Insufficient Session Expiration in Mastodon - CVE-2024-25619
Published: February 14, 2024 / Updated: April 23, 2026
Vulnerability identifier: #VU126970
CSH Severity: Low
CVSS v4: 2.3 [CVSS:4.0/AV:N/AC:L/AT:P/PR:L/UI:N/VC:L/VI:N/VA:N/SC:N/SI:N/SA:N]
CVE-ID: CVE-2024-25619
CWE-ID: CWE-613
Exploitation vector: Remote access
Exploit availability:
No public exploit available
Vulnerability details
The vulnerability allows a remote user to disclose sensitive information.
The vulnerability exists due to insufficient session expiration in the streaming server when processing streaming connections associated with destroyed OAuth applications. A remote user can use access tokens that were not invalidated in streaming to disclose sensitive information.
Exploitation was only possible through a user-created application on the user's own account.
Affected software
Mastodon
How to mitigate CVE-2024-25619
Install security update from vendor's website.
Mastodon - addressed in versions 3.5.18, 4.0.14, 4.1.14, 4.2.6