{"id":"GHSA-jc97-h3h9-7xh6","summary":"Regular Expression Denial of Service in Deno.upgradeWebSocket API","details":"### Impact\nVersions 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. \n\n### Patches\nIt is recommended that users upgrade to Deno 1.31.0.\n\n","aliases":["CVE-2023-26103"],"modified":"2023-11-08T04:11:57.713363Z","published":"2023-04-03T17:18:51Z","database_specific":{"cwe_ids":["CWE-1333"],"severity":"MODERATE","github_reviewed":true,"github_reviewed_at":"2023-04-03T17:18:51Z","nvd_published_at":null},"references":[{"type":"WEB","url":"https://github.com/denoland/deno/security/advisories/GHSA-jc97-h3h9-7xh6"},{"type":"ADVISORY","url":"https://nvd.nist.gov/vuln/detail/CVE-2023-26103"},{"type":"WEB","url":"https://github.com/denoland/deno/pull/17722"},{"type":"WEB","url":"https://github.com/denoland/deno/commit/cf06a7c7e672880e1b38598fe445e2c50b4a9d06"},{"type":"PACKAGE","url":"https://github.com/denoland/deno"},{"type":"WEB","url":"https://github.com/denoland/deno/blob/2b247be517d789a37e532849e2e40b724af0918f/ext/http/01_http.js#L395-L409"},{"type":"WEB","url":"https://github.com/denoland/deno/releases/tag/v1.31.0"},{"type":"WEB","url":"https://security.snyk.io/vuln/SNYK-RUST-DENO-3315970"}],"affected":[{"package":{"name":"deno","ecosystem":"crates.io","purl":"pkg:cargo/deno"},"ranges":[{"type":"SEMVER","events":[{"introduced":"1.12.0"},{"fixed":"1.31.0"}]}],"database_specific":{"source":"https://github.com/github/advisory-database/blob/main/advisories/github-reviewed/2023/04/GHSA-jc97-h3h9-7xh6/GHSA-jc97-h3h9-7xh6.json"}}],"schema_version":"1.9.0","severity":[{"type":"CVSS_V3","score":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L"}]}