{"id":"CVE-2023-23925","aliases":["EUVD-2023-0812","GHSA-wqxw-8h5g-hq56"],"status":"published","title":"Switcher Client contains Regular Expression Denial of Service (ReDoS)","description":"Switcher Client is a JavaScript SDK to work with Switcher API which is cloud-based Feature Flag. Unsanitized input flows into Strategy match operation (EXIST), where it is used to build a regular expression. This may result in a Regular expression Denial of Service attack (reDOS). This issue has been patched in version 3.1.4. As a workaround, avoid using Strategy settings that use REGEX in conjunction with EXIST and NOT_EXIST operations.","severity":{"version":"3.1","score":8.6,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:H","level":"high","assessor":"cna","from":"cve"},"epss":{"day":"2026-11-12","score":0.00541,"percentile":0.45968,"model":"v2026.06.15"},"facts":{"in_kev":false,"known_exploited":false,"public_exploit":false,"fix_available":true},"cwes":["CWE-1333","CWE-400"],"published":"2023-02-02T01:33:06Z","modified":"2026-10-28T02:30:44Z","fixes":[{"ecosystem":"npm","package":"switcher-client","fixed_in":["3.1.4"],"sources":["ghsa","osv"]}],"affected":[{"source":"ghsa","ecosystem":"npm","package":"switcher-client","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"3.1.4"}]}]},{"source":"osv","ecosystem":"npm","package":"switcher-client","ranges":[{"type":"SEMVER","events":[{"introduced":"0"},{"fixed":"3.1.4"}]}]}],"products":[{"vendor":"switcherapi","product":"switcher-client-master"},{"vendor":"switcherapi","product":"switcher_client"}],"references":[{"url":"https://github.com/switcherapi/switcher-client-master/security/advisories/GHSA-wqxw-8h5g-hq56","tags":["x_refsource_CONFIRM","x_transferred","Vendor Advisory","advisory","web"]},{"url":"https://github.com/switcherapi/switcher-client-master/releases/tag/v3.1.4","tags":["x_refsource_MISC","x_transferred","Release Notes","web"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2023-23925","tags":["advisory"]},{"url":"https://github.com/switcherapi/switcher-client-master/commit/374752563d6ce9353ee592b40c809c8136f24930","tags":["web"]},{"url":"https://github.com/advisories/GHSA-wqxw-8h5g-hq56"},{"url":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2023/23xxx/CVE-2023-23925.json","tags":["advisory"]},{"url":"https://github.com/switcherapi/switcher-client-master","tags":["package"]}],"sources":{"cve":[{"id":"CVE-2023-23925","title":"Switcher Client contains Regular Expression Denial of Service (ReDoS)","description":"Switcher Client is a JavaScript SDK to work with Switcher API which is cloud-based Feature Flag. Unsanitized input flows into Strategy match operation (EXIST), where it is used to build a regular expression. This may result in a Regular expression Denial of Service attack (reDOS). This issue has been patched in version 3.1.4. As a workaround, avoid using Strategy settings that use REGEX in conjunction with EXIST and NOT_EXIST operations.\n","status":"published","published":"2023-02-03T19:05:30.909Z","modified":"2025-03-10T21:17:13.979Z","cvss":[{"version":"3.1","score":8.6,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:H","level":"high","assessor":"cna"}],"cwes":["CWE-1333","CWE-400"],"updated_at":"2026-11-02T14:35:21.232549Z"}],"euvd":[{"id":"EUVD-2023-0812","description":"Switcher Client is a JavaScript SDK to work with Switcher API which is cloud-based Feature Flag. Unsanitized input flows into Strategy match operation (EXIST), where it is used to build a regular expression. This may result in a Regular expression Denial of Service attack (reDOS). This issue has been patched in version 3.1.4. As a workaround, avoid using Strategy settings that use REGEX in conjunction with EXIST and NOT_EXIST operations.\n","status":"published","published":"2023-02-03T19:05:30Z","modified":"2025-03-10T21:17:13Z","cvss":[{"version":"3.1","score":8.6,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:H","level":"high"}],"updated_at":"2026-11-02T20:53:08.584552Z"}],"ghsa":[{"id":"GHSA-wqxw-8h5g-hq56","title":"Switcher Client contains Regular Expression Denial of Service (ReDoS)","description":"### Impact\nUnsanitized input flows into Strategy match operation (EXIST), where it is used to build a regular expression. This may result in a Regular expression Denial of Service attack (reDOS).\n\n### Patches\nPatched in 3.1.4\n\n### Workarounds\nAvoid using Strategy settings that use REGEX in conjunction with EXIST and NOT_EXIST operations.","status":"published","published":"2023-02-02T01:33:06Z","modified":"2023-04-21T19:35:45Z","cvss":[{"version":"3.1","score":7.5,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H","level":"high"}],"cwes":["CWE-400","CWE-1333"],"updated_at":"2026-11-02T14:36:51.39133Z"}],"nvd":[{"id":"CVE-2023-23925","description":"Switcher Client is a JavaScript SDK to work with Switcher API which is cloud-based Feature Flag. Unsanitized input flows into Strategy match operation (EXIST), where it is used to build a regular expression. This may result in a Regular expression Denial of Service attack (reDOS). This issue has been patched in version 3.1.4. As a workaround, avoid using Strategy settings that use REGEX in conjunction with EXIST and NOT_EXIST operations.\n","status":"published","published":"2023-02-03T20:15:10.433Z","modified":"2026-06-17T05:38:18.08Z","cvss":[{"version":"3.1","score":8.6,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:H","level":"high","assessor":"secondary"},{"version":"3.1","score":7.5,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H","level":"high","assessor":"primary"}],"cwes":["CWE-400","CWE-1333"],"updated_at":"2026-11-02T14:07:46.064662Z"}],"osv":[{"id":"CVE-2023-23925","title":"Switcher Client contains Regular Expression Denial of Service (ReDoS)","description":"Switcher Client is a JavaScript SDK to work with Switcher API which is cloud-based Feature Flag. Unsanitized input flows into Strategy match operation (EXIST), where it is used to build a regular expression. This may result in a Regular expression Denial of Service attack (reDOS). This issue has been patched in version 3.1.4. As a workaround, avoid using Strategy settings that use REGEX in conjunction with EXIST and NOT_EXIST operations.\n","status":"published","published":"2023-02-03T19:05:30.909Z","modified":"2026-10-28T02:30:44.427233702Z","cvss":[{"version":"3.1","score":8.6,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:H","level":"high"}],"cwes":["CWE-1333","CWE-400"],"updated_at":"2026-11-02T15:44:30.709518Z"},{"id":"GHSA-wqxw-8h5g-hq56","title":"Switcher Client contains Regular Expression Denial of Service (ReDoS)","description":"### Impact\nUnsanitized input flows into Strategy match operation (EXIST), where it is used to build a regular expression. This may result in a Regular expression Denial of Service attack (reDOS).\n\n### Patches\nPatched in 3.1.4\n\n### Workarounds\nAvoid using Strategy settings that use REGEX in conjunction with EXIST and NOT_EXIST operations.","status":"published","published":"2023-02-02T01:33:06Z","modified":"2026-09-10T03:49:52.096137571Z","cvss":[{"version":"3.1","score":7.5,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H","level":"high"}],"cwes":["CWE-1333","CWE-400"],"updated_at":"2026-11-02T15:46:59.131095Z"}]}}