CVE-2026-128121

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{}

{"affected": [{"affectedData": [{"product": "kit", "vendor": "sveltejs", "versions": [{"status": "affected", "version": "< 2.70.4"}, {"status": "affected", "version": ">= 3.0.0-next.0, < 3.1.1"}]}, {"product": "adapter-vercel", "vendor": "@sveltejs", "versions": [{"status": "affected", "version": "< 6.3.5"}, {"status": "affected", "version": ">= 7.0.0-next.0, < 7.0.2"}]}, {"product": "adapter-static", "vendor": "@sveltejs", "versions": [{"status": "affected", "version": "< 3.0.11"}, {"status": "affected", "version": ">= 4.0.0-next.0, < 4.0.1"}]}], "source": "security-advisories@github.com"}], "cveTags": [], "descriptions": [{"lang": "en", "value": "SvelteKit is a framework for rapidly developing robust, performant web applications using Svelte. Prior to @sveltejs/adapter-vercel 6.3.5 and 7.0.2 and @sveltejs/adapter-static 3.0.11 and 4.0.1, an attacker-influenced link crawled during prerendering could be emitted into the generated Vercel routing configuration without escaping regular-expression metacharacters. The configuration could consequently interpret the path as regular-expression syntax, match unintended application paths, and expose content or behavior outside the intended path. This issue is fixed in @sveltejs/adapter-vercel 6.3.5 and 7.0.2 and @sveltejs/adapter-static 3.0.11 and 4.0.1."}], "id": "CVE-2026-128121", "lastModified": "2026-11-13T20:18:56.970", "metrics": {"cvssMetricV31": [{"cvssData": {"attackComplexity": "HIGH", "attackVector": "NETWORK", "availabilityImpact": "NONE", "baseScore": 5.9, "baseSeverity": "MEDIUM", "confidentialityImpact": "HIGH", "integrityImpact": "NONE", "privilegesRequired": "NONE", "scope": "UNCHANGED", "userInteraction": "NONE", "vectorString": "CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:N/A:N", "version": "3.1"}, "exploitabilityScore": 2.2, "impactScore": 3.6, "source": "security-advisories@github.com", "type": "Secondary"}]}, "published": "2026-11-13T20:18:56.970", "references": [{"source": "security-advisories@github.com", "url": "https://github.com/sveltejs/kit/commit/0a2e58cbccdd46cac20aa5af4e2edf17e0da11dd"}, {"source": "security-advisories@github.com", "url": "https://github.com/sveltejs/kit/commit/2ed61a6aa3ac230b89e3528654c587847d1525a0"}, {"source": "security-advisories@github.com", "url": "https://github.com/sveltejs/kit/pull/17620"}, {"source": "security-advisories@github.com", "url": "https://github.com/sveltejs/kit/releases/tag/@sveltejs/adapter-static@3.0.11"}, {"source": "security-advisories@github.com", "url": "https://github.com/sveltejs/kit/releases/tag/@sveltejs/adapter-static@4.0.1"}, {"source": "security-advisories@github.com", "url": "https://github.com/sveltejs/kit/releases/tag/@sveltejs/adapter-vercel@6.3.5"}, {"source": "security-advisories@github.com", "url": "https://github.com/sveltejs/kit/releases/tag/@sveltejs/adapter-vercel@7.0.2"}, {"source": "security-advisories@github.com", "url": "https://github.com/sveltejs/kit/security/advisories/GHSA-jf9x-2fg2-hx4w"}], "sourceIdentifier": "security-advisories@github.com", "vulnStatus": "Received", "weaknesses": [{"description": [{"lang": "en", "value": "CWE-116"}, {"lang": "en", "value": "CWE-625"}], "source": "security-advisories@github.com", "type": "Primary"}]}

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