CVE-2026-50018

{"id": "CVE-2026-50018", "cveTags": [], "metrics": {"ssvcV203": [{"source": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "ssvcData": {"id": "CVE-2026-50018", "role": "CISA Coordinator", "options": [{"exploitation": "poc"}, {"automatable": "no"}, {"technicalImpact": "partial"}], "version": "2.0.3", "timestamp": "2026-09-14T19:28:24.142551Z"}}], "cvssMetricV31": [{"type": "Secondary", "source": "security-advisories@github.com", "cvssData": {"scope": "UNCHANGED", "version": "3.1", "baseScore": 6.5, "attackVector": "NETWORK", "baseSeverity": "MEDIUM", "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H", "integrityImpact": "NONE", "userInteraction": "REQUIRED", "attackComplexity": "LOW", "availabilityImpact": "HIGH", "privilegesRequired": "NONE", "confidentialityImpact": "NONE"}, "impactScore": 3.6, "exploitabilityScore": 2.8}]}, "affected": [{"source": "security-advisories@github.com", "affectedData": [{"vendor": "SpectoLabs", "product": "hoverfly", "versions": [{"status": "affected", "version": "< 1.12.8"}]}]}], "published": "2026-09-11T22:16:37.950", "references": [{"url": "https://github.com/SpectoLabs/hoverfly/pull/1228", "source": "security-advisories@github.com"}, {"url": "https://github.com/SpectoLabs/hoverfly/releases/tag/v1.12.8", "source": "security-advisories@github.com"}, {"url": "https://github.com/SpectoLabs/hoverfly/security/advisories/GHSA-42j2-w334-qxw7", "source": "security-advisories@github.com"}, {"url": "https://github.com/SpectoLabs/hoverfly/security/advisories/GHSA-42j2-w334-qxw7", "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0"}], "vulnStatus": "Received", "weaknesses": [{"type": "Secondary", "source": "security-advisories@github.com", "description": [{"lang": "en", "value": "CWE-400"}, {"lang": "en", "value": "CWE-770"}]}], "descriptions": [{"lang": "en", "value": "Hoverfly is an open source API simulation tool. Prior to version 1.12.8, remote post-serve actions use `http.DefaultClient` without any timeout configuration. When the remote endpoint is unreachable or intentionally slow (accepts TCP connection but never responds), each triggered proxy request spawns a goroutine that blocks indefinitely on `http.DefaultClient.Do()`. An attacker can cause unbounded goroutine accumulation leading to memory exhaustion and process crash (OOM kill). Unlike local post-serve action execution, this requires no binary execution, only a URL pointing to a non-responsive endpoint. Version 1.12.8 patches the issue."}], "lastModified": "2026-09-14T20:16:44.783", "sourceIdentifier": "security-advisories@github.com"}