CVE-2026-118772

{"id": "CVE-2026-118772", "cveTags": [], "metrics": {"cvssMetricV31": [{"type": "Secondary", "source": "security-advisories@github.com", "cvssData": {"scope": "UNCHANGED", "version": "3.1", "baseScore": 7.5, "attackVector": "NETWORK", "baseSeverity": "HIGH", "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H", "integrityImpact": "NONE", "userInteraction": "NONE", "attackComplexity": "LOW", "availabilityImpact": "HIGH", "privilegesRequired": "NONE", "confidentialityImpact": "NONE"}, "impactScore": 3.6, "exploitabilityScore": 3.9}]}, "affected": [{"source": "security-advisories@github.com", "affectedData": [{"vendor": "hapijs", "product": "joi", "versions": [{"status": "affected", "version": ">= 16.0.0, <= 17.1.1"}, {"status": "affected", "version": ">= 18.0.0, < 18.3.1"}]}, {"vendor": "@hapi", "product": "joi", "versions": [{"status": "affected", "version": ">= 16.0.0, <= 17.1.1"}]}]}], "published": "2026-10-29T19:17:19.563", "references": [{"url": "https://github.com/hapijs/joi/commit/03dc1d909818503b06240dadc81e9227ed2649cf", "source": "security-advisories@github.com"}, {"url": "https://github.com/hapijs/joi/commit/807858d7480f5075b0610817e3e44230890fb18e", "source": "security-advisories@github.com"}, {"url": "https://github.com/hapijs/joi/pull/3162", "source": "security-advisories@github.com"}, {"url": "https://github.com/hapijs/joi/pull/3163", "source": "security-advisories@github.com"}, {"url": "https://github.com/hapijs/joi/releases/tag/v17.13.9", "source": "security-advisories@github.com"}, {"url": "https://github.com/hapijs/joi/releases/tag/v18.3.1", "source": "security-advisories@github.com"}, {"url": "https://github.com/hapijs/joi/security/advisories/GHSA-4528-x5fx-h6hg", "source": "security-advisories@github.com"}], "vulnStatus": "Awaiting Analysis", "weaknesses": [{"type": "Primary", "source": "security-advisories@github.com", "description": [{"lang": "en", "value": "CWE-1333"}]}], "descriptions": [{"lang": "en", "value": "joi is a schema description language and data validator for JavaScript. From 17.1.1 until 17.13.9 and 18.3.1, the Joi.string().email({ multiple: true }) rule uses a separator regular expression whose leading whitespace quantifier is retried at every position in a long whitespace run that contains no separator, causing quadratic work during String.prototype.split. The behavior applies to the default separator and every custom separator. Applications that validate attacker-controlled values with the multiple option and no effective prior length limit can have the Node.js event loop blocked for seconds by one request, preventing other work. A .max() rule is not sufficient when abortEarly: false allows the email rule to run after the maximum-length check fails. This vulnerability is fixed in versions 17.13.9 and 18.3.1."}], "lastModified": "2026-10-30T19:37:07.073", "sourceIdentifier": "security-advisories@github.com"}