CVE-2026-71246

MediumCVSS 4.3/10Last 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).

Metrics

CVSS 3.1 4.3/10CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:N

Weakness enumeration

Affected software

No affected versions have been published.

Timeline

Published
Aug 5, 2026
Last modified
Aug 26, 2026
NVD status
Deferred

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CVE-2026-71246: Medium severity, CVSS 4.3 | Vulnix