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CVE-2026-29057

🗓️ 18 Mar 2026 00:30:27Reported by GitHub_MType 
cve
 cve
🔗 web.nvd.nist.gov👁 127 Views🌐 WEB

CVE-2026-29057: Next.js rewrites may cause request smuggling with chunked DELETE/OPTIONS requests.

Related
Detection
Affected
Refs
Paths
NVD
Vulners
Node
OR
vercelnext.jsRange9.5.0–15.5.13node.js
vercelnext.jsRange16.0.0–16.1.7node.js
[
  {
    "vendor": "vercel",
    "product": "next.js",
    "versions": [
      {
        "version": ">