CVE-2026-3846

{"id": "CVE-2026-3846", "cveTags": [], "metrics": {"cvssMetricV31": [{"type": "Secondary", "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "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:H/A:N", "integrityImpact": "HIGH", "userInteraction": "REQUIRED", "attackComplexity": "LOW", "availabilityImpact": "NONE", "privilegesRequired": "NONE", "confidentialityImpact": "NONE"}, "impactScore": 3.6, "exploitabilityScore": 2.8}]}, "published": "2026-03-10T18:19:05.673", "references": [{"url": "https://bugzilla.mozilla.org/show_bug.cgi?id=2018400", "tags": ["Permissions Required"], "source": "security@mozilla.org"}, {"url": "https://www.mozilla.org/security/advisories/mfsa2026-19/", "tags": ["Vendor Advisory"], "source": "security@mozilla.org"}], "vulnStatus": "Analyzed", "weaknesses": [{"type": "Secondary", "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "description": [{"lang": "en", "value": "CWE-346"}]}], "descriptions": [{"lang": "en", "value": "Same-origin policy bypass in the CSS Parsing and Computation component. This vulnerability affects Firefox < 148.0.2."}, {"lang": "es", "value": "Elusi\u00f3n de la pol\u00edtica del mismo origen en el componente de an\u00e1lisis y c\u00e1lculo de CSS. Esta vulnerabilidad afecta a Firefox &lt; 148.0.2."}], "lastModified": "2026-03-11T15:56:27.857", "configurations": [{"nodes": [{"negate": false, "cpeMatch": [{"criteria": "cpe:2.3:a:mozilla:firefox:*:*:*:*:-:*:*:*", "vulnerable": true, "matchCriteriaId": "30996A31-AEAC-4DDF-8B3A-A24A6EFB1728", "versionEndExcluding": "148.0.2"}], "operator": "OR"}]}], "sourceIdentifier": "security@mozilla.org"}