CVE-2026-43708

MEDIUM
Published Jun 29, 2026 Modified Jun 30, 2026 CWE-20

Description

The issue was addressed with improved input validation. This issue is fixed in Safari 26.5.2, iOS 26.5.2 and iPadOS 26.5.2, macOS Tahoe 26.5.2. A malicious website may exfiltrate data cross-origin.

CVSS v3.1 Score

4.3
MEDIUM
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:L/I:N/A:N

EPSS — Exploit Prediction

0.0021
Probability of exploitation
0.11%
Percentile rank

EPSS estimates the probability that this vulnerability will be exploited in the wild within the next 30 days. A higher score means more likely to be exploited.

Weakness Type (CWE)

CWE-20 Improper Input Validation

Affected Products

Vendor Product
apple safari
apple ipados
apple iphone_os
apple macos

References

Frequently Asked Questions

What is CVE-2026-43708? +
The issue was addressed with improved input validation. This issue is fixed in Safari 26.5.2, iOS 26.5.2 and iPadOS 26.5.2, macOS Tahoe 26.5.2. A malicious website may exfiltrate data cross-origin. It has a CVSS v3.1 base score of 4.3 (MEDIUM).
How severe is CVE-2026-43708? +
CVE-2026-43708 has a CVSS v3.1 score of 4.3 out of 10, rated MEDIUM. This is a medium-severity vulnerability that should be remediated as part of regular maintenance. The EPSS score is 0.0021, placing it in the 0th percentile for exploitation probability.
What products are affected by CVE-2026-43708? +
CVE-2026-43708 affects products from apple, specifically: ipados, iphone_os, macos, safari. Check the affected products table above for specific version ranges.
How do I check if I'm vulnerable to CVE-2026-43708? +
You can use Secably's free Website Scanner to check your website for known vulnerabilities. For infrastructure scanning, use the Port Scanner to identify exposed services that may be affected. Check the vendor advisories linked above for specific patch and version information.

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