UpHeron
All vulnerabilities

Servers and applications

CVE-2024-25623

Mastodon is a free, open-source social network server based on ActivityPub. Prior to versions 4.2.7, 4.1.15, 4.0.15, and 3.5.19, when fetching remote statuses, Mastodon doesn't check that the response from the remote server has a `Content-Type` header value of the Activity Streams media type, which allows a threat actor to upload a crafted Activity Streams document to a remote server and make a…

Severity
High 7.7
Published
19 Feb 2024
Last changed
17 Jun 2026
Added to UpHeron
1 Nov 2026
Fixed in
3.5.19, 4.0.15, 4.1.15, 4.2.7
Sources
NVD

Affected software

SoftwareAffected versions
MastodonServers and applications · cpe:a:joinmastodon:mastodon
  • Every version before 3.5.19
  • From 4.0.0 before 4.0.15
  • From 4.1.0 before 4.1.15
  • From 4.2.0 before 4.2.7

References

  • NVD https://nvd.nist.gov/vuln/detail/CVE-2024-25623
  • CVE.org https://www.cve.org/CVERecord?id=CVE-2024-25623