Vulnerability in Joinmastodon Mastodon
CVE-2025-62174
Mastodon is a free, open-source social network server based on ActivityPub. In Mastodon before 4.4.6, 4.3.14, and 4.2.27, when an administrator resets a user account's password via the command-line interface using `bin/tootctl accounts modify --reset-password`, active sessions and access tokens for that account are not revoked. This allows an attacker with access to a previously compromised session or token to continue using the account after the password has been reset. This issue has been patched in versions 4.2.27, 4.3.14, and 4.4.6. No known workarounds exist.
EPSS: 0.002 (9.8th percentile) — read the EPSS interpretation.
CVSS v3 metric
CVSS v3 base score 3.5 (Low). Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:U/C:L/I:N/A:N.
Affected products
- Joinmastodon Mastodon
- Mastodon — versions >= 4.4.0-beta.1, < 4.4.6, >= 4.3.0-beta.1, < 4.3.14, < 4.2.27
Weakness classification (CWE)
References
- security-advisories@github.com (x_refsource_CONFIRM, Vendor Advisory)
- security-advisories@github.com (Patch, x_refsource_MISC)
Frequently asked questions
- What is CVE-2025-62174?
- CVE-2025-62174 is a low-severity vulnerability in Joinmastodon Mastodon, classified under Insufficient Session Expiration. CVSS score: 3.5/10. Published 2025-10-13.
- How severe is CVE-2025-62174?
- Low severity. CVSS v3 base score is 3.5 out of 10.