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.
{
"cna_assigner": "GitHub_M",
"cwe_ids": [
"CWE-862"
],
"osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/25xxx/CVE-2026-25808.json",
"unresolved_ranges": [
{
"extracted_events": [
{
"introduced": "< 0.6.20, 0.7.2"
},
{
"last_affected": "< 0.6.20, 0.7.2"
}
],
"source": "AFFECTED_FIELD"
}
]
}{
"cpe": "cpe:2.3:a:fedify:hollo:*:*:*:*:*:*:*:*",
"extracted_events": [
{
"introduced": "0.6.0"
},
{
"fixed": "0.6.20"
},
{
"introduced": "0.7.0"
},
{
"fixed": "0.7.2"
}
],
"source": [
"CPE_RANGE",
"REFERENCES"
]
}