CVE-2024-23832: mastodon — Fix

Description

Mastodon is a free, open-source social network server based on ActivityPub Mastodon allows configuration of LDAP for authentication. Due to insufficient origin validation in all Mastodon, attackers can impersonate and take over any remote account. Every Mastodon version prior to 3.5.17 is vulnerable, as well as 4.0.x versions prior to 4.0.13, 4.1.x version prior to 4.1.13, and 4.2.x versions prior to 4.2.5.

Is your site exposed to CVE-2024-23832?

Run a free security scan — no signup, results in seconds.

CVSS v3.1 Score

9.4

CRITICAL

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:H/A:H

Weakness Type (CWE)

CWE-290 CWE-290

Affected Products

Vendor	Product	Versions
joinmastodon	mastodon	< 3.5.17
joinmastodon	mastodon	4.0.0 — 4.0.13
joinmastodon	mastodon	4.1.0 — 4.1.13
joinmastodon	mastodon	4.2.0 — 4.2.5

References

Advisories & Patches

http://www.openwall.com/lists/oss-security/2024/02/02/4 https://github.com/mastodon/mastodon/commit/1726085db5cd73dd30953da858f9887bcc90b958 https://github.com/mastodon/mastodon/security/advisories/GHSA-3fjr-858r-92rw http://www.openwall.com/lists/oss-security/2024/02/02/4 https://github.com/mastodon/mastodon/commit/1726085db5cd73dd30953da858f9887bcc90b958 https://github.com/mastodon/mastodon/security/advisories/GHSA-3fjr-858r-92rw

Frequently Asked Questions

What is CVE-2024-23832? +

Mastodon is a free, open-source social network server based on ActivityPub Mastodon allows configuration of LDAP for authentication. Due to insufficient origin validation in all Mastodon, attackers can impersonate and take over any remote account. Every Mastodon version prior to 3.5.17 is vulnerable, as well as 4.0.x versions prior to 4.0.13, 4.1.x version prior to 4.1.13, and 4.2.x versions prior to 4.2.5. It has a CVSS v3.1 base score of 9.4 (CRITICAL).

How severe is CVE-2024-23832? +

CVE-2024-23832 has a CVSS v3.1 score of 9.4 out of 10, rated CRITICAL. This is a critical vulnerability that should be patched immediately.

What products are affected by CVE-2024-23832? +

CVE-2024-23832 affects products from joinmastodon, specifically: mastodon. Check the affected products table above for specific version ranges.

How do I check if I'm vulnerable to CVE-2024-23832? +

You can use Secably's free Website Scanner to check your website for known vulnerabilities. For infrastructure scanning, use the Port Scanner to identify exposed services that may be affected. Check the vendor advisories linked above for specific patch and version information.

Related Vulnerabilities

CVE-2026-6213

A vulnerability in Remote Spark SparkView before build 1122 allows an attacker to bypasses the local connection check and achieve …

CVE-2026-34025

The Wertheim SafeController Software, AssemblyVersion 6.15.8328.28014, contains an IP restriction bypass vulnerability in the login process. The application restricts user …

CVE-2025-22271

The application or its infrastructure allows for IP address spoofing by providing its own value in the "X-Forwarded-For" header. Thus, …

CVE-2025-31122

scratch-coding-hut.github.io is the website for Coding Hut. In 1.0-beta3 and earlier, the login link can be used to login to …

CVE-2025-46345

Auth0 Account Link Extension is an extension aimed to help link accounts easily. Versions 2.3.4 to 2.6.6 do not verify …

CVE-2025-34053

An authentication bypass vulnerability exists in AVTECH IP camera, DVR, and NVR devices’ streamd web server. The strstr() function is …

CVE-2024-23832