CVE-2026-93960 Details
Description
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.
A vulnerability exists in Pixelfed versions through 0.12.11, specifically within the OAuth Scope Handler in the ApiV1Controller. The issue arises in the instancePeers function, where the argument ID can be manipulated, leading to a bypass of authentication requirements. This vulnerability allows an attacker with a read-only OAuth token to remove followers from a user account, an action that should require write permissions. The flaw can be exploited remotely, and a public exploit is available.
Users are advised to upgrade to Pixelfed version 0.12.10, where this vulnerability has been fixed.
Metrics
CVSS 4.0 Severity and Vector Strings:
VolerionCVSS 3.x Severity and Vector Strings:
No data available for CVSS Version 2.0 on this CVE.
Volerion
Assessed Sep 20, 2026CISA-ADP
Assessed Sep 22, 2026References to Advisories, Solutions, and Tools
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| URL | Source(s) | Tag(s) |
|---|---|---|
| https://vuldb.com/submit/944207 | CISA-ADP | Issue TrackingPermission Required |
| https://github.com/pixelfed/pixelfed/ | [email protected] | Vendor |
| https://github.com/pixelfed/pixelfed/commit/68dca5097305fa0065d029587b2233524636025a | [email protected] | Source CodeVendor |
| https://github.com/pixelfed/pixelfed/issues/6643 | [email protected] | ExploitIssue TrackingTechnical DescriptionVendor |
| https://github.com/pixelfed/pixelfed/pull/6774 | [email protected] | Issue TrackingVendor |
| https://github.com/pixelfed/pixelfed/releases/tag/v0.12.10 | [email protected] | Release NotesVendor |
| https://vuldb.com/cve/CVE-2026-93960 | [email protected] | AdvisoryPermission Required |
| https://vuldb.com/submit/944207 | [email protected] | Issue TrackingPermission Required |
| https://vuldb.com/vuln/407919 | [email protected] | BundlePermission Required |
| https://vuldb.com/vuln/407919/cti | [email protected] | Content Wall |
Weakness Enumeration
| CWE-ID | CWE Name | Source |
|---|---|---|
| CWE-287 | Improper Authentication | [email protected] |
| CWE-306 | Missing Authentication for Critical Function | [email protected] |
Affected Products
| Product | Versions |
|---|---|
| Pixelfed | <= 0.12.11 (semver) |
CPE
Remediation
| |
Change History
2 change records found show changes
| Date | Action | Recorded By |
|---|---|---|
| Sep 22, 2026 | CVE Modified | CISA-ADP |
| Sep 20, 2026 | New CVE Received | [email protected] |