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CVE-2026-49269

HIGH Exploitation: PoC
8.6
CVSS 3.1
Description
Apple M1 GPUs retain register file data between compute shader dispatches from different processes. A sandboxed Metal attacker app can run a GPU reader shader that reads stale register values left by a separate sandboxed victim app. In the proof of concept, GPUVictim.app generates a fresh random 128-bit secret using SecRandomCopyBytes and loads it into GPU registers. GPUAttacker.app, a separate sandboxed app, recovers the exact secret from stale GPU register state. NOTE: The vendor stated that this behavior affects only legacy hardware and has already been addressed at the hardware level in current-generation Apple Silicon.

Metadata

CVE ID
CVE-2026-49269
State
PUBLISHED
Assigner
mitre
Reserved
2026-05-28 00:00 UTC
Published
2026-06-24 00:00 UTC
Last updated
2026-06-24 16:05 UTC
Primary CWE
CWE-200
CWE-200 Exposure of Sensitive Information to an Unauthorized…
Vendor / Product
n/a / n/a
Sources
cve.org  ·  NVD

Severity & Metrics

8.6 HIGH CVSS 3.1
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:N/A:N
SSVC — CISA Coordinator
Exploitation
PoC
Automatable
yes
Tech. Impact
partial
Affected products (1)
VendorProductPlatformVersions
n/a n/a — n/a
Weakness (CWE)
CWESourceDescription
— cna n/a
CWE-200 adp CWE-200 Exposure of Sensitive Information to an Unauthorized Actor
CVSS scores (1)
ScoreSeverityVersionSourceVector
8.6 HIGH 3.1 adp CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:N/A:N
References (1)
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