CVE-2026-71246

Published: Aug 5, 2026Modified: Aug 26, 2026Deferred

4.3

Vector

CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:N

Exploitability: 2.8 / Impact: 1.4

Source: 309f9ea4-e3e9-4c6c-b79d-e8eb01244f2c (Secondary)

Description

Pixelfed's SearchController (behind the auth middleware) accepts a URL via its remote-search parameters and fetches it server-side through ActivityPubFetchService, whose validateUrl only blocks the literal hosts 127.0.0.1, localhost, and ::1 and requires https, without checking the resolved IP against private, internal, or link-local ranges (e.g. 169.254.169.254).

Related CWEs

CWE-918

Server-Side Request Forgery (SSRF)

The web server receives a URL or similar request from an upstream component and retrieves the contents of this URL, but it does not sufficiently ensure that the request is being sent to the expected destination.

References (1)

https://github.com/pixelfed/pixelfed

Source: 309f9ea4-e3e9-4c6c-b79d-e8eb01244f2c

Timeline

No history available yet.