CVE-2026-54463

描述

### Impact The frame format in draft versions of the WebSocket protocol includes a length header that allows an arbitrarily large integer to be encoded as a sequence of bytes with the high bit set. By sending an indefinite sequence of bytes with values `0x80` or above, a server or client can make the other peer parse these bytes into an ever-growing integer. Since Ruby integers are arbitrary precision, this can be used to make a WebSocket connection consume an unbounded amount of memory and lead to the host process running out of memory. ### Patches The issue has been patched in version 0.8.1. All users should upgrade to this version. ### Workarounds No known workarounds exist. ### Acknowledgements This issue was discovered and reported by Pranjali Thakur, DepthFirst Security Research Team.

如何修補 CVE-2026-54463

要修補 CVE-2026-54463,請將受影響套件升級到下列已修補版本。

• —升級至 0.8.1 或更新版本

CVE-2026-54463 正在被利用嗎?

目前沒有被利用訊號。CVE-2026-54463 既不在 CISA KEV 也沒有最新的 EPSS 分數。

受影響套件(1)

• from 0, < 0.8.1

CVSS 分數

參考連結(5)

• PATCHgithub.com/faye/websocket-driver-ruby
• WEBgithub.com/faye/websocket-driver-ruby/releases/tag/0.8.1
• WEBgithub.com/faye/websocket-driver-ruby/security/advisories/GHSA-ghhp-3qvg-889p
• WEBgithub.com/rubysec/ruby-advisory-db/blob/master/gems/websocket-driver/CVE-2026-54463.yml