What is GHSA-89xf-8j98-5857?

GHSA-89xf-8j98-5857 is a security advisory published by GitHub Security Advisories with High severity. An out-of-bounds write issue was addressed with improved bounds checking. This issue is fixed in...

Which CVE IDs does GHSA-89xf-8j98-5857 cover?

GHSA-89xf-8j98-5857 covers the following CVE IDs: CVE-2026-86929. Each CVE has its own detail page on EchelonGraph Pulse with the synthesized EG score.

What is the CVSS v3 score of GHSA-89xf-8j98-5857?

GHSA-89xf-8j98-5857 has a CVSS v3 base score of 8.8, published by GitHub Security Advisories.

GHSA-89xf-8j98-5857HighCVSS 8.8

An out-of-bounds write issue was addressed with improved bounds checking. This issue is fixed in...

Vendor

GitHub Security Advisories

Published

October 26, 2026

Last Modified

October 27, 2026

🔗 CVE IDs covered (1)

CVE-2026-86929 →

📋 Description

An out-of-bounds write issue was addressed with improved bounds checking. This issue is fixed in macOS Golden Gate 27, macOS Sequoia 15.8.2, macOS Tahoe 26.7.2. Processing a maliciously crafted file may lead to arbitrary code execution.

🔗 References (5)

https://nvd.nist.gov/vuln/detail/CVE-2026-86929
https://support.apple.com/en-us/149035
https://support.apple.com/en-us/149522
https://support.apple.com/en-us/149523
https://github.com/advisories/GHSA-89xf-8j98-5857