CVE-2026-42503

{"id": "CVE-2026-42503", "cveTags": [], "metrics": {"cvssMetricV31": [{"type": "Secondary", "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "cvssData": {"scope": "UNCHANGED", "version": "3.1", "baseScore": 8.8, "attackVector": "ADJACENT_NETWORK", "baseSeverity": "HIGH", "vectorString": "CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H", "integrityImpact": "HIGH", "userInteraction": "NONE", "attackComplexity": "LOW", "availabilityImpact": "HIGH", "privilegesRequired": "NONE", "confidentialityImpact": "HIGH"}, "impactScore": 5.9, "exploitabilityScore": 2.8}]}, "published": "2026-05-06T17:16:23.417", "references": [{"url": "https://go.dev/cl/774381", "source": "security@golang.org"}, {"url": "https://go.dev/issue/79211", "source": "security@golang.org"}], "vulnStatus": "Awaiting Analysis", "weaknesses": [{"type": "Secondary", "source": "security@golang.org", "description": [{"lang": "en", "value": "CWE-1327"}]}], "descriptions": [{"lang": "en", "value": "gopls by default communicates via pipe. However, -port and -listen flags are supported as means of debugging.\nIf -listen is given a value without an explicit host (e.g. :8080), or -port is used, gopls will listen on 0.0.0.0.\u00a0\nAs a result, users might\u00a0inadvertently cause gopls to bind 0.0.0.0.\nThis can allow a\u00a0malicious party on the same network to execute code arbitrarily via gopls."}], "lastModified": "2026-05-07T15:53:49.717", "sourceIdentifier": "security@golang.org"}