CVE Explorer
CVE-2026-44581
Next.js is a React framework for building full-stack web applications. From 13.4.0 to before 15.5.16 and 16.2.5, 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. This vulnerability is fixed i
Known exploited
Not asserted
Disputed
No
Stale source
No
Conflicts
0
Affected products and versions
1 source assertion{"product":"next.js","vendor":"vercel","versions":[{"status":"affected","version":">= 13.4.0, < 15.5.16"},{"status":"affected","version":">= 16.0.0, < 16.2.5"}]}
- cve_program_cvelist_v5affectedurn:baitaphish:normalized-source-record:v2:206288dedb07f38753dc2bced70b10619aa8c69791cfe801d24189a4c10f9823 · sha256:3f84b462f8c46d60… · /containers/cna/affected/0
Provider-owned CVSS observations
1 source assertion{"metric":{"attackComplexity":"HIGH","attackVector":"NETWORK","availabilityImpact":"NONE","baseScore":4.7,"baseSeverity":"MEDIUM","confidentialityImpact":"LOW","integrityImpact":"LOW","privilegesRequired":"NONE","scope":"CHANGED","userInteraction":"REQUIRED","vectorString":"CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:C/C:L/I:L/A:N","version":"3.1"},"metric_type":"cvssV3_1"}
- cve_program_cvelist_v5cvssurn:baitaphish:normalized-source-record:v2:206288dedb07f38753dc2bced70b10619aa8c69791cfe801d24189a4c10f9823 · sha256:3f84b462f8c46d60… · /containers/cna/metrics/0/cvssV3_1
CWE assertions
1 source assertion{"cweId":"CWE-79","description":"CWE-79: Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')","lang":"en","type":"CWE"}
- cve_program_cvelist_v5cweurn:baitaphish:normalized-source-record:v2:206288dedb07f38753dc2bced70b10619aa8c69791cfe801d24189a4c10f9823 · sha256:3f84b462f8c46d60… · /containers/cna/problemTypes/0/descriptions/0
Source references
1 source assertion{"name":"https://github.com/vercel/next.js/security/advisories/GHSA-ffhc-5mcf-pf4q","tags":["x_refsource_CONFIRM"],"url":"https://github.com/vercel/next.js/security/advisories/GHSA-ffhc-5mcf-pf4q"}
- cve_program_cvelist_v5referenceurn:baitaphish:normalized-source-record:v2:206288dedb07f38753dc2bced70b10619aa8c69791cfe801d24189a4c10f9823 · sha256:3f84b462f8c46d60… · /containers/cna/references/0
Attribution and limitations
- CVE Program CVEList V5: Reproduce the MITRE copyright designation and CVE license in copies. Source →
Provider severity values are preserved separately. Baitaphish does not convert them into a risk rating, infer affected products, or treat EPSS as observed exploitation.