CVE-2026-6143 farion1231 cc-switch ProxyServer server.rs cross-domain policy
Remote attackers can bypass cross-domain policies in cc-switch ProxyServer, allowing unauthorized cross-origin requests from untrusted domains.
- Exploited in the wild
- Not known
- Login needed
- Any signed-in user
- Attackable
- Over the internet
- Victim action needed
- Not needed
- Fix
- None listed
What is CVE-2026-6143?
CVE-2026-6143 is a medium-severity vulnerability in farion1231 cc-switch, published on 13 Apr 2026. Any signed-in user can exploit it over the network, with no action from the victim.
Official description
A security flaw has been discovered in farion1231 cc-switch up to 3.12.3. Affected by this issue is some unknown functionality of the file src-tauri/src/proxy/server.rs of the component ProxyServer. The manipulation results in permissive cross-domain policy with untrusted domains. The attack can be executed remotely. The exploit has been released to the public and may be used for attacks.
Which versions are affected by CVE-2026-6143?
How do I fix CVE-2026-6143?
No fix has been published for CVE-2026-6143 yet. Limit exposure of the affected software until one is available.
Is CVE-2026-6143 being exploited?
It is not confirmed as exploited in the wild, but public exploit code for CVE-2026-6143 exists.
Sources
Also known as GHSA-rrm6-2q2p-cpx5.