CVE-2026-65393 being exploited?

CVE-2026-65393 is not on the CISA Known Exploited Vulnerabilities list at the time of the last update. Check again, as this can change.

What does CVE-2026-65393 affect?

CVE-2026-65393 affects xcode, macos. Severity is medium (CVSS 5.5). A permissions issue was addressed with improved validation. This issue is fixed in Xcode 27, macOS Golden Gate 27. An app may be able to access user-sensitive data.

How urgent is CVE-2026-65393?

Priority 20/100. No elevated risk signals yet.

Software pages

macOS vulnerabilities

References

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