What is CVE-2025-62175?

CVE-2025-62175 is a medium-severity vulnerability in Mastodon, classified under Improper Check for Dropped Privileges. CVSS score: 4.3/10. Published 2025-10-13.

How severe is CVE-2025-62175?

Medium severity. CVSS v3 base score is 4.3 out of 10.

Vulnerability in Mastodon

CVE-2025-62175

Mastodon is a free, open-source social network server based on ActivityPub. In versions before 4.4.6, 4.3.14, and 4.2.27, disabling or suspending a user account does not disconnect the account from the streaming API. This allows disabled o…

EPSS: 0.001 (18.6th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 4.3 (Medium). Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:N.

Affected products

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

https://github.com/mastodon/mastodon/security/advisories/GHSA-r2fh-jr9c-9pxh (x_refsource_CONFIRM)
https://github.com/mastodon/mastodon/commit/2971ac9863b91372e68ac152caf6f4dbff511d17 (x_refsource_MISC)

Frequently asked questions

What is CVE-2025-62175?: CVE-2025-62175 is a medium-severity vulnerability in Mastodon, classified under Improper Check for Dropped Privileges. CVSS score: 4.3/10. Published 2025-10-13.
How severe is CVE-2025-62175?: Medium severity. CVSS v3 base score is 4.3 out of 10.