{"dataType": "CVE_RECORD", "dataVersion": "5.2", "cveMetadata": {"cveId": "CVE-2026-25808", "assignerOrgId": "a0819718-46f1-4df5-94e2-005712e83aaa", "state": "PUBLISHED", "assignerShortName": "GitHub_M", "dateReserved": "2026-02-05T19:58:01.642Z", "datePublished": "2026-02-09T21:50:10.579Z", "dateUpdated": "2026-02-09T21:50:10.579Z"}, "containers": {"cna": {"title": "Hollo DMs get leaked and can be seen on Webfinger Browser", "problemTypes": [{"descriptions": [{"cweId": "CWE-862", "lang": "en", "description": "CWE-862: Missing Authorization", "type": "CWE"}]}], "metrics": [{"cvssV3_1": {"attackComplexity": "LOW", "attackVector": "NETWORK", "availabilityImpact": "NONE", "baseScore": 7.5, "baseSeverity": "HIGH", "confidentialityImpact": "HIGH", "integrityImpact": "NONE", "privilegesRequired": "NONE", "scope": "UNCHANGED", "userInteraction": "NONE", "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N", "version": "3.1"}}], "references": [{"name": "https://github.com/fedify-dev/hollo/security/advisories/GHSA-6r2w-3pcj-v4v5", "tags": ["x_refsource_CONFIRM"], "url": "https://github.com/fedify-dev/hollo/security/advisories/GHSA-6r2w-3pcj-v4v5"}, {"name": "https://github.com/fedify-dev/hollo/commit/329969c502ef092d5c3f9c2c20421c34f4ff0f0e", "tags": ["x_refsource_MISC"], "url": "https://github.com/fedify-dev/hollo/commit/329969c502ef092d5c3f9c2c20421c34f4ff0f0e"}, {"name": "https://github.com/fedify-dev/hollo/releases/tag/0.6.20", "tags": ["x_refsource_MISC"], "url": "https://github.com/fedify-dev/hollo/releases/tag/0.6.20"}, {"name": "https://github.com/fedify-dev/hollo/releases/tag/0.7.2", "tags": ["x_refsource_MISC"], "url": "https://github.com/fedify-dev/hollo/releases/tag/0.7.2"}], "affected": [{"vendor": "fedify-dev", "product": "hollo", "versions": [{"version": "< 0.6.20, 0.7.2", "status": "affected"}, {"version": ">= 7.0.0, < 0.7.2", "status": "affected"}]}], "providerMetadata": {"orgId": "a0819718-46f1-4df5-94e2-005712e83aaa", "shortName": "GitHub_M", "dateUpdated": "2026-02-09T21:50:10.579Z"}, "descriptions": [{"lang": "en", "value": "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."}], "source": {"advisory": "GHSA-6r2w-3pcj-v4v5", "discovery": "UNKNOWN"}}}}

{}

{"cveTags": [], "descriptions": [{"lang": "en", "value": "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."}], "id": "CVE-2026-25808", "lastModified": "2026-02-09T22:16:02.440", "metrics": {"cvssMetricV31": [{"cvssData": {"attackComplexity": "LOW", "attackVector": "NETWORK", "availabilityImpact": "NONE", "baseScore": 7.5, "baseSeverity": "HIGH", "confidentialityImpact": "HIGH", "integrityImpact": "NONE", "privilegesRequired": "NONE", "scope": "UNCHANGED", "userInteraction": "NONE", "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N", "version": "3.1"}, "exploitabilityScore": 3.9, "impactScore": 3.6, "source": "security-advisories@github.com", "type": "Secondary"}]}, "published": "2026-02-09T22:16:02.440", "references": [{"source": "security-advisories@github.com", "url": "https://github.com/fedify-dev/hollo/commit/329969c502ef092d5c3f9c2c20421c34f4ff0f0e"}, {"source": "security-advisories@github.com", "url": "https://github.com/fedify-dev/hollo/releases/tag/0.6.20"}, {"source": "security-advisories@github.com", "url": "https://github.com/fedify-dev/hollo/releases/tag/0.7.2"}, {"source": "security-advisories@github.com", "url": "https://github.com/fedify-dev/hollo/security/advisories/GHSA-6r2w-3pcj-v4v5"}], "sourceIdentifier": "security-advisories@github.com", "vulnStatus": "Received", "weaknesses": [{"description": [{"lang": "en", "value": "CWE-862"}], "source": "security-advisories@github.com", "type": "Primary"}]}

{}

{}