CVE-2026-46690

{"id": "CVE-2026-46690", "cveTags": [], "metrics": {"cvssMetricV31": [{"type": "Secondary", "source": "security-advisories@github.com", "cvssData": {"scope": "UNCHANGED", "version": "3.1", "baseScore": 5.8, "attackVector": "LOCAL", "baseSeverity": "MEDIUM", "vectorString": "CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:L/I:L/A:H", "integrityImpact": "LOW", "userInteraction": "NONE", "attackComplexity": "HIGH", "availabilityImpact": "HIGH", "privilegesRequired": "LOW", "confidentialityImpact": "LOW"}, "impactScore": 4.7, "exploitabilityScore": 1.0}]}, "published": "2026-06-12T16:16:29.197", "references": [{"url": "https://github.com/spearman/unbounded-spsc/security/advisories/GHSA-6m57-8r3p-pqx6", "source": "security-advisories@github.com"}, {"url": "https://github.com/spearman/unbounded-spsc/security/advisories/GHSA-6m57-8r3p-pqx6", "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0"}], "vulnStatus": "Awaiting Analysis", "weaknesses": [{"type": "Secondary", "source": "security-advisories@github.com", "description": [{"lang": "en", "value": "CWE-125"}, {"lang": "en", "value": "CWE-415"}, {"lang": "en", "value": "CWE-704"}, {"lang": "en", "value": "CWE-787"}]}], "descriptions": [{"lang": "en", "value": "unbounded_spsc is an \"unbounded\" extension of bounded_spsc_queue. In versions 0.2.0 and prior, sender::send pointer-as-value transmute causes OOB read and fake-Arc drop under TX/RX race. At time of publication, there are no publicly available patches."}], "lastModified": "2026-06-12T17:16:23.640", "sourceIdentifier": "security-advisories@github.com"}