Switcher Client contains Regular Expression Denial of Service (ReDoS) (CVE-2023-23925) | HOL Guard CVE

High · CVSS 7.5CVE-2023-23925GHSA-WQXW-8H5G-HQ56

Switcher Client contains Regular Expression Denial of Service (ReDoS)

Answer in brief

CVE-2023-23925 records a High severity (CVSS 7.5) vulnerability in Switcher Client contains Regular Expression Denial of Service (ReDoS). The current sources do not mark it as known exploited. The current feed maps switcher-client (npm). Check affected ranges and fixed versions before updating.

Analysis pending evidence review

HOL Guard separates source facts from reviewed analysis. See the methodology.

Published Feb 2, 2023Updated Sep 10, 2026Source checked Sep 10, 2026First seen by HOL Sep 10, 2026Material review Sep 10, 2026

Upstream Advisory

Key facts

Risk: High · CVSS 7.5
Exploitation: Not marked as known exploited
Affected software: 1 mapped package or product
Fix availability: Available

Why this deserves its current priority

CVSS is 7.5. The current sources do not mark it as known exploited. Treat this as a source-backed prioritization signal, not a statement about your environment.

Analysis status

Analysis pending evidence review

Factual feed record only; HOL analysis is not approved for indexing. Read the methodology.

Affected scope and exposure questions

The current feed maps switcher-client (npm). Check affected ranges and fixed versions before updating.

Mapped affected packages and fixed versions
Package	Affected range	Fixed version
switcher-clientnpm	>=0 <3.1.4	3.1.4

Recommended response

Check inventory. Check lockfiles and deployed manifests for switcher-client.
Review the reported fix. Update switcher-client to 3.1.4 if you use the affected versions. Test the change in a non-production environment first.

Evidence timeline and material changes

Published upstream
Feb 2, 2023
Evidence: source:osv:source_dates:source-dates:record
Source modified
Sep 10, 2026
Evidence: source:osv:source_dates:source-dates:record
First seen by HOL
Sep 10, 2026

Sources and claim methodology

Upstream source description

### Impact 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). ### Patches Patched in 3.1.4 ### Workarounds Avoid using Strategy settings that use REGEX in conjunction with EXIST and NOT_EXIST operations.

Quoted source text, attributed separately from HOL analysis.