High · published February 9, 2026
🚨 Your private DMs and followers-only posts could be exposed due to a sneaky oversight in Hollo's ActivityPub endpoint! ⚡ Think of it like a café where only a select group can access the VIP lounge, but the door isn’t locked properly. Any passerby can stroll right in and read your private conversations and posts! If an attacker exploits this vulnerability, they could easily access sensitive private messages and exclusive content meant for specific followers. This breach could lead to serious privacy concerns and potential reputational damage for users, as their private thoughts become public knowledge. Yikes!
Think of it like a café where only a select group can access the VIP lounge, but the door isn’t locked properly. Any passerby can stroll right in and read your private conversations and posts! This vulnerability allows unauthorized access to direct messages and followers-only content via the ActivityPub outbox endpoint, due to a lack of proper authorization checks in versions prior to 0.6.20 and 0.7.2.
If an attacker exploits this vulnerability, they could easily access sensitive private messages and exclusive content meant for specific followers. This breach could lead to serious privacy concerns and potential reputational damage for users, as their private thoughts become public knowledge. Yikes! Immediately upgrade to Hollo versions 0.6.20 or 0.7.2 to secure your private data. Additionally, review your settings and ensure that authorization checks are properly implemented to prevent similar issues in the future. You've totally got this! With these updates, you can keep your microblogging experience safe and sound. 🛡️