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Gli ultimi otto messaggi ricevuti dalla Federazione
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    "Critical concept: IRIs are opaque identifiers. You cannot infer meaning from the string pattern — only by dereferencing and inspecting the data." [1] This applies to URIs too. Sadly, almost no #ActivityPub implementations use this principle. Multi-tenant servers and simple account portability (with personal domains) would be relatively easy if they did.🙄 It is what it is.../cc @melvincarvalho [1] https://socialdocs.org/docs/concepts/uris-iris-linked-data/
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    🚨 Security Advisory: CVE-2025-68475 A ReDoS (Regular Expression Denial of Service) vulnerability has been discovered in Fedify's HTML parsing code. This vulnerability could allow a malicious federated server to cause denial of service by sending specially crafted HTML responses. CVE ID CVE-2025-68475 Severity High (CVSS 7.5) Affected versions ≤1.9.1 Patched versions 1.6.13, 1.7.14, 1.8.15, 1.9.2 If you're running Fedify in production, please upgrade to one of the patched versions immediately. For full details, see the security advisory: https://github.com/fedify-dev/fedify/security/advisories/GHSA-rchf-xwx2-hm93 Thank you to Yue (Knox) Liu for responsibly reporting this vulnerability. #Fedify #ActivityPub #security #fediverse #fedidev
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    Sind Sie Administrator einer Mastodon-Instanz?⚠️ Aktualisieren Sie jetzt auf Version 4.5! ⚠️Ältere Versionen von Mastodon enthalten bekannte Sicherheitslücken. Außerdem können veraltete Instanzen bestimmte Arten von Inhalten (z. B. Zitate), die in der neuesten Version eingeführt wurden, möglicherweise nicht richtig anzeigen oder übermitteln.Um die Sicherheit, Kompatibilität und Benutzerfreundlichkeit für Ihre Nutzer zu gewährleisten, sollten Sie Ihre Mastodon-Instanz so bald wie möglich auf Version 4.5 aktualisieren.#Mastodon #Fediverse #ActivityPub #Fedi #FediAdmin #Administrator #Admin #MastoAdmin
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    What Mastodon is to ActivityPub . . .Wordpress is to RSS.| #Wordpress #RSS #Mastodon #ActivityPub