PatchTheCVECVE-2023-23925: Switcher Client is a JavaScript SDK to work with Switcher API which is cloud-based Feature Flag
CVE-2023-23925 is a high-severity flaw (CVSS 8.6) affecting switcher client. Below: why it ranks where it does, which versions are affected, what to do, and the exact commands.
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.
Why this priority
- High severity
- Remotely exploitable, no login, no user action
A fixed release or distro patch exists.
Last updated 2026-06-17 · Sources: CVE Program, NVD, CISA KEV, EPSS and vendor advisories · How we score
Am I affected?
Timeline
- Published CVE record published
- Updated Record last modified
Scores and fixes here are computed automatically from those and other public sources. Confirm with the vendor advisory before changing production systems.
Quick answers
How do I fix CVE-2023-23925?
switcher client: upgrade to 3.1.4. Exact commands for each OS are on this page.
Is CVE-2023-23925 being exploited?
CVE-2023-23925 is not on the CISA Known Exploited Vulnerabilities list at the time of the last update. Check again, as this can change.
What does CVE-2023-23925 affect?
CVE-2023-23925 affects switcher client. Severity is high (CVSS 8.6). 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 exp
How urgent is CVE-2023-23925?
Priority 46/100. High severity; Remotely exploitable, no login, no user action