7.5

CVE-2026-25808

Exploit

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.
Daten sind bereitgestellt durch National Vulnerability Database (NVD)
Fedify ≫ Hollo Version >= 0.6.0 < 0.6.20
Fedify ≫ Hollo Version >= 0.7.0 < 0.7.2
Zu dieser CVE wurde keine Warnung gefunden.
EPSS Metriken
Typ Quelle Score Percentile
EPSS FIRST.org 0.45% 0.357
CVSS Metriken
Quelle Base Score Exploit Score Impact Score Vector String
security-advisories@github.com 7.5 3.9 3.6
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N
CWE-862 Missing Authorization

The product does not perform an authorization check when an actor attempts to access a resource or perform an action.

https://github.com/fedify-dev/hollo/security/advisories/GHSA-6r2w-3pcj-v4v5
Vendor Advisory
Exploit
https://github.com/fedify-dev/hollo/commit/329969c502ef092d5c3f9c2c20421c34f4ff0f0e
Patch
https://github.com/fedify-dev/hollo/releases/tag/0.6.20
Product
Release Notes
https://github.com/fedify-dev/hollo/releases/tag/0.7.2
Product
Release Notes