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ISAC Alert - -

Pixelfed versions 0.12.4 and earlier contain a critical privacy vulnerability that impacts any and all Fediverse service providers that support follower-only messaging from follower-approvals-required accounts.

Ref: fokus.cool/2025/03/25/pixelfed

A tracking spreadsheet of domains by version is available at docs.google.com/spreadsheets/d

If you host accounts that expect their followers-only posts to be non-visible to unapproved followers on remote Pixelfed services, consider informing your members.