SB2026081825 - Multiple vulnerabilities in macOS Tahoe

Description

This security bulletin contains information about 28 vulnerabilities.

1) State Issues (CVE-ID: CVE-2026-65351)

CWE-ID: CWE-371 - State Issues

CVSSv4: 5.1 [CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:A/VC:N/VI:N/VA:L/SC:N/SI:N/SA:N]

The vulnerability allows a remote attacker to crash the browser.

The vulnerability exists due to a state issue when processing untrusted web content in WebKit. A remote attacker can trick the victim into visiting a specially crafted website and crash the browser. 

2) Buffer overflow (CVE-ID: CVE-2026-64779)

CWE-ID: CWE-119 - Memory corruption

CVSSv4: 5.1 [CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:A/VC:N/VI:N/VA:L/SC:N/SI:N/SA:N]

The vulnerability allows a remote attacker to crash the browser.

The vulnerability exists due to a boundary error in WebKit Storage. A remote attacker can trick the victim into visiting a specially crafted website and  rash the browser.

3) Improper access control (CVE-ID: CVE-2026-65347)

CWE-ID: CWE-284 - Improper Access Control

CVSSv4: 4.6 [CVSS:4.0/AV:L/AC:L/AT:N/PR:N/UI:A/VC:N/VI:N/VA:L/SC:N/SI:N/SA:N]

The vulnerability allows a remote attacker to perform a denial of service (DoS) attack.

The vulnerability exists due to improper access restrictions in ImageIO. A remote attacker can trick the victim into opening a specially crafted file and perform a denial-of-service.

4) Improper input validation (CVE-ID: CVE-2026-65346)

CWE-ID: CWE-20 - Improper input validation

CVSSv4: 8.4 [CVSS:4.0/AV:L/AC:L/AT:N/PR:N/UI:A/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N]

The vulnerability allows a remote attacker to execute arbitrary code.

The vulnerability exists due to insufficient input validation in ImageIO. A remote attacker can trick the victim into opening a specially crafted file and perform arbitrary code execution.

5) Memory corruption (CVE-ID: CVE-2026-64788)

CWE-ID: CWE-119 - Memory corruption

CVSSv4: 9.3 [CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N]

The vulnerability allows a remote attacker to execute arbitrary code.

The vulnerability exists due to memory corruption in IOGPUFamily when handling unspecified input. A remote attacker can trigger the vulnerable component to execute arbitrary code.

6) Use after free (CVE-ID: CVE-2026-65343)

CWE-ID: CWE-416 - Use After Free

CVSSv4: 6.7 [CVSS:4.0/AV:L/AC:L/AT:N/PR:N/UI:A/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N]

The vulnerability allows a remote attacker to perform a denial of service (DoS) attack.

The vulnerability exists due to a use-after-free error in Kernel. A remote attacker can trick the victim into opening a specially crafted file and cause unexpected system termination.

7) Improper input validation (CVE-ID: CVE-2026-65349)

CWE-ID: CWE-20 - Improper input validation

CVSSv4: 6.8 [CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N]

The vulnerability allows a local application to perform a denial of service (DoS) attack.

The vulnerability exists due to insufficient input validation in Kernel. A local application can cause unexpected system termination or read kernel memory.

8) Memory corruption (CVE-ID: CVE-2026-65330)

CWE-ID: CWE-119 - Memory corruption

CVSSv4: 8.5 [CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N]

The vulnerability allows a local application to escalate privileges on the system.

The vulnerability exists due to a boundary error in Kernel. A local application can cause unexpected system termination or corrupt kernel memory.

9) Memory corruption (CVE-ID: CVE-2026-64784)

CWE-ID: CWE-119 - Memory corruption

CVSSv4: 4.6 [CVSS:4.0/AV:L/AC:L/AT:N/PR:N/UI:A/VC:N/VI:N/VA:L/SC:N/SI:N/SA:N]

The vulnerability allows a remote attacker to perform a denial of service (DoS) attack.

The vulnerability exists due to a boundary error in WebKit. A remote attacker can trick the victim into opening a specially crafted file and perform an unexpected Safari crash.

