CVE-2026-2950

{"id": "CVE-2026-2950", "cveTags": [], "metrics": {"ssvcV203": [{"source": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "ssvcData": {"id": "CVE-2026-2950", "role": "CISA Coordinator", "options": [{"exploitation": "none"}, {"automatable": "yes"}, {"technicalImpact": "partial"}], "version": "2.0.3", "timestamp": "2026-04-01T13:43:14.280375Z"}}], "cvssMetricV31": [{"type": "Secondary", "source": "ce714d77-add3-4f53-aff5-83d477b104bb", "cvssData": {"scope": "UNCHANGED", "version": "3.1", "baseScore": 6.5, "attackVector": "NETWORK", "baseSeverity": "MEDIUM", "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:L", "integrityImpact": "LOW", "userInteraction": "NONE", "attackComplexity": "LOW", "availabilityImpact": "LOW", "privilegesRequired": "NONE", "confidentialityImpact": "NONE"}, "impactScore": 2.5, "exploitabilityScore": 3.9}, {"type": "Primary", "source": "nvd@nist.gov", "cvssData": {"scope": "UNCHANGED", "version": "3.1", "baseScore": 5.3, "attackVector": "NETWORK", "baseSeverity": "MEDIUM", "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N", "integrityImpact": "LOW", "userInteraction": "NONE", "attackComplexity": "LOW", "availabilityImpact": "NONE", "privilegesRequired": "NONE", "confidentialityImpact": "NONE"}, "impactScore": 1.4, "exploitabilityScore": 3.9}]}, "affected": [{"source": "ce714d77-add3-4f53-aff5-83d477b104bb", "affectedData": [{"vendor": "lodash", "product": "lodash", "versions": [{"status": "affected", "version": "4.17.23", "lessThan": "4.18.1", "versionType": "semver"}, {"status": "unaffected", "version": "4.18.1", "versionType": "semver"}], "packageURL": "pkg:npm/lodash", "defaultStatus": "unaffected"}, {"vendor": "lodash", "product": "lodash-es", "versions": [{"status": "affected", "version": "4.17.23", "lessThan": "4.18.1", "versionType": "semver"}, {"status": "unaffected", "version": "4.18.1", "versionType": "semver"}], "packageURL": "pkg:npm/lodash-es", "defaultStatus": "unaffected"}, {"vendor": "lodash", "product": "lodash-amd", "versions": [{"status": "affected", "version": "4.17.23", "lessThan": "4.18.1", "versionType": "semver"}, {"status": "unaffected", "version": "4.18.1", "versionType": "semver"}], "packageURL": "pkg:npm/lodash-amd", "defaultStatus": "unaffected"}, {"vendor": "lodash", "product": "lodash.unset", "versions": [{"status": "affected", "version": "0", "lessThan": "4.18.0", "versionType": "semver"}, {"status": "unaffected", "version": "4.18.0", "versionType": "semver"}], "packageURL": "pkg:npm/lodash.unset", "defaultStatus": "unaffected"}, {"vendor": "lodash", "product": "lodash.omit", "versions": [{"status": "affected", "version": "0", "lessThan": "4.18.0", "versionType": "semver"}, {"status": "unaffected", "version": "4.18.0", "versionType": "semver"}], "packageURL": "pkg:npm/lodash.omit", "defaultStatus": "unaffected"}]}], "published": "2026-03-31T20:16:26.207", "references": [{"url": "https://cna.openjsf.org/security-advisories.html", "source": "ce714d77-add3-4f53-aff5-83d477b104bb"}, {"url": "https://github.com/lodash/lodash/security/advisories/GHSA-f23m-r3pf-42rh", "source": "ce714d77-add3-4f53-aff5-83d477b104bb"}], "vulnStatus": "Modified", "weaknesses": [{"type": "Secondary", "source": "ce714d77-add3-4f53-aff5-83d477b104bb", "description": [{"lang": "en", "value": "CWE-1321"}]}], "descriptions": [{"lang": "en", "value": "The _.unset and _.omit functions in Lodash are vulnerable to prototype pollution. The fix for CVE-2025-13465 only guards against string key members, so an attacker can bypass the check by passing array-wrapped path segments. This allows deletion of properties from built-in prototypes such as Object.prototype, Number.prototype, and String.prototype. The issue permits deletion of prototype properties but does not allow overwriting their original behavior. The issue is patched from 4.18.0 to 4.18.1 depending on the package: lodash, lodash-es, and lodash-amd in 4.18.1, and the standalone lodash.unset and lodash.omit packages in 4.18.0."}, {"lang": "es", "value": "Impacto:\n\nLas versiones de Lodash 4.17.23 y anteriores son vulnerables a la contaminaci\u00f3n de prototipos en las funciones _.unset y _.omit. La soluci\u00f3n para (CVE-2025-13465: https://github.com/lodash/lodash/security/advisories/GHSA-xxjr-mmjv-4gpg) solo protege contra miembros de clave de tipo cadena, por lo que un atacante puede eludir la verificaci\u00f3n pasando segmentos de ruta envueltos en arrays. Esto permite la eliminaci\u00f3n de propiedades de prototipos incorporados como Object.prototype, Number.prototype y String.prototype.\n\nEl problema permite la eliminaci\u00f3n de propiedades de prototipo, pero no permite sobrescribir su comportamiento original.\n\nParches:\n\nEste problema est\u00e1 parcheado en 4.18.0.\n\nSoluciones alternativas:\n\nNinguna. Actualice a la versi\u00f3n parcheada."}], "lastModified": "2026-10-15T07:18:00.143", "configurations": [{"nodes": [{"negate": false, "cpeMatch": [{"criteria": "cpe:2.3:a:lodash:lodash:*:*:*:*:*:node.js:*:*", "vulnerable": true, "matchCriteriaId": "0F9E287B-784B-472D-9FA2-1469E4C8A810", "versionEndExcluding": "4.17.23", "versionStartIncluding": "4.0.0"}, {"criteria": "cpe:2.3:a:lodash:lodash-amd:*:*:*:*:*:node.js:*:*", "vulnerable": true, "matchCriteriaId": "3A1B5527-B25F-49B8-A289-E964EFFCF4E4", "versionEndExcluding": "4.17.23", "versionStartIncluding": "4.0.0"}, {"criteria": "cpe:2.3:a:lodash:lodash-es:*:*:*:*:*:node.js:*:*", "vulnerable": true, "matchCriteriaId": "4C20325C-6B92-4775-89D7-2650F158B622", "versionEndExcluding": "4.17.23", "versionStartIncluding": "4.0.0"}, {"criteria": "cpe:2.3:a:lodash:lodash.unset:*:*:*:*:*:node.js:*:*", "vulnerable": true, "matchCriteriaId": "43DC850D-9F26-4445-BAB1-9AF9BA37095C", "versionStartIncluding": "4.0.0"}], "operator": "OR"}]}], "sourceIdentifier": "ce714d77-add3-4f53-aff5-83d477b104bb"}