Input validation error in graphql-ruby - #VU130247
Published: May 6, 2026
Vulnerability identifier: #VU130247
CSH Severity: Medium
CVSSv4.0: CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:L/SC:N/SI:N/SA:N/E:U/U:Green
CVE-ID: N/A
CWE-ID: CWE-20
Exploitation vector: Remote access
Exploit availability:
No public exploit available
Vulnerable software:
graphql-ruby
graphql-ruby
Software vendor:
Robert Mosolgo
Robert Mosolgo
Description
The vulnerability allows a remote attacker to perform a denial of service (DoS) attack.
The vulnerability exists due to the Ruby lexer does not count comment tokens for the purposes of max_query_string_tokens. A remote attacker can pass specially crafted input to the application and perform a denial of service (DoS) attack.
Remediation
Install updates from vendor's website.