10) Memory corruption (CVE-ID: CVE-2026-43795)

CWE-ID: CWE-119 - Memory corruption

CVSSv4: 5.1 [CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:A/VC:N/VI:N/VA:L/SC:N/SI:N/SA:N]

The vulnerability allows a remote attacker to perform a denial of service (DoS) attack.

The vulnerability exists due to a boundary error in WebKit. A remote attacker can trick the victim into opening a specially crafted file and perform an unexpected Safari crash.

11) Memory corruption (CVE-ID: CVE-2026-65338)

CWE-ID: CWE-119 - Memory corruption

CVSSv4: 5.1 [CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:A/VC:N/VI:N/VA:L/SC:N/SI:N/SA:N]

The vulnerability allows a remote attacker to perform a denial of service (DoS) attack.

The vulnerability exists due to a boundary error in WebKit. A remote attacker can trick the victim into opening a specially crafted file and perform an unexpected Safari crash.

12) Memory corruption (CVE-ID: CVE-2026-65341)

CWE-ID: CWE-119 - Memory corruption

CVSSv4: 8.4 [CVSS:4.0/AV:L/AC:L/AT:N/PR:N/UI:A/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N]

The vulnerability allows a remote attacker to execute arbitrary code.

The vulnerability exists due to memory corruption in WebKit when rendering web content. A remote attacker can craft malicious web content to execute arbitrary code.

13) Improper input validation (CVE-ID: CVE-2026-64782)

CWE-ID: CWE-20 - Improper input validation

CVSSv4: 6.7 [CVSS:4.0/AV:L/AC:L/AT:N/PR:N/UI:A/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N]

The vulnerability allows a remote attacker to cause a denial of service.

The vulnerability exists due to improper input validation in WebKit when handling web content. A remote attacker can send specially crafted content to cause a denial of service.

14) Improper input validation (CVE-ID: CVE-2026-64781)

CWE-ID: CWE-20 - Improper input validation

CVSSv4: 4.6 [CVSS:4.0/AV:L/AC:L/AT:N/PR:N/UI:A/VC:N/VI:N/VA:L/SC:N/SI:N/SA:N]

The vulnerability allows a remote attacker to perform a denial of service (DoS) attack.

The vulnerability exists due to insufficient input validation in WebKit. A remote attacker can trick the victim into opening a specially crafted file and perform an unexpected Safari crash.

15) State Issues (CVE-ID: CVE-2026-65337)

CWE-ID: CWE-371 - State Issues

CVSSv4: 5.1 [CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:A/VC:N/VI:N/VA:L/SC:N/SI:N/SA:N]

The vulnerability allows a remote attacker to crash the browser.

The vulnerability exists due to a state issue when processing untrusted web content in WebKit. A remote attacker can trick the victim into visiting a specially crafted website and crash the browser. 

16) Improper access control (CVE-ID: CVE-2026-65339)

CWE-ID: CWE-284 - Improper Access Control

CVSSv4: 8.5 [CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N]

The vulnerability allows a local user to escalate privileges.

The vulnerability exists due to improper access control in Audio when handling local application access. A local user can access the vulnerable component to escalate privileges.

17) State Issues (CVE-ID: CVE-2026-65336)

CWE-ID: CWE-371 - State Issues

CVSSv4: 5.1 [CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:A/VC:N/VI:N/VA:L/SC:N/SI:N/SA:N]

The vulnerability allows a remote attacker to crash the browser.

The vulnerability exists due to a state issue when processing untrusted web content in WebKit. A remote attacker can trick the victim into visiting a specially crafted website and crash the browser. 

18) State Issues (CVE-ID: CVE-2026-65335)

CWE-ID: CWE-371 - State Issues

CVSSv4: 5.1 [CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:A/VC:N/VI:N/VA:L/SC:N/SI:N/SA:N]

The vulnerability allows a remote attacker to crash the browser.

The vulnerability exists due to a state issue when processing untrusted web content in WebKit. A remote attacker can trick the victim into visiting a specially crafted website and crash the browser. 

19) State Issues (CVE-ID: CVE-2026-65333)

CWE-ID: CWE-371 - State Issues

CVSSv4: 5.1 [CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:A/VC:N/VI:N/VA:L/SC:N/SI:N/SA:N]

The vulnerability allows a remote attacker to crash the browser.

