CVE-2023-26103 | BDVDB-2026-196205 Detail
deno
Description#
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.
Impact#
Per CVSS v3.1: confidentiality impact none, integrity impact none, availability impact low. Attack vector: network.
Weaknesses#
- CWE-1333 Regular Expression Denial of Service (ReDoS)
References#
- https://security.snyk.io/vuln/SNYK-RUST-DENO-3315970
- https://github.com/denoland/deno/blob/2b247be517d789a37e532849e2e40b724af0918f/ext/http/01_http.js%23L395-L409
- https://github.com/denoland/deno/pull/17722
- https://github.com/denoland/deno/commit/cf06a7c7e672880e1b38598fe445e2c50b4a9d06
- https://github.com/denoland/deno/releases/tag/v1.31.0
Exploit#
No public exploit known
History#
- Version 1Record published in the CVE List.
- Version 2Most recent update recorded in the CVE List.