Known Vulnerabilities for Mastodon by Joinmastodon

Listed below are 5 of the newest known vulnerabilities associated with "Mastodon" by "Joinmastodon".

These CVEs are retrieved based on exact matches on listed software, hardware, and vendor information (CPE data) as well as a keyword search to ensure the newest vulnerabilities with no officially listed software information are still displayed.

Data on known vulnerable versions is also displayed based on information from known CPEs

Known Vulnerabilities

CVE Shortened Description Severity Publish Date Last Modified
CVE-2026-33869 Mastodon is a free, open-source social network server based on ActivityPub. In versions on the 4.5.x branch prior to 4.5.8 an... Not Provided 2026-03-27 2026-03-27
CVE-2026-33868 Mastodon is a free, open-source social network server based on ActivityPub. Prior to versions 4.5.8, 4.4.15, and 4.3.21, an u... Not Provided 2026-03-27 2026-03-31
CVE-2025-22660 Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting') vulnerability in Wolfgang Include Mastod... Not Provided 2025-03-27 2026-04-01
CVE-2022-24307 Mastodon before 3.3.2 and 3.4.x before 3.4.6 has incorrect access control because it does not compact incoming signed JSON-LD... 9.8 - CRITICAL 2022-02-03 2022-02-09
CVE-2022-0432 Prototype Pollution in GitHub repository mastodon/mastodon prior to 3.5.0. 6.1 - MEDIUM 2022-02-02 2022-02-05
CVE-2018-21018 Mastodon before 2.6.3 mishandles timeouts of incompletely established sessions. 9.8 - CRITICAL 2019-09-22 2019-09-23

Known Affected Configurations (CPE V2.3)

Type Vendor Product Version Update Edition Language
ApplicationJoinmastodonMastodon2.9.3AllAllAll
ApplicationJoinmastodonMastodon2.9.2AllAllAll
ApplicationJoinmastodonMastodon2.9.1AllAllAll
ApplicationJoinmastodonMastodon2.9.0-AllAll
ApplicationJoinmastodonMastodon2.9.0rc1AllAll
ApplicationJoinmastodonMastodon2.9.0rc2AllAll
ApplicationJoinmastodonMastodon2.8.4AllAllAll
ApplicationJoinmastodonMastodon2.8.3AllAllAll
ApplicationJoinmastodonMastodon2.8.2AllAllAll
ApplicationJoinmastodonMastodon2.8.1AllAllAll
ApplicationJoinmastodonMastodon2.8.0-AllAll
ApplicationJoinmastodonMastodon2.8.0rc1AllAll
ApplicationJoinmastodonMastodon2.8.0rc2AllAll
ApplicationJoinmastodonMastodon2.8.0rc3AllAll
ApplicationJoinmastodonMastodon2.7.4AllAllAll
ApplicationJoinmastodonMastodon2.7.3AllAllAll
ApplicationJoinmastodonMastodon2.7.2AllAllAll
ApplicationJoinmastodonMastodon2.7.1AllAllAll
ApplicationJoinmastodonMastodon2.7.0-AllAll
ApplicationJoinmastodonMastodon2.7.0rc1AllAll
Results limited to 20 most recent known configurations
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