CVE-2026-46727

01/תיאור (מקור, אנגלית)

An issue was discovered in Ruby 4 before 4.0.5. A race condition leading to a use-after-free in the pthread-based getaddrinfo timeout handler (rb_getaddrinfo in ext/socket/raddrinfo.c) allows a remote attacker who can delay DNS responses near the user-specified timeout to crash a Ruby process that calls Addrinfo.getaddrinfo(..., timeout:) or Socket.tcp(..., resolv_timeout:). Memory-corruption-based exploitation is theoretically possible. The attack could, for example, be carried out through a crafted authoritative DNS server or recursive resolver.

02/מוצרים מושפעים

ruby-lang: ruby

03/קישורים2

• www.ruby-lang.org/en/news/2026/05/20/getaddrinfo-cve-2026-46727/ Vendor Advisory
• hackerone.com/reports/3607434 Permissions Required