{"schema_version":1,"title":"Joinmastodon Mastodon vulnerabilities","summary":"Junglewise Threat Intelligence has tracked 3 vulnerabilities in Joinmastodon Mastodon: 0 in the last 7 days and 0 in the last 90 days, 0 of them critical and 0 exploited in the wild. The most recent, CVE-2026-41259, was published on 23 April 2026.","url":"https://junglewise.ai/threats/technologies/joinmastodon-mastodon","json_url":"https://junglewise.ai/threats/technologies/joinmastodon-mastodon.json","publisher":"Junglewise Threat Intelligence","license":"CC-BY-4.0","license_url":"https://creativecommons.org/licenses/by/4.0/","attribution":"Junglewise Threat Intelligence, https://junglewise.ai/threats/technologies/joinmastodon-mastodon","sources":"NVD, GitHub Security Advisories, OSV, the CISA Known Exploited Vulnerabilities catalog, FIRST EPSS and vendor advisories","kind":"technology","thin":true,"counts":{"high":1,"all_time":3,"critical":0,"exploited":0,"last_7_days":0,"last_30_days":0,"last_90_days":0,"last_365_days":2},"latest":[{"cve":"CVE-2026-41259","cvss":7.5,"epss":0.0021,"slug":"cve-2026-41259-mastodon-is-a-free-open-source-social-network-server-based-on","title":"Mastodon is a free, open-source social network server based on ActivityPub. Prior to v4.5.9, v4.4.16, and v4.3.22…","severity":"high","exploited":false,"published_at":"2026-04-23T19:17:30.027+00:00","url":"https://junglewise.ai/threats/cve-2026-41259-mastodon-is-a-free-open-source-social-network-server-based-on"},{"cve":"CVE-2025-67500","cvss":3.7,"epss":0.0022,"slug":"cve-2025-67500-mastodon-is-a-free-open-source-social-network-server-based-on","title":"Mastodon is a free, open-source social network server based on ActivityPub. Versions 4.2.27 and prior, 4.3.0-beta.1…","severity":"low","exploited":false,"published_at":"2025-12-10T00:16:11.27+00:00","url":"https://junglewise.ai/threats/cve-2025-67500-mastodon-is-a-free-open-source-social-network-server-based-on"},{"cve":"CVE-2025-62605","cvss":4.3,"epss":0.0029,"slug":"cve-2025-62605-mastodon-is-a-free-open-source-social-network-server-based-on","title":"Mastodon is a free, open-source social network server based on ActivityPub. In Mastodon version 4.4, support for…","severity":"medium","exploited":false,"published_at":"2025-10-21T17:15:41.203+00:00","url":"https://junglewise.ai/threats/cve-2025-62605-mastodon-is-a-free-open-source-social-network-server-based-on"}],"weekly":[{"week":"2026-08-17","critical":0,"exploited":0,"vulnerabilities":0},{"week":"2026-08-24","critical":0,"exploited":0,"vulnerabilities":0},{"week":"2026-08-31","critical":0,"exploited":0,"vulnerabilities":0},{"week":"2026-09-07","critical":0,"exploited":0,"vulnerabilities":0},{"week":"2026-09-14","critical":0,"exploited":0,"vulnerabilities":0},{"week":"2026-09-21","critical":0,"exploited":0,"vulnerabilities":0},{"week":"2026-09-28","critical":0,"exploited":0,"vulnerabilities":0},{"week":"2026-10-05","critical":0,"exploited":0,"vulnerabilities":0},{"week":"2026-10-12","critical":0,"exploited":0,"vulnerabilities":0},{"week":"2026-10-19","critical":0,"exploited":0,"vulnerabilities":0},{"week":"2026-10-26","critical":0,"exploited":0,"vulnerabilities":0},{"week":"2026-11-02","critical":0,"exploited":0,"vulnerabilities":0},{"week":"2026-11-09","critical":0,"exploited":0,"vulnerabilities":0}],"related":[],"technology":{"hub":true,"name":"Joinmastodon Mastodon","slug":"joinmastodon-mastodon","vendor":{"hub":true,"name":"Joinmastodon","slug":"joinmastodon","url":"https://junglewise.ai/threats/vendors/joinmastodon"},"aliases":[],"description":"Federated social media platform enabling decentralized social networking across multiple servers.","url":"https://junglewise.ai/threats/technologies/joinmastodon-mastodon"},"most_severe":[{"cve":"CVE-2026-41259","cvss":7.5,"epss":0.0021,"slug":"cve-2026-41259-mastodon-is-a-free-open-source-social-network-server-based-on","title":"Mastodon is a free, open-source social network server based on ActivityPub. Prior to v4.5.9, v4.4.16, and v4.3.22…","severity":"high","exploited":false,"published_at":"2026-04-23T19:17:30.027+00:00","url":"https://junglewise.ai/threats/cve-2026-41259-mastodon-is-a-free-open-source-social-network-server-based-on"},{"cve":"CVE-2025-62605","cvss":4.3,"epss":0.0029,"slug":"cve-2025-62605-mastodon-is-a-free-open-source-social-network-server-based-on","title":"Mastodon is a free, open-source social network server based on ActivityPub. In Mastodon version 4.4, support for…","severity":"medium","exploited":false,"published_at":"2025-10-21T17:15:41.203+00:00","url":"https://junglewise.ai/threats/cve-2025-62605-mastodon-is-a-free-open-source-social-network-server-based-on"},{"cve":"CVE-2025-67500","cvss":3.7,"epss":0.0022,"slug":"cve-2025-67500-mastodon-is-a-free-open-source-social-network-server-based-on","title":"Mastodon is a free, open-source social network server based on ActivityPub. Versions 4.2.27 and prior, 4.3.0-beta.1…","severity":"low","exploited":false,"published_at":"2025-12-10T00:16:11.27+00:00","url":"https://junglewise.ai/threats/cve-2025-67500-mastodon-is-a-free-open-source-social-network-server-based-on"}],"generated_at":"2026-11-12T03:07:00.164048+00:00"}