Security Vulnerabilities
libexpat 2.7.2 through 2.9.0 contains a denial of service vulnerability because XML_ParserReset zeroes the direct byte count but never offsets tracked heap allocations. Attackers can submit a large XML document so later documents on the same reset parser fail with XML_ERROR_NO_MEMORY until it is recreated.
CVSS Score
8.2
EPSS Score
0.005
Published
2026-10-20
A privacy issue was addressed with improved checks. This issue is fixed in macOS Golden Gate 27. An app may be able to access sensitive user data.
CVSS Score
5.5
EPSS Score
0.002
Published
2026-10-20
An out-of-bounds write issue was addressed with improved bounds checking. This issue is fixed in macOS Sequoia 15.8, macOS Tahoe 26.7. An app may be able to cause unexpected system termination.
CVSS Score
5.5
EPSS Score
0.001
Published
2026-10-20
An authorization issue was addressed with improved state management. This issue is fixed in iOS 27 and iPadOS 27, macOS Golden Gate 27. An app may be able to access sensitive user data.
CVSS Score
5.5
EPSS Score
0.001
Published
2026-10-20
An authorization issue was addressed with improved network restrictions. This issue is fixed in iOS 27 and iPadOS 27. An app may be able to initiate calls or send messages.
CVSS Score
7.5
EPSS Score
0.003
Published
2026-10-20
A denial-of-service issue was addressed with improved input validation. This issue is fixed in iOS 26.7 and iPadOS 26.7, iOS 27 and iPadOS 27. An attacker in a privileged network position may be able to cause a denial-of-service.
CVSS Score
5.9
EPSS Score
0.003
Published
2026-10-20
An out-of-bounds read was addressed with improved bounds checking. This issue is fixed in iOS 27 and iPadOS 27, macOS Golden Gate 27, tvOS 27, visionOS 27, watchOS 27. Processing a maliciously crafted image may lead to unexpected process termination.
CVSS Score
4.3
EPSS Score
0.003
Published
2026-10-20
This issue was addressed by removing the vulnerable code. This issue is fixed in macOS Golden Gate 27. An app may be able to disclose kernel memory.
CVSS Score
5.5
EPSS Score
0.001
Published
2026-10-20
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.
CVSS Score
8.8
EPSS Score
0.001
Published
2026-10-20
This issue was addressed by enforcing library validation on the affected binaries. This issue is fixed in Xcode 27. A malicious app may be able to break out of its sandbox.
CVSS Score
8.8
EPSS Score
0.002
Published
2026-10-20