{"id":"CVE-2026-82260","state":"PUBLISHED","title":"SvelteKit before 2.52.2 Memory Exhaustion via Remote Form Deserialization","description":"SvelteKit (@sveltejs/kit) versions >=2.49.0 and <=2.52.1 with experimental remote functions (experimental.remoteFunctions) and form enabled contain a memory exhaustion vulnerability in remote form deserialization. Malformed form data can cause excessive memory allocation, crashing the server process and resulting in denial of service. Fixed in 2.52.2.","publishedAt":"2026-08-28T10:49:43.651Z","updatedAt":"2026-10-08T15:25:31.482Z","severity":{"score":8.7,"label":"High","version":"4.0","vector":"CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N","source":"VulnCheck"},"assigner":"VulnCheck","products":["sveltejs kit"],"affected":[{"vendor":"sveltejs","product":"kit","packageURL":"pkg:npm/%40sveltejs/kit","defaultStatus":"unaffected","versions":[{"version":"2.49.0","status":"affected","lessThan":"2.52.1","versionType":"semver"},{"version":"2.52.1","status":"unaffected","versionType":"semver"}]}],"references":["https://github.com/sveltejs/kit/security/advisories/GHSA-vrhm-gvg7-fpcf","https://www.vulncheck.com/advisories/sveltekit-before-2.52.2-memory-exhaustion-via-remote-form-deserialization"],"weaknesses":["CWE-400"],"ingestedAt":"2026-10-29T20:13:15.269Z","source":{"repository":"CVEProject/cvelistV5","path":"cves/2026/82xxx/CVE-2026-82260.json","commit":"556c9d3a8cd17e218bb8e452ba7cd619a384ff47"},"raw":{"dataType":"CVE_RECORD","dataVersion":"5.2","cveMetadata":{"cveId":"CVE-2026-82260","state":"PUBLISHED","datePublished":"2026-08-28T10:49:43.651Z","dateUpdated":"2026-10-08T15:25:31.482Z","assignerShortName":"VulnCheck","assignerOrgId":"83251b91-4cc7-4094-a5c7-464a1b83ea10","dateReserved":"2026-08-28T10:39:30.356Z"},"containers":{"cna":{"title":"SvelteKit before 2.52.2 Memory Exhaustion via Remote Form Deserialization","descriptions":[{"lang":"en","value":"SvelteKit (@sveltejs/kit) versions >=2.49.0 and <=2.52.1 with experimental remote functions (experimental.remoteFunctions) and form enabled contain a memory exhaustion vulnerability in remote form deserialization. Malformed form data can cause excessive memory allocation, crashing the server process and resulting in denial of service. Fixed in 2.52.2."}],"affected":[{"vendor":"sveltejs","product":"kit","packageURL":"pkg:npm/%40sveltejs/kit","defaultStatus":"unaffected","versions":[{"version":"2.49.0","status":"affected","lessThan":"2.52.1","versionType":"semver"},{"version":"2.52.1","status":"unaffected","versionType":"semver"}]}],"references":[{"url":"https://github.com/sveltejs/kit/security/advisories/GHSA-vrhm-gvg7-fpcf","tags":["vendor-advisory"],"name":"GitHub Security Advisory (GHSA-vrhm-gvg7-fpcf)"},{"url":"https://www.vulncheck.com/advisories/sveltekit-before-2.52.2-memory-exhaustion-via-remote-form-deserialization","name":"VulnCheck Advisory: SvelteKit before 2.52.2 Memory Exhaustion via Remote Form Deserialization","tags":["third-party-advisory"]}],"metrics":[{"cvssV4_0":{"Automatable":"NOT_DEFINED","Recovery":"NOT_DEFINED","Safety":"NOT_DEFINED","attackComplexity":"LOW","attackRequirements":"NONE","attackVector":"NETWORK","baseScore":8.7,"baseSeverity":"HIGH","exploitMaturity":"NOT_DEFINED","privilegesRequired":"NONE","providerUrgency":"NOT_DEFINED","subAvailabilityImpact":"NONE","subConfidentialityImpact":"NONE","subIntegrityImpact":"NONE","userInteraction":"NONE","valueDensity":"NOT_DEFINED","vectorString":"CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N","version":"4.0","vulnAvailabilityImpact":"HIGH","vulnConfidentialityImpact":"NONE","vulnIntegrityImpact":"NONE","vulnerabilityResponseEffort":"NOT_DEFINED"},"format":"CVSS"},{"cvssV3_1":{"attackComplexity":"LOW","attackVector":"NETWORK","availabilityImpact":"HIGH","baseScore":7.5,"baseSeverity":"HIGH","confidentialityImpact":"NONE","integrityImpact":"NONE","privilegesRequired":"NONE","scope":"UNCHANGED","userInteraction":"NONE","vectorString":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H","version":"3.1"},"format":"CVSS"}],"problemTypes":[{"descriptions":[{"cweId":"CWE-400","lang":"en","description":"Uncontrolled Resource Consumption","type":"CWE"}]}],"providerMetadata":{"shortName":"VulnCheck","orgId":"83251b91-4cc7-4094-a5c7-464a1b83ea10","dateUpdated":"2026-10-08T15:25:31.482Z"},"datePublic":"2026-02-18T00:00:00.000Z","cpeApplicability":[{"nodes":[{"operator":"OR","negate":false,"cpeMatch":[{"vulnerable":true,"criteria":"cpe:2.3:a:svelte:kit:*:*:*:*:*:*:*:*","versionStartIncluding":"2.49.0","versionEndExcluding":"2.52.1"}]}]}],"credits":[{"lang":"en","value":"elliott-with-the-longest-name-on-github","type":"finder"}],"x_generator":{"engine":"vulncheck-endgame"}},"adp":[{"title":"CISA ADP Vulnrichment","metrics":[{"other":{"type":"ssvc","content":{"timestamp":"2026-08-28T14:42:03.280810Z","id":"CVE-2026-82260","options":[{"Exploitation":"none"},{"Automatable":"yes"},{"Technical Impact":"partial"}],"role":"CISA Coordinator","version":"2.0.3"}}}],"providerMetadata":{"shortName":"CISA-ADP","orgId":"134c704f-9b21-4f2e-91b3-4a467353bcc0","dateUpdated":"2026-08-28T15:52:30.481Z"}}]}}}