{"id":"CVE-2023-23925","aliases":["GHSA-wqxw-8h5g-hq56"],"url":"https://o3.security/vulnerability/CVE-2023-23925","summary":"Switcher Client contains Regular Expression Denial of Service (ReDoS)","details":"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","published":"2023-02-03T19:05:30.909Z","modified":"2026-08-27T03:57:00.925077815Z","cvss":{"score":8.6,"severity":"HIGH","vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:H"},"epss":null,"cisaKev":null,"exploitsKnown":0,"affectedPackages":[{"ecosystem":"npm","name":"switcher-client","fixedVersion":"3.1.4"}],"fix":null,"references":[{"type":"WEB","url":"https://github.com/switcherapi/switcher-client-master/releases/tag/v3.1.4"},{"type":"ADVISORY","url":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2023/23xxx/CVE-2023-23925.json"},{"type":"ADVISORY","url":"https://github.com/switcherapi/switcher-client-master/security/advisories/GHSA-wqxw-8h5g-hq56"},{"type":"ADVISORY","url":"https://nvd.nist.gov/vuln/detail/CVE-2023-23925"}],"provenance":{"sources":["OSV.dev","FIRST.org (EPSS)"],"lastVerified":"2026-08-27T03:57:00.925077815Z"}}