CVE-2026-43779 Security feature bypass in macOS
An app can intercept network connections intended for another process, allowing unauthorized data access and bypassing security restrictions.
- Exploited in the wild
- Not known
- Login needed
- Not needed
- Attackable
- Over the internet
- Victim action needed
- Not needed
- Fix
- None listed
What is CVE-2026-43779?
CVE-2026-43779 is a critical vulnerability in Apple Macos, published on 27 Jul 2026. An attacker can exploit it over the internet without logging in, with no action from the victim.
Official description
A logic issue was addressed with improved restrictions. This issue is fixed in macOS Sequoia 15.7.8, macOS Sonoma 14.8.8, macOS Tahoe 26.6. An app may be able to intercept network connections intended for another process.
Weakness: CWE-284
Which versions are affected by CVE-2026-43779?
It affects 1 product.
Products include Apple Macos.
How do I fix CVE-2026-43779?
No fix has been published for CVE-2026-43779 yet. Limit exposure of the affected software until one is available.
Is CVE-2026-43779 being exploited?
There is no known exploitation of CVE-2026-43779 in the wild and no public exploit code.
Other vulnerabilities in Apple Macos
Sources
Also known as GHSA-j5cm-h776-gmqp.