CVE-2026-25808

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Source
https://cve.org/CVERecord?id=CVE-2026-25808
Import Source
https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-25808.json
JSON Data
https://api.osv.dev/v1/vulns/CVE-2026-25808
Aliases
  • GHSA-6r2w-3pcj-v4v5
Published
2026-02-09T21:50:10.579Z
Modified
2026-07-16T03:48:22.844141520Z
Severity
  • 7.5 (High) CVSS_V3 - CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N CVSS Calculator
Summary
Hollo DMs get leaked and can be seen on Webfinger Browser
Details

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.

Database specific 
{
    "cwe_ids": [
        "CWE-862"
    ],
    "osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/25xxx/CVE-2026-25808.json",
    "cna_assigner": "GitHub_M",
    "unresolved_ranges": [
        {
            "extracted_events": [
                {
                    "introduced": "< 0.6.20, 0.7.2"
                },
                {
                    "last_affected": "< 0.6.20, 0.7.2"
                }
            ],
            "source": "AFFECTED_FIELD"
        }
    ]
}
References

Affected packages

Git / github.com/fedify-dev/hollo

Affected ranges

Type
GIT
Repo
https://github.com/fedify-dev/hollo
Events
Introduced
d61781b391f59bd13586cb6b54c8b9d7c1b3843f
Fixed
6f40242f033335958216e92d55c2f875d60a40bc
Introduced
77645493026cf9138fecdf8028c4ad9769d159c0
Fixed
4d02a2d28e347c90bf81697e52a66de2bbf4928f
Fixed
329969c502ef092d5c3f9c2c20421c34f4ff0f0e
Database specific 
{
    "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"
    ]
}

Affected versions

0.*
0.6.0
0.6.1
0.6.10
0.6.11
0.6.12
0.6.13
0.6.14
0.6.15
0.6.16
0.6.17
0.6.18
0.6.19
0.6.2
0.6.3
0.6.4
0.6.5
0.6.6
0.6.7
0.6.8
0.6.9
0.7.0
0.7.1

Database specific

source 
"https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-25808.json"