CVE-2026-93960: Pixelfed OAuth Scope ApiV1Controller.php instancePeers missing authentication
A vulnerability was identified in Pixelfed up to 0.12.11. Impacted is the function instancePeers of the file app/Http/Controllers/Api/ApiV1Controller.php of the component OAuth Scope Handler. Such manipulation of the argument ID leads to missing authentication. The attack may be performed from remote. The exploit is publicly available and might be used. Upgrading to version 0.12.10 is recommended to address this issue. The name of the patch is 68dca5097305fa0065d029587b2233524636025a. Upgrading the affected component is advised.
Affected Software
Remediation
Recommended actions to resolve this vulnerability, in priority order.
- Upgrade
Upgrade
pixelfedto a version that resolves this vulnerability.Fixed in 0.12.10Patch 68dca5097305fa0065d029587b2233524636025a
Event History
Frequently Asked Questions
Which deployments are affected?
Pixelfed versions up to 0.12.11 are identified as affected, specifically in the OAuth Scope Handler's instancePeers function in app/Http/Controllers/Api/ApiV1Controller.php.
What access does an attacker need?
The attack can be performed remotely and requires low privileges. It does not require user interaction, and exploitation involves manipulation of an ID argument.
Is public exploitation available?
Yes. A public exploit is available and may be used.
What is the recommended remediation?
Upgrade the affected component to version 0.12.10 as recommended in the advisory, and ensure the fix associated with patch 68dca5097305fa0065d029587b2233524636025a is applied.