CVE-2026-28860

HighCVSS 7.5

Published: 11/05/2026(UTC)Updated: 26/10/2026(UTC)Translated: 15/06/2026(UTC)NVD NIST

Exploitation Probability (EPSS)

Low risk

0.38%

32th percentile - higher than 32% of all known CVEs

Summary

The issue was addressed with improved input validation. Local attacks may lead to modification of the Keychain state.

Risk Assessment

An attacker may gain access to sensitive data stored in the Keychain, potentially leading to serious security breaches.

Recommendation

It is recommended to update systems to the latest versions to mitigate this threat.

Other vulnerabilities in Keychain

CVE-2026-86905Medium
This issue was addressed by removing the vulnerable code. This issue is fixed in iOS 27 and iPadOS 27, macOS Golden Gate 27, visionOS 27. An app may be able to delete credentials stored in Keychain.

Original NVD description (English source)

The issue was addressed with improved input validation. This issue is fixed in iOS 18.7.7 and iPadOS 18.7.7, iOS 26.4 and iPadOS 26.4, macOS Sequoia 15.7.5, macOS Sonoma 14.8.5, macOS Tahoe 26.4, tvOS 26.4, visionOS 26.4, watchOS 26.4. A local attacker may be able to modify the state of the Keychain.

Vulnerability data from NVD (NIST) · CISA KEV · EPSS