{"id":"GHSA-gxpj-cx7g-858c","summary":"Regular Expression Denial of Service in debug","details":"Affected versions of `debug` are vulnerable to regular expression denial of service when untrusted user input is passed into the `o` formatter. \n\nAs it takes 50,000 characters to block the event loop for 2 seconds, this issue is a low severity issue.\n\nThis was later re-introduced in version v3.2.0, and then repatched in versions 3.2.7 and 4.3.1.\n\n## Recommendation\n\nVersion 2.x.x: Update to version 2.6.9 or later.\nVersion 3.1.x: Update to version 3.1.0 or later.\nVersion 3.2.x: Update to version 3.2.7 or later.\nVersion 4.x.x: Update to version 4.3.1 or later.","aliases":["CVE-2017-16137"],"modified":"2026-07-17T21:09:18.413322113Z","published":"2018-08-09T20:18:07Z","database_specific":{"nvd_published_at":null,"cwe_ids":["CWE-400"],"severity":"LOW","github_reviewed":true,"github_reviewed_at":"2020-06-16T21:38:18Z"},"references":[{"type":"ADVISORY","url":"https://nvd.nist.gov/vuln/detail/CVE-2017-16137"},{"type":"WEB","url":"https://github.com/debug-js/debug/issues/797"},{"type":"WEB","url":"https://github.com/visionmedia/debug/issues/501"},{"type":"WEB","url":"https://github.com/visionmedia/debug/pull/504"},{"type":"WEB","url":"https://github.com/debug-js/debug/commit/4e2150207c568adb9ead8f4c4528016081c88020"},{"type":"WEB","url":"https://github.com/debug-js/debug/commit/71169065b5262f9858ac78cc0b688c84a438f290"},{"type":"WEB","url":"https://github.com/debug-js/debug/commit/b6d12fdbc63b483e5c969da33ea6adc09946b5ac"},{"type":"WEB","url":"https://github.com/debug-js/debug/commit/f53962e944a87e6ca9bb622a2a12dffc22a9bb5a"},{"type":"PACKAGE","url":"https://github.com/visionmedia/debug"},{"type":"WEB","url":"https://lists.apache.org/thread.html/r8ba4c628fba7181af58817d452119481adce4ba92e889c643e4c7dd3@%3Ccommits.netbeans.apache.org%3E"},{"type":"WEB","url":"https://lists.apache.org/thread.html/rb5ac16fad337d1f3bb7079549f97d8166d0ef3082629417c39f12d63@%3Cnotifications.netbeans.apache.org%3E"}],"affected":[{"package":{"name":"debug","ecosystem":"npm","purl":"pkg:npm/debug"},"ranges":[{"type":"SEMVER","events":[{"introduced":"0"},{"fixed":"2.6.9"}]}],"database_specific":{"source":"https://github.com/github/advisory-database/blob/main/advisories/github-reviewed/2018/08/GHSA-gxpj-cx7g-858c/GHSA-gxpj-cx7g-858c.json"}},{"package":{"name":"debug","ecosystem":"npm","purl":"pkg:npm/debug"},"ranges":[{"type":"SEMVER","events":[{"introduced":"3.0.0"},{"fixed":"3.1.0"}]}],"database_specific":{"source":"https://github.com/github/advisory-database/blob/main/advisories/github-reviewed/2018/08/GHSA-gxpj-cx7g-858c/GHSA-gxpj-cx7g-858c.json"}},{"package":{"name":"debug","ecosystem":"npm","purl":"pkg:npm/debug"},"ranges":[{"type":"SEMVER","events":[{"introduced":"3.2.0"},{"fixed":"3.2.7"}]}],"database_specific":{"source":"https://github.com/github/advisory-database/blob/main/advisories/github-reviewed/2018/08/GHSA-gxpj-cx7g-858c/GHSA-gxpj-cx7g-858c.json"}},{"package":{"name":"debug","ecosystem":"npm","purl":"pkg:npm/debug"},"ranges":[{"type":"SEMVER","events":[{"introduced":"4.0.0"},{"fixed":"4.3.1"}]}],"database_specific":{"source":"https://github.com/github/advisory-database/blob/main/advisories/github-reviewed/2018/08/GHSA-gxpj-cx7g-858c/GHSA-gxpj-cx7g-858c.json"}}],"schema_version":"1.9.0","severity":[{"type":"CVSS_V3","score":"CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:L"}]}