CVE-2023-23925: Switcherapi Switcher Client

High severity, CVSS 7.5. EPSS: 0.5% chance of exploitation in the next 30 days.

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.

Affected products

• Switcherapi Switcher Client: before 3.1.4 (fixed in 3.1.4)

Published 2023-02-03. Last modified 2026-06-17.