Crass : Large numeric exponents cause CPU and memory denial of service

影響: rubygems:crass < 1.0.7 → 1.0.7

Crass converts CSS scientific notation number values with unbounded exponentiation before it clamps the result to Float::MAX. Applications that use Crass to parse attacker-controlled CSS strings can be forced to spend disproportionate CPU and memory parsing a tiny input, possibly resulting in a crash. Patches This is fixed in Crass 1.0.7. Related - https://github.com/rubysec/ruby-advisory-db/blob/master/gems/crass/GHSA-6wmf-3r64-vcwv.yml

在 GitHub Advisory Database 阅读

2026/10/20 23:32，GitHub Advisory Database 发布了“Crass : Large numeric exponents cause CPU and memory denial of service”（类型：漏洞公告）。严重程度为“高危”（high）。相关技术：Ruby、GitHub。CVE：CVE-2026-61845。