CVE-2026-49269 Information disclosure in n/a
A sandboxed app can recover sensitive data from stale GPU registers left by another app on legacy Apple M1 hardware.
- Exploited in the wild
- Not known
- Login needed
- Not needed
- Attackable
- Over the internet
- Victim action needed
- Not needed
- Fix
- None listed
What is CVE-2026-49269?
CVE-2026-49269 is a high-severity vulnerability in n/a, published on 24 Jun 2026. An attacker can exploit it over the internet without logging in, with no action from the victim.
Official 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.
Weakness: CWE-200
Which versions are affected by CVE-2026-49269?
How do I fix CVE-2026-49269?
No fix has been published for CVE-2026-49269 yet. Limit exposure of the affected software until one is available.
Is CVE-2026-49269 being exploited?
It is not confirmed as exploited in the wild, but public exploit code for CVE-2026-49269 exists.
Sources
Also known as GHSA-vwgr-66jm-j45f.