Fedify Hollo vulnerabilities

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Published CVEs affecting Fedify Hollo: 1 record(s), with affected versions and fixes.
cpe:2.3:a:fedify:hollo

CVE-2026-25808 High · 7.5 CWE-862 Feb 9, 2026

Hollo DMs get leaked and can be seen on Webfinger Browser

Hollo is a federated single-user microblogging software designed to be federated through ActivityPub. Prior to 0.6.20 and 0.7.2, there is a security vulnerability where DMs and followers-only posts were exposed through the ActivityPub outbox endpoint without authorization. This vulnerability is fixed in 0.6.20 and 0.7.2.