macOS CoreText out-of-bounds read can disclose information
Original title: ZDI-26-831: Apple macOS CoreText GDEF LigCaretList Out-Of-Bounds Read Information Disclosure Vulnerability
CVE-2026-112656 is scored CVSS 3.3 and requires opening a malicious page or file.
ZDI published ZDI-26-831, an out-of-bounds read in Apple macOS CoreText involving GDEF LigCaretList. A remote attacker can disclose sensitive information if the user visits a malicious page or opens a malicious file. ZDI assigned CVSS 3.3 and CVE-2026-112656.
Unconfirmed: Affected macOS versions, a fix, and exploitation status are not stated.
- User interaction is required to exploit the flaw.
- The bug is an out-of-bounds read in CoreText.
- ZDI assigned CVE-2026-112656 and a CVSS rating of 3.3.
Impact: disclosure of sensitive information
| Product | Affected |
|---|---|
| Apple macOS | — |
- CVEs
- CVE-2026-112656
- Vendors
- Apple
- Products
- macOS
- Organizations
- Zero Day Initiative
Vulnerabilities mentioned
All| CVE | Vulnerability | CVSS | EPSS | Signals | Published |
|---|---|---|---|---|---|
| CVE-2026-112656 | Out-of-bounds read in Apple CoreText font processing | — | — |
From the original article
This vulnerability allows remote attackers to disclose sensitive information on affected installations of Apple macOS. User interaction is required to exploit this vulnerability in that the target must visit a malicious page or open a malicious file. The ZDI has assigned a CVSS rating of 3.
zerodayinitiative.com
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