CVE-2026-22775

{"id": "CVE-2026-22775", "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}]}, "published": "2026-01-15T19:16:05.963", "references": [{"url": "https://github.com/sveltejs/devalue/commit/11755849fa0634ae294a15ec0aef2f43efcad7c4", "tags": ["Patch"], "source": "security-advisories@github.com"}, {"url": "https://github.com/sveltejs/devalue/releases/tag/v5.6.2", "tags": ["Release Notes"], "source": "security-advisories@github.com"}, {"url": "https://github.com/sveltejs/devalue/security/advisories/GHSA-g2pg-6438-jwpf", "tags": ["Vendor Advisory"], "source": "security-advisories@github.com"}], "vulnStatus": "Analyzed", "weaknesses": [{"type": "Primary", "source": "security-advisories@github.com", "description": [{"lang": "en", "value": "CWE-405"}]}], "descriptions": [{"lang": "en", "value": "Svelte devalue is a JavaScript library that serializes values into strings when JSON.stringify isn't sufficient for the job. From 5.1.0 to 5.6.1, certain inputs can cause devalue.parse to consume excessive CPU time and/or memory, potentially leading to denial of service in systems that parse input from untrusted sources. This affects applications using devalue.parse on externally-supplied data. The root cause is the ArrayBuffer hydration expecting base64 encoded strings as input, but not checking the assumption before decoding the input. This vulnerability is fixed in 5.6.2."}], "lastModified": "2026-01-20T15:29:35.663", "configurations": [{"nodes": [{"negate": false, "cpeMatch": [{"criteria": "cpe:2.3:a:svelte:devalue:*:*:*:*:*:node.js:*:*", "vulnerable": true, "matchCriteriaId": "E70AD508-7046-4740-A03C-8605AC4A5F12", "versionEndExcluding": "5.6.2", "versionStartIncluding": "5.1.0"}], "operator": "OR"}]}], "sourceIdentifier": "security-advisories@github.com"}