CVE-2025-5255 TCC Bypass via Dylib Injection in Phoenix Code
Local attackers can bypass macOS TCC protections via dylib injection in Phoenix Code due to insecure entitlements, accessing previously granted resources.
- Exploited in the wild
- Not known
- Login needed
- Any signed-in user
- Attackable
- Local or same network only
- Victim action needed
- Not needed
- Fix
- None listed
What is CVE-2025-5255?
CVE-2025-5255 is a medium-severity vulnerability in Core.ai Phoenix Code, published on 20 Jun 2025. It can only be exploited from the same machine or local network, with no action from the victim.
Official description
The Phoenix Code's configuration on macOS, specifically the presence of entitlements: "com.apple.security.cs.allow-dyld-environment-variables" and "com.apple.security.cs.disable-library-validation" allows for Dynamic Library (Dylib) injection. A local attacker with unprivileged access can use environment variables like DYLD_INSERT_LIBRARIES to successfully inject code in application's context and bypass Transparency, Consent, and Control (TCC). Acquired resource access is limited to previously granted permissions by the user. Access to other resources beyond granted-permissions requires user interaction with a system prompt asking for permission.
This issue was fixed in commit 0c75fb57f89d0b7d9b180026bc2624b7dcf807da
Weakness: CWE-276
Which versions are affected by CVE-2025-5255?
How do I fix CVE-2025-5255?
No fix has been published for CVE-2025-5255 yet. Limit exposure of the affected software until one is available.
Is CVE-2025-5255 being exploited?
There is no known exploitation of CVE-2025-5255 in the wild and no public exploit code.
Sources
Also known as GHSA-m2wv-p5gg-25gq.