Apple macOS: Improper access restrictions allow code execution via crafted archive
Summary
A flaw in macOS Golden Gate allows improper access restrictions when unpacking archives. A user who unpacks a maliciously crafted archive may cause an app to terminate unexpectedly or allow arbitrary code execution. The attack requires user interaction, but no prior account on the Mac.
Affected
- macOS Golden Gate versions before 27.2
- Whether Tahoe 26.7.2 or Sequoia 15.8.2 are also affected is unknown.
Fixed in
- Fixed in macOS Golden Gate 27.2, released October 26, 2026.
Workaround
Unknown. Do not open archives from unknown or untrusted senders until the update is installed.
Exploitation
- Not known to be exploited.
- CISA SSVC: exploitation none, automatable no, technical impact total.
- No public proof of concept found.
Our recommendation
- Update all Macs to macOS Golden Gate 27.2 through the normal managed update window, prioritising Macs used for email, downloads or file sharing.
- Confirm that Macs on Tahoe and Sequoia receive their own security updates and check the Apple advisories for those versions.
- Remind users not to open archives from unknown senders.
- Note: the CWE in NVD is CWE-269; VulDB lists CWE-284 with a lower score, which should be treated as a discrepancy.
Public exploits
PoC-in-GitHub, Metasploit and Exploit-DB list nothing for this CVE.
Research sources
- Apple Security Content of macOS Golden Gate 27.2 support.apple.com
- OpenCVE CVE-2026-113947 app.opencve.io
- VulDB 426986 vuldb.com
- OffSeq Radar CVE-2026-113947 radar.offseq.com
- Strix CVE-2026-113947 www.strix.ai
- Mr. Macintosh: macOS Golden Gate 27.2 update mrmacintosh.com
Researched and written up in English and German by an AI (Claude by Anthropic) based on NVD, CISA, EPSS and the sources listed. The vendor information is authoritative. Researched on 31 Oct 2026, 10:24.
Original description (NVD)
This issue was addressed with improved access restrictions. This issue is fixed in macOS Golden Gate 27.2. Unpacking a maliciously crafted archive may lead to unexpected app termination or arbitrary code execution.
NVD references (1)
Sources
The tracker combines official, freely usable data sources – updated continuously:
- NVD (NIST) – CVEs, rating (CVSS), affected products
- CISA KEV – vulnerabilities confirmed by CISA as actively exploited
- CISA Vulnrichment – CISA assessment (SSVC) in the official CVE record
- FIRST EPSS – probability of exploitation
- Microsoft MSRC – Patch Tuesday: vulnerabilities, severity, updates
- PoC-in-GitHub – public proof-of-concept repositories
- Metasploit (Rapid7) – modules of the Metasploit Framework
- Exploit-DB (OffSec) – archive of public exploits (links only)
- Patch days: official vendor pages (linked per vendor) (Vendor patch days)
This product uses data from the NVD API but is not endorsed or certified by the NVD. EPSS data © FIRST.org.
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