CVE-2026-44581
Next.js vulnerable to cross-site scripting in App Router applications using CSP nonces
描述
### Impact App Router applications that rely on CSP nonces can be vulnerable to stored cross-site scripting when deployed behind shared caches. In affected versions, malformed nonce values derived from request headers could be reflected into rendered HTML in an unsafe way, allowing an attacker to poison cached responses and cause script execution for later visitors. ### Fix We now reject or ignore malformed nonce values before they are embedded into HTML and apply stricter nonce sanitization so request-derived nonce data cannot break out of the intended attribute context. ### Workarounds If you cannot upgrade immediately, strip inbound `Content-Security-Policy` request headers from untrusted traffic.
如何修補 CVE-2026-44581
要修補 CVE-2026-44581,請將受影響套件升級到下列已修補版本。
- —升級至 15.5.16 或更新版本
CVE-2026-44581 正在被利用嗎?
低 — EPSS 為 0.2%,目前沒有觀察到大規模利用活動。
受影響套件(1)
- >= 13.4.0, < 15.5.16
CVSS 分數
| 來源 | 版本 | 嚴重程度 | 向量 |
|---|---|---|---|
| osv | CVSS 3.1 | MEDIUM4.7 | CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:C/C:L/I:L/A:N |