CVE-2025-67500 - Mastodon Error Handling Discrepancy Enables Private Status Existence Enumeration
CVE ID : CVE-2025-67500 Published : Dec. 10, 2025, 12:16 a.m. | 18 minutes ago Description : Mastodon is a free, open-source social network server based on ActivityPub. Versions 4.2.27 and prior, 4.3.0-beta.1 through 4.3.14, 4.4.0-beta.1 through 4.4.9, 4.5.0-beta.1 through 4.5.2 have discrepancies in error handling which allow checking whether a given status exists by sending a request with a non-English Accept-Language header. Using this behavior, an attacker who knows the identifier of a particular status they are not allowed to see can confirm whether this status exists or not. This cannot be used to learn the contents of the status or any other property besides its existence. This issue is fixed in versions 4.2.28, 4.3.15, 4.4.10 and 4.5.3. Severity: 3.7 | LOW Visit the link for more details, such as CVSS details, affected products, timeline, and more...
Source: Telegram CVE Monitor