SB2026042384 - Observable discrepancy in Mastodon

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Main Vulnerability Database SB2026042384

SB2026042384 - Observable discrepancy in Mastodon

Published: April 23, 2026

Security Bulletin ID SB2026042384
CSH Severity
Low
Patch available
YES
Number of vulnerabilities 1
Exploitation vector Remote access
Highest impact Information disclosure

Breakdown by Severity

Low 100%
  • Low
  • Medium
  • High
  • Critical

Description

This security bulletin contains information about 1 vulnerability.


1) Observable discrepancy (CVE-ID: CVE-2025-67500)

CWE-ID: CWE-203 - Observable discrepancy

CVSSv4: CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:N/VC:L/VI:N/VA:N/SC:N/SI:N/SA:N/E:U/U:Clear


The vulnerability allows a remote attacker to disclose sensitive information.

The vulnerability exists due to inconsistent error handling in status lookup handling when processing requests with a non-English Accept-Language header. A remote attacker can send a request for a known status identifier to disclose sensitive information.

The issue only allows confirmation of whether a private status exists and cannot be used to learn its contents or other properties.


Remediation

Install update from vendor's website.

References