VULNERABILITY INTELLIGENCE

CVE-2023-23925

CVSS score8.6 HIGH

EPSS probability0.54%

CISA KEVNot currently listed

Published2023-02-03

Last modified2026-06-17

CVSS vectorCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:H

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.

Weakness classification

CWE-400: Uncontrolled Resource Consumption
CWE-1333: Inefficient Regular Expression Complexity

Primary references

security-advisories@github.com — Release Notes
security-advisories@github.com — Vendor Advisory
af854a3a-2127-422b-91ae-364da2661108 — Release Notes
af854a3a-2127-422b-91ae-364da2661108 — Vendor Advisory