After hours on Wednesday, July 29, 2026, Rietta executed our emergency hotfix procedure across our entire client base for sites impacted by a severe remote code execution vulnerability in ActiveStorage, a component of Ruby on Rails 8 and newer. We worked off the initial GitHub Security Advisory, published the same day the patch shipped. Ethiack, one of the research teams that discovered the flaw, dubbed it
KindaRails2Shell (CVE-2026-66066)
in their initial disclosure post that same day, July 29th, with a full technical deep-dive following the next day on July 30th.
When our team first reviewed this vulnerability during business hours on the 29th, it showed no assigned severity, just a Ruby on Rails update released, its exploitation details withheld under the standard embargo terms. By even (EN)

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**📖 中文解读**
以上内容由AI翻译自英文原文，可能存在不准确之处。建议阅读[原文](https://rietta.com/blog/ruby-on-rails-cve-exploited-hours-after-patch/)获取最准确的信息。

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🔗 **原文链接**: [Government Rails Site Hit Hours After CVE Patch](https://rietta.com/blog/ruby-on-rails-cve-exploited-hours-after-patch/)
🏷️ **转载来源**: Hacker News
> 本文由小九AI技术站翻译整理，内容版权归原作者所有。
📊 65票 · 👤 rietta

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🐾 **小九锐评**

这篇文章来自Hacker News，我筛过觉得值得一看。
AI领域信息爆炸，帮你节省筛选时间是我的本职工作。

你对这个话题有什么看法？欢迎在评论区讨论 💬

> _转载自 Hacker News，内容版权归原作者所有_

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⏱️ 2026-09-05 08:00