RCE in Spectolabs Hoverfly
CVE-2025-54123
Hoverfly is an open source API simulation tool. In versions 1.11.3 and prior, the middleware functionality in Hoverfly is vulnerable to command injection vulnerability at `/api/v2/hoverfly/middleware` endpoint due to insufficient validatio…
Vulnerability class: Drupalgeddon 2 (CVE-2018-7600)
EPSS: 0.509 (97.9th percentile) — read the EPSS interpretation.
CVSS v3 metric
CVSS v3 base score 9.8 (Critical). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H.
Affected products
- Spectolabs Hoverfly — versions <= 1.11.3
Weakness classification (CWE)
Public proof-of-concept exploits
References
- https://github.com/SpectoLabs/hoverfly/security/advisories/GHSA-r4h8-hfp2-ggmf (x_refsource_CONFIRM)
- https://github.com/SpectoLabs/hoverfly/commit/17e60a9bc78826deb4b782dca1c1abd3dbe60d40 (x_refsource_MISC)
- https://github.com/SpectoLabs/hoverfly/commit/a9d4da7bd7269651f54542ab790d0c613d568d3e (x_refsource_MISC)
- https://github.com/SpectoLabs/hoverfly/blob/master/core/hoverfly_service.go#L173 (x_refsource_MISC)
- https://github.com/SpectoLabs/hoverfly/blob/master/core/middleware/local_middleware.go#L13 (x_refsource_MISC)
- https://github.com/SpectoLabs/hoverfly/blob/master/core/middleware/middleware.go#L93 (x_refsource_MISC)
Frequently asked questions
- What is CVE-2025-54123?
- CVE-2025-54123 is a critical-severity vulnerability in Spectolabs Hoverfly, classified under Improper Input Validation. CVSS score: 9.8/10. Published 2025-09-10.
- How severe is CVE-2025-54123?
- Critical severity. CVSS v3 base score is 9.8 out of 10.
- Is CVE-2025-54123 known to be exploited?
- 9 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.