CVE-2026-71246

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CVSS 3.1

4.3 medium

EPSS

<1%p6

Published

Aug 5, 2026 (Aug 5, 2026)

Modified

Aug 26, 2026

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).

Weakness: CWE-918
Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:N

NVD CVE.org GitHub PoCs EPSS (0.2%)

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