CVE Explorer
CVE-2026-64649
Next.js is a React framework for building full-stack web applications. In versions 14.1.1 through 15.5.20 and 16.0.0 through 16.2.10, when a Server Action forwards or redirects a request, an attacker can cause the server to send that outbound request to a malicious host (Server-Side Request Forgery). This requires the attacker's request to control Host-associated headers. In some configurations, it's also possible to obtain internal values that weaken middleware/proxy authorization. Applications
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":">= 14.1.1, < 15.5.21"},{"status":"affected","version":">= 16.0.0 < 16.2.11"}]}
- cve_program_cvelist_v5affectedurn:baitaphish:normalized-source-record:v2:65bad381dc109ad04ff96f22b009aa41e0c10ba34b7a1be5297314724a118390 · sha256:3ed1f2dd2b7a62d8… · /containers/cna/affected/0
Provider-owned CVSS observations
1 source assertion{"metric":{"attackComplexity":"LOW","attackRequirements":"PRESENT","attackVector":"NETWORK","baseScore":8.3,"baseSeverity":"HIGH","privilegesRequired":"NONE","subAvailabilityImpact":"NONE","subConfidentialityImpact":"NONE","subIntegrityImpact":"NONE","userInteraction":"NONE","vectorString":"CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:N/VC:H/VI:L/VA:N/SC:N/SI:N/SA:N","version":"4.0","vulnAvailabilityImpact":"NONE","vulnConfidentialityImpact":"HIGH","vulnIntegrityImpact":"LOW"},"metric_type":"cvssV4_0"}
- cve_program_cvelist_v5cvssurn:baitaphish:normalized-source-record:v2:65bad381dc109ad04ff96f22b009aa41e0c10ba34b7a1be5297314724a118390 · sha256:3ed1f2dd2b7a62d8… · /containers/cna/metrics/0/cvssV4_0
CWE assertions
1 source assertion{"cweId":"CWE-918","description":"CWE-918: Server-Side Request Forgery (SSRF)","lang":"en","type":"CWE"}
- cve_program_cvelist_v5cweurn:baitaphish:normalized-source-record:v2:65bad381dc109ad04ff96f22b009aa41e0c10ba34b7a1be5297314724a118390 · sha256:3ed1f2dd2b7a62d8… · /containers/cna/problemTypes/0/descriptions/0
Source references
5 source assertions{"name":"https://github.com/vercel/next.js/commit/b51206321854193208c0805ba42acc49287f942b","tags":["x_refsource_MISC"],"url":"https://github.com/vercel/next.js/commit/b51206321854193208c0805ba42acc49287f942b"}
- cve_program_cvelist_v5referenceurn:baitaphish:normalized-source-record:v2:65bad381dc109ad04ff96f22b009aa41e0c10ba34b7a1be5297314724a118390 · sha256:3ed1f2dd2b7a62d8… · /containers/cna/references/1
{"name":"https://github.com/vercel/next.js/commit/e3e5666ccead3a15162793d697af5e48b7cc0498","tags":["x_refsource_MISC"],"url":"https://github.com/vercel/next.js/commit/e3e5666ccead3a15162793d697af5e48b7cc0498"}
- cve_program_cvelist_v5referenceurn:baitaphish:normalized-source-record:v2:65bad381dc109ad04ff96f22b009aa41e0c10ba34b7a1be5297314724a118390 · sha256:3ed1f2dd2b7a62d8… · /containers/cna/references/2
{"name":"https://github.com/vercel/next.js/releases/tag/v15.5.21","tags":["x_refsource_MISC"],"url":"https://github.com/vercel/next.js/releases/tag/v15.5.21"}
- cve_program_cvelist_v5referenceurn:baitaphish:normalized-source-record:v2:65bad381dc109ad04ff96f22b009aa41e0c10ba34b7a1be5297314724a118390 · sha256:3ed1f2dd2b7a62d8… · /containers/cna/references/3
{"name":"https://github.com/vercel/next.js/releases/tag/v16.2.11","tags":["x_refsource_MISC"],"url":"https://github.com/vercel/next.js/releases/tag/v16.2.11"}
- cve_program_cvelist_v5referenceurn:baitaphish:normalized-source-record:v2:65bad381dc109ad04ff96f22b009aa41e0c10ba34b7a1be5297314724a118390 · sha256:3ed1f2dd2b7a62d8… · /containers/cna/references/4
{"name":"https://github.com/vercel/next.js/security/advisories/GHSA-89xv-2m56-2m9x","tags":["x_refsource_CONFIRM"],"url":"https://github.com/vercel/next.js/security/advisories/GHSA-89xv-2m56-2m9x"}
- cve_program_cvelist_v5referenceurn:baitaphish:normalized-source-record:v2:65bad381dc109ad04ff96f22b009aa41e0c10ba34b7a1be5297314724a118390 · sha256:3ed1f2dd2b7a62d8… · /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.