CVE-2026-25808
7.5
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N
Summary
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 Software
| Vendor | Product | Version Range | Status |
|---|---|---|---|
| fedify-dev | hollo | < 0.6.20, 0.7.2 | affected |
| fedify-dev | hollo | >= 7.0.0, < 0.7.2 | affected |
Weaknesses
- CWE-862: CWE-862: Missing Authorization
ADP Enrichment
CISA ADP Vulnrichment
- SSVC:
- Exploitation: poc
- Automatable: yes
- Technical Impact: partial
References
- https://github.com/fedify-dev/hollo/security/advisories/GHSA-6r2w-3pcj-v4v5
- https://github.com/fedify-dev/hollo/commit/329969c502ef092d5c3f9c2c20421c34f4ff0f0e
- https://github.com/fedify-dev/hollo/releases/tag/0.6.20
- https://github.com/fedify-dev/hollo/releases/tag/0.7.2
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