UAF in Safari WebKit on macOS before 26.5 (fixed 26.5)
CVE-2026-28946 Published on May 11, 2026
A use-after-free issue was addressed with improved memory management. This issue is fixed in Safari 26.5, macOS Tahoe 26.5. Processing maliciously crafted web content may lead to an unexpected Safari crash.
Vulnerability Analysis
CVE-2026-28946 is exploitable with network access, requires user interaction. This vulnerability is considered to have a low attack complexity. The potential impact of an exploit of this vulnerability is considered to be very high.
Weakness Type
What is a Dangling pointer Vulnerability?
Referencing memory after it has been freed can cause a program to crash, use unexpected values, or execute code.
CVE-2026-28946 has been classified to as a Dangling pointer vulnerability or weakness.
Products Associated with CVE-2026-28946
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Affected Versions
Apple Safari:- Before 26.5 is affected.
- Before 26.5 is affected.
- Version 0:2.52.4-1.el7_9 and below * is unaffected.
- Version 0:2.52.4-1.el8_10 and below * is unaffected.
- Version 0:2.52.4-1.el8_4 and below * is unaffected.
- Version 0:2.52.4-1.el8_4 and below * is unaffected.
- Version 0:2.52.4-1.el8_6 and below * is unaffected.
- Version 0:2.52.4-1.el8_6 and below * is unaffected.
- Version 0:2.52.4-1.el8_8 and below * is unaffected.
- Version 0:2.52.4-1.el8_8 and below * is unaffected.
- Version 0:2.52.4-1.el9_8 and below * is unaffected.
- Version 0:2.52.4-1.el9_2 and below * is unaffected.
- Version 0:2.52.4-1.el9_4 and below * is unaffected.
- Version 0:2.52.4-1.el9_6 and below * is unaffected.
Exploit Probability
EPSS (Exploit Prediction Scoring System) scores estimate the probability that a vulnerability will be exploited in the wild within the next 30 days. The percentile shows you how this score compares to all other vulnerabilities.