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CVE-2026-25808

HIGH

7.5

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.

Details CVE

Score CVSS v3.17.5

SeveriteHIGH

Vecteur CVSSCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N

Vecteur d'attaqueNETWORK

ComplexiteLOW

Privileges requisNONE

Interaction utilisateurNONE

Publie2/9/2026

Derniere modification2/28/2026

Sourcenvd

Observations honeypot0

Produits affectes

fedify:hollo

Faiblesses (CWE)

CWE-862

References

https://github.com/fedify-dev/hollo/commit/329969c502ef092d5c3f9c2c20421c34f4ff0f0e(security-advisories@github.com)

https://github.com/fedify-dev/hollo/releases/tag/0.6.20(security-advisories@github.com)

https://github.com/fedify-dev/hollo/releases/tag/0.7.2(security-advisories@github.com)

https://github.com/fedify-dev/hollo/security/advisories/GHSA-6r2w-3pcj-v4v5(security-advisories@github.com)

Correlations IOC

Aucune correlation enregistree

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