CVE-2026-93960

Pixelfed OAuth Scope ApiV1Controller.php instancePeers missing authentication

State: Published
Severity: 5.3 Medium
Published: Sep 20, 2026
Updated: Sep 22, 2026
Reserved: Sep 19, 2026

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.

Scores

CVSS	Score	Vector	Source
4.0	5.3 Medium	CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:N/VI:L/VA:N/SC:N/SI:N/SA:N/E:P	VulDB
3.1	4.3 Medium	CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:L/A:N/E:P/RL:O/RC:C	VulDB
3.0	4.3 Medium	CVSS:3.0/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:L/A:N/E:P/RL:O/RC:C	VulDB
2.0	4.0 Medium	AV:N/AC:L/Au:S/C:N/I:P/A:N/E:POC/RL:OF/RC:C	VulDB

Weaknesses

CWE-306 Missing Authentication
CWE-287 Improper Authentication

Affected Products

Product	Versions
Pixelfedn/a	0.12.0Affected 0.12.1Affected 0.12.2Affected 0.12.3Affected 0.12.4Affected 0.12.5Affected 0.12.6Affected 0.12.7Affected 0.12.8Affected 0.12.9Affected 0.12.10Affected 0.12.11Affected 0.12.10Not affected

References

VDB-407919 | Pixelfed OAuth Scope ApiV1Controller.php instancePeers missing authenticationvdb-entrytechnical-description
VDB-407919 | CTI Indicators (IOB, IOC, IOA)signaturepermissions-required
CVE-2026-93960 | CVE Analysis and Reportthird-party-advisory
Submit #944207 | pixelfed commit f0ac4aa Missing Authenticationthird-party-advisory
https://github.com/pixelfed/pixelfed/issues/6643exploitissue-tracking
https://github.com/pixelfed/pixelfed/pull/6774issue-trackingpatch
https://github.com/pixelfed/pixelfed/commit/68dca5097305fa0065d029587b2233524636025apatch
https://github.com/pixelfed/pixelfed/releases/tag/v0.12.10patch
https://github.com/pixelfed/pixelfed/product

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