What it is
CVE-2024-45388 is an unauthenticated vulnerability affecting SpectoLabs hoverfly. Hoverfly is a lightweight service virtualization/ API simulation / API mocking tool for developers and testers. The...
Vulnerability report
Exploited in the wild
High confidence
Not in CISA KEV
CVE-2024-45388
hoverfly Arbitrary File Access
SpectoLabs / hoverfly · affected before 1.10.3
- Severity
- CVSS 7.5 · High
- Confidence
- High
- Exploit status
- Exploited in the wild
- EPSS
- 55.9%
- First observed
- —
- Last observed
- —
Decision summary
What security teams need to know first
Direct answers before the deeper technical record.
Is it exploited?
Yes. KEV Intelligence tracks this CVE as a known exploited vulnerability. Confidence is high.
Who is affected?
SpectoLabs / hoverfly affected before 1.10.3.
What should we do?
Prioritize remediation. Validate affected assets and apply vendor fixes on an accelerated timeline.
Overview
Hoverfly is a lightweight service virtualization/ API simulation / API mocking tool for developers and testers
Hoverfly is a lightweight service virtualization/ API simulation / API mocking tool for developers and testers. The `/api/v2/simulation` POST handler allows users to create new simulation views from the contents of a user-specified file. This feature can be abused by an attacker to read arbitrary files from the Hoverfly server. Note that, although the code prevents absolute paths from being specified, an attacker can escape out of the `hf.Cfg.ResponsesBodyFilesPath` base path by using `../` segments and reach any arbitrary files.
This issue was found using the Uncontrolled data used in path expression CodeQL query for python. Users are advised to make sure the final path (`filepath.Join(hf.Cfg.ResponsesBodyFilesPath, filePath)`) is contained within the expected base path (`filepath.Join(hf.Cfg.ResponsesBodyFilesPath, "/")`). This issue is also tracked as GHSL-2023-274.
Vendor
Product
Affected
Status
spectolabs
hoverfly
Before 1.10.3
Affected
SpectoLabs
hoverfly
Before 1.10.3
Affected
- Published
- 02 Sep 2024
- Exploitation Reported
- 14 Feb 2026
- Attack vector
- Remote
- Complexity
- Low
- Privileges
- None
- User interaction
- None
Tags
nuclei_scanner
CVE References
- CVE Record CVE.org · CVE Record https://www.cve.org/CVERecord?id=CVE-2024-45388
- https://github.com/SpectoLabs/hoverfly/security/advisories/GHSA-6xx4-x46f-f897 github.com · CVE Record https://github.com/SpectoLabs/hoverfly/security/advisories/GHSA-6xx4-...
- https://codeql.github.com/codeql-query-help/go/go-path-injection codeql.github.com · CVE Record https://codeql.github.com/codeql-query-help/go/go-path-injection
- https://github.com/SpectoLabs/hoverfly/releases/tag/v1.10.3 github.com · CVE Record https://github.com/SpectoLabs/hoverfly/releases/tag/v1.10.3
- https://github.com/spectolabs/hoverfly/blob/15d6ee9ea4e0de67aec5a41c28d21dc147243da0/core/handlers/v2/simulation_handler.go#L87 github.com · CVE Record https://github.com/spectolabs/hoverfly/blob/15d6ee9ea4e0de67aec5a41c2...
Exploitation evidence
Why KEV Intelligence marks this CVE as exploited
Third-party attestation and first-party sensor observation are shown separately so teams can judge the evidence chain.
Exploited in the wild
The Shadowserver
Independent exploitation attestation added to the KEV Intelligence record.
Proof of concept available
Nuclei Templates
Public scanner or PoC coverage increases practical exploitability.
Known exploited vulnerability sources
Per-source evidence links for KEV attestations are available through the KEV Intelligence Pro API.
Learn about Pro API access| Source | Added |
|---|---|
| The Shadowserver First | 2026-02-14 00:00 UTC |
Detection
Operational artifacts and observed signals
Make the evidence actionable in scanner, SOC, and edge-control workflows.
Observed signals
- Request targets
- 0
- User-Agents
- 0
Raw values available in Pro and Enterprise.
Scanner coverage
Nuclei template detected 25 Apr 2025.
View Nuclei template (opens in new tab)Virtual patch status
No KEV Intelligence virtual patch is currently available. Future rules ship for ModSecurity, Cloudflare, and AWS WAF.
Learn about virtual patches →Scanner Artifacts
Scanner and exploit-framework references linked to this CVE.
| Scanner | Reference | Detected |
|---|---|---|
| Nuclei | https://github.com/projectdiscovery/nuclei-templates/blob/main/http/cves/2024/CVE-2024-45388.yaml | 25 Apr 2025 |
Risk and context
Severity, weaknesses, and research context
CVSS v3.1
7.5
High
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N
EPSS
55.9%
Potential Proof of Concepts
These PoCs are unverified and could contain malware. Use at your own risk.
Hoverfly < 1.10.3 - Arbitrary File Read
nuclei · Created Unknown
Timeline
From disclosure to observed exploitation
-
Public PoC available
Public proof-of-concept code published
-
Added to KEV Intelligence KEV Feed
High-confidence, third-party attested exploitation
-
Nuclei template available
Scanner coverage available
-
CVE published
Vulnerability disclosed publicly
-
CVE ID reserved
Identifier reserved by the CNA
Pro API
Automate this intelligence
Confidence, exploit status, sensor telemetry, PoCs, scanner integrations, mentions, and tags are available programmatically for VM, SOC, and CTI workflows.
- Evidence confidence and provenance
- First-party sensor telemetry
- PoC and scanner references
- Affected versions and enrichment
- Automation-ready JSON delivery
GET /api/v2/pro/kevs/CVE-2024-45388
Free JSON includes basic KEV fields{
"cve_id": "CVE-2024-45388",
"confidence": "High",
"cvss_score": 7.5,
"cvss_estimated": false,
"epss_score": 0.5585,
"exploit_status": {
"exploited_in_the_wild": true,
"active_exploitation_observed": false
},
"sensor_telemetry": { "attempts": 0, "sensors": 0 }
}Early warning alerts
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