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CVE PROGRAM SOURCE RECORD7.5 High

CVE-2026-25808

Hollo DMs get leaked and can be seen on Webfinger Browser

Description

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.

Affected products

Version statuses are supplied by the assigning organization. Consult the original record for detailed ranges and platform conditions.

fedify-dev hollo

  • < 0.6.20, 0.7.2affected
  • >= 7.0.0, < 0.7.2affected

References