High severity7.5NVD Advisory· Published Feb 9, 2026· Updated Jun 17, 2026
CVE-2026-25808
CVE-2026-25808
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.
AI Insight
LLM-synthesized narrative grounded in this CVE's description and references.
Affected products
3< 0.6.20, 0.7.2+ 2 more
- (no CPE)range: < 0.6.20, 0.7.2
- (no CPE)range: <0.6.20, <0.7.2
- cpe:2.3:a:fedify:hollo:*:*:*:*:*:*:*:*range: >=0.6.0,<0.6.20
Patches
Vulnerability mechanics
References
4- github.com/fedify-dev/hollo/commit/329969c502ef092d5c3f9c2c20421c34f4ff0f0envdPatch
- github.com/fedify-dev/hollo/security/advisories/GHSA-6r2w-3pcj-v4v5nvdExploitVendor Advisory
- github.com/fedify-dev/hollo/releases/tag/0.6.20nvdProductRelease Notes
- github.com/fedify-dev/hollo/releases/tag/0.7.2nvdProductRelease Notes
News mentions
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