The vulnerability exists due to a state issue when processing untrusted web content in WebKit. A remote attacker can trick the victim into visiting a specially crafted website and crash the browser. 

20) State Issues (CVE-ID: CVE-2026-65332)

CWE-ID: CWE-371 - State Issues

CVSSv4: 5.1 [CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:A/VC:N/VI:N/VA:L/SC:N/SI:N/SA:N]

The vulnerability allows a remote attacker to crash the browser.

The vulnerability exists due to a state issue when processing untrusted web content in WebKit. A remote attacker can trick the victim into visiting a specially crafted website and crash the browser. 

21) State Issues (CVE-ID: CVE-2026-65331)

CWE-ID: CWE-371 - State Issues

CVSSv4: 5.1 [CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:A/VC:N/VI:N/VA:L/SC:N/SI:N/SA:N]

The vulnerability allows a remote attacker to crash the browser.

The vulnerability exists due to a state issue when processing untrusted web content in WebKit. A remote attacker can trick the victim into visiting a specially crafted website and crash the browser. 

22) Use-after-free (CVE-ID: CVE-2026-64715)

CWE-ID: CWE-416 - Use After Free

CVSSv4: 5.1 [CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:A/VC:N/VI:N/VA:L/SC:N/SI:N/SA:N]

The vulnerability allows a remote attacker to crash the browser.

The vulnerability exists due to a use-after-free error when processing untrusted web content in WebKit. A remote attacker can trick the victim into visiting a malicious website and crash the browser.

23) Input validation error (CVE-ID: CVE-2026-64780)

CWE-ID: CWE-20 - Improper input validation

CVSSv4: 5.1 [CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:A/VC:N/VI:N/VA:L/SC:N/SI:N/SA:N]

The vulnerability allows a remote attacker to perform a denial of service (DoS) attack.

The vulnerability exists due to insufficient validation of user-supplied input in WebKit. A remote attacker can trick the victim into visiting a malicious website and crash the browser.

24) Buffer overflow (CVE-ID: CVE-2026-65334)

CWE-ID: CWE-119 - Memory corruption

CVSSv4: 5.1 [CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:A/VC:N/VI:N/VA:L/SC:N/SI:N/SA:N]

The vulnerability allows a remote attacker to crash the browser.

The vulnerability exists due to a boundary error in WebKit when processing untrusted web content. A remote attacker can trick the victim into visiting a malicious website and crash the browser.

25) Buffer overflow (CVE-ID: CVE-2026-43794)

CWE-ID: CWE-119 - Memory corruption

CVSSv4: 8.6 [CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:A/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N]

The vulnerability allows a remote attacker to execute arbitrary code on the target system.

The vulnerability exists due to a boundary error in WebKit. A remote attacker can trick the victim into visiting a specially crafted website, trigger memory corruption and execute arbitrary code on the target system.

26) Use-after-free (CVE-ID: CVE-2026-64787)

CWE-ID: CWE-416 - Use After Free

CVSSv4: 5.1 [CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:A/VC:N/VI:N/VA:L/SC:N/SI:N/SA:N]

The vulnerability allows a remote attacker to crash the browser.

The vulnerability exists due to a use-after-free error when processing untrusted web content in WebKit. A remote attacker can trick the victim into visiting a malicious website and crash the browser.

27) Information disclosure (CVE-ID: CVE-2026-64778)

CWE-ID: CWE-200 - Exposure of sensitive information to an unauthorized actor

CVSSv4: 5.1 [CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:A/VC:L/VI:N/VA:N/SC:N/SI:N/SA:N]

The vulnerability allows a remote attacker to gain access to potentially sensitive information.

The vulnerability exists due to excessive data output in WebKit History. A remote attacker can gain unauthorized access to sensitive information.

28) State Issues (CVE-ID: CVE-2026-65340)

CWE-ID: CWE-371 - State Issues

CVSSv4: 5.1 [CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:A/VC:N/VI:N/VA:L/SC:N/SI:N/SA:N]

The vulnerability allows a remote attacker to crash the browser.

The vulnerability exists due to a state issue when processing untrusted web content in WebKit. A remote attacker can trick the victim into visiting a specially crafted website and crash the browser. 

Remediation

Install update from vendor's website.

References

• https://support.apple.com/en-us/148281