CVE-2023-26103

https://notcve.org/view.php?id=CVE-2023-26103

Versions of the package deno before 1.31.0 are vulnerable to Regular Expression Denial of Service (ReDoS) due to the upgradeWebSocket function, which contains regexes in the form of /s*,s*/, used for splitting the Connection/Upgrade header. A specially crafted Connection/Upgrade header can be used to significantly slow down a web socket server. • https://github.com/denoland/deno/blob/2b247be517d789a37e532849e2e40b724af0918f/ext/http/01_http.js%23L395-L409 https://github.com/denoland/deno/commit/cf06a7c7e672880e1b38598fe445e2c50b4a9d06 https://github.com/denoland/deno/pull/17722 https://github.com/denoland/deno/releases/tag/v1.31.0 https://security.snyk.io/vuln/SNYK-RUST-DENO-3315970 • CWE-1333: Inefficient Regular Expression Complexity •