Cross-process secret disclosure via stale GPU registers
Published Jun 24, 2026 · Updated Jun 24, 2026
Information disclosure in Apple M1 GPUs allows local users to read cross-process secrets through stale Metal shader register state. The GPU register file is not cleared between compute shader dispatches from different processes, so a reader shader receives residual victim values. Exploitation requires local execution of a sandboxed Metal app on legacy M1 hardware, and the demonstrated consequence is cross-sandbox confidentiality loss only.
Summary
What happened
Information disclosure in Apple M1 GPUs allows local users to read cross-process secrets through stale Metal shader register state. The GPU register file is not cleared between compute shader dispatches from different processes, so a reader shader receives residual victim values. Exploitation requires local execution of a sandboxed Metal app on legacy M1 hardware, and the demonstrated consequence is cross-sandbox confidentiality loss only.
The record
- CVE
- CVE-2026-49269
- Published
- Jun 24, 2026
- Updated
- Jun 24, 2026
- Vendor
- Unknown vendor
- Product
- Unknown product
- Classifications
- CWE-200, T1005
- Attack vector
- local
- Privileges
- Unavailable
Timeline
How it unfolded
- Jun 24, 2026CVE publishedPublication date reported by the CVE source.
- Jun 24, 2026Record updatedLatest update available in the CVE record.
Exploitability
Present is not the same as exploitable
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Is a vulnerable build present?
What conditions does exploitation require?
What is affected?
Affected products and versions are unavailable in this record.
Published CVSS scores
CVSS describes severity. EPSS estimates exploitation probability.
Attacks
What attackers are doing with it
Daily unique IPs observed by Shadowserver honeypots for known exploited vulnerabilities (KEVs). Missing observations do not establish an absence of attacks.
Weakness, pattern, technique
Public exploit references
- GPUAttacker.app proof-of-concept demonstrationproof of concept · demonstrated
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Technologies
Your stack
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Your stack
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