SB20240930100 - Inefficient regular expression complexity in Mastodon
Published: September 30, 2024 Updated: April 23, 2026
Security Bulletin ID
SB20240930100
CSH Severity
Medium
Patch available
YES
Number of vulnerabilities
1
Exploitation vector
Remote access
Highest impact
Denial of service
Breakdown by Severity
- Low
- Medium
- High
- Critical
Description
This security bulletin contains information about 1 vulnerability.
1) Inefficient regular expression complexity (CVE-ID: N/A)
CWE-ID: CWE-1333 - Inefficient Regular Expression Complexity
CVSSv4: CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N/E:U/U:Green
The vulnerability allows a remote attacker to cause a denial of service.
The vulnerability exists due to inefficient regular expression complexity in regular expressions when processing specifically crafted queries. A remote attacker can send specifically crafted queries to cause a denial of service.
This does not affect servers running on Ruby 3.3.
Remediation
Install update from vendor's website.