{"id":"EUVD-2026-30060","enisaUuid":"90945a1f-36eb-3c13-8a09-77cccd40587b","description":"Next.js is a React framework for building full-stack web applications. From 14.2.0 to before 15.5.16 and 16.2.5, applications using React Server Components can be vulnerable to cache poisoning when shared caches do not correctly partition response variants. Under affected conditions, an attacker can cause an RSC response to be served from the original URL and poison shared cache entries so later visitors receive component payloads instead of the expected HTML. This vulnerability is fixed in 15.5.16 and 16.2.5.","datePublished":"May 13, 2026, 4:57:10 PM","dateUpdated":"May 18, 2026, 1:45:59 PM","baseScore":5.4,"baseScoreVersion":"3.1","baseScoreVector":"CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:C/C:N/I:L/A:L","references":"https://github.com/vercel/next.js/security/advisories/GHSA-wfc6-r584-vfw7\n","aliases":"CVE-2026-44576\nGHSA-wfc6-r584-vfw7\n","assigner":"GitHub_M","epss":0.3,"enisaIdProduct":[{"id":"233d2c23-633a-38da-9199-03c1b47d5ba2","product":{"name":"next.js","vendor":{"name":"vercel"}},"product_version":"16.0.0, \u003c 16.2.5"},{"id":"4a565582-89e4-3d06-9374-a05a24797aef","product":{"name":"next.js","vendor":{"name":"vercel"}},"product_version":"14.2.0, \u003c 15.5.16"}],"enisaIdVendor":[{"id":"1cdfb482-ec94-3cae-a1f9-7675515a1b81","vendor":{"name":"vercel"}}],"enisaIdVulnerability":[{"id":"78bf0469-b4a0-3b7c-8771-caadd4a087de","vulnerability":{"id":"GHSA-wfc6-r584-vfw7","description":"Next.js vulnerable to cache poisoning in React Server Component responses","datePublished":"May 11, 2026, 3:54:46 PM","dateUpdated":"May 14, 2026, 8:38:11 PM","baseScore":0.0,"references":"https://github.com/vercel/next.js/security/advisories/GHSA-wfc6-r584-vfw7\nhttps://nvd.nist.gov/vuln/detail/CVE-2026-44576\nhttps://github.com/vercel/next.js\nhttps://github.com/vercel/next.js/releases/tag/v15.5.16\nhttps://github.com/vercel/next.js/releases/tag/v16.2.5\n","enisa_id":"EUVD-2026-30060\n","aliases":"CVE-2026-44576\nGHSA-wfc6-r584-vfw7\n","epss":0.0,"dataProcessed":"Nov 1, 2026, 2:00:21 AM","vulnerabilityProduct":[],"vulnerabilityVendor":[]}},{"id":"9802a2e8-d1bd-3794-9cf6-b057a83e9122","vulnerability":{"id":"CVE-2026-44576","description":"Next.js is a React framework for building full-stack web applications. From 14.2.0 to before 15.5.16 and 16.2.5, applications using React Server Components can be vulnerable to cache poisoning when shared caches do not correctly partition response variants. Under affected conditions, an attacker can cause an RSC response to be served from the original URL and poison shared cache entries so later visitors receive component payloads instead of the expected HTML. This vulnerability is fixed in 15.5.16 and 16.2.5.","datePublished":"May 13, 2026, 4:57:10 PM","dateUpdated":"May 18, 2026, 1:45:59 PM","status":"PUBLISHED","baseScore":5.4,"baseScoreVersion":"3.1","baseScoreVector":"CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:C/C:N/I:L/A:L","references":"https://github.com/vercel/next.js/security/advisories/GHSA-wfc6-r584-vfw7\n","enisa_id":"EUVD-2026-30060\n","assigner":"GitHub_M","epss":0.3,"dataProcessed":"Nov 5, 2026, 7:18:12 AM","vulnerabilityProduct":[{"id":"035bddb1-12c0-3edb-8b75-39ac48d30f7c","product":{"name":"next.js","vendor":{"name":"vercel"}},"product_version":"14.2.0, \u003c 15.5.16"},{"id":"3aabb5ea-1b21-38cc-aca4-63804d8b2489","product":{"name":"next.js","vendor":{"name":"vercel"}},"product_version":"16.0.0, \u003c 16.2.5"}],"vulnerabilityVendor":[{"id":"86b254b5-ec35-3f26-ab8e-821a27124955","vendor":{"name":"vercel"}}]}}],"enisaIdAdvisory":[{"id":"dc95ff5f-90ca-3797-895e-c4b3933b12b4","advisory":{"id":"WID-SEC-W-2026-1401","description":"Vercel Next.js: Mehrere Schwachstellen","summary":"Ein Angreifer kann mehrere Schwachstellen in Vercel Next.js ausnutzen, um Sicherheitsvorkehrungen zu umgehen, Cross-Site-Scripting-Angriffe durchzuführen, Daten zu manipulieren, vertrauliche Informationen offenzulegen oder einen Denial-of-Service-Zustand zu verursachen.","datePublished":"May 6, 2026, 10:00:00 PM","dateUpdated":"May 13, 2026, 10:00:00 PM","baseScore":0.0,"references":"https://wid.cert-bund.de/.well-known/csaf/white/2026/wid-sec-w-2026-1401.json\nhttps://wid.cert-bund.de/portal/wid/securityadvisory?name\u003dWID-SEC-2026-1401\n","aliases":"CVE-2026-23870\nCVE-2026-44572\nCVE-2026-44573\nCVE-2026-44574\nCVE-2026-44575\nCVE-2026-44576\nCVE-2026-44577\nCVE-2026-44578\nCVE-2026-44579\nCVE-2026-44580\nCVE-2026-44581\nCVE-2026-44582\n","source":{"id":8,"name":"csaf_certbund"},"advisoryProduct":[{"id":"4e34fb10-e5d0-3e4b-8497-b7a28d0c5bdf","product":{"name":"next.js","vendor":{"name":"vercel"}}},{"id":"6eef55a1-eced-366b-8ed5-72c112ffd47b","product":{"name":"15.5.16","vendor":{"name":"vercel"}}},{"id":"83bd8c68-9fd8-3c45-b4fe-706987676131","product":{"name":"16.2.5","vendor":{"name":"vercel"}}}]}}]}