CVE-2025-54123: Hoverfly is vulnerable to Remote Code Execution through an insecure middleware implementation

CVE-2025-54123 · Severity: low · CVSS 3.1 · Published 2025-09-17

Hoverfly is vulnerable to Remote Code Execution through an insecure middleware implementation in github.com/SpectoLabs/hoverfly

Technologies: github.com/SpectoLabs/hoverfly (Go). Vendors: Go.

Quick answers

Is CVE-2025-54123 exploited in the wild?
No. Junglewise Threat Intelligence has no report of CVE-2025-54123 being exploited in the wild.
How severe is CVE-2025-54123?
Low severity, with a CVSS score of 3.1, published 17 September 2025.
Which products and versions are affected?
github.com/SpectoLabs/hoverfly (Go) SEMVER:introduced=0, SEMVER:introduced=0,last_affected=1.11.3.
Is there a fix for CVE-2025-54123?
No fixed version is recorded yet. Check the vendor's advisory in the references below. If you run it, Junglewise drafts a mitigation that fits your setup and applies it once you approve, with senior security engineers behind it.
Am I affected by CVE-2025-54123?
Check whether you run github.com/SpectoLabs/hoverfly (Go) at an affected version. Junglewise does that check for you around the clock: connect your code, cloud and domains, and it matches new vulnerabilities like this one against what you actually run and tells you when one reaches you.

Affected products

  • github.com/SpectoLabs/hoverfly (Go) SEMVER:introduced=0, SEMVER:introduced=0,last_affected=1.11.3

Identifiers

  • CVE-2025-54123
  • GHSA-r4h8-hfp2-ggmf
  • GO-2025-3944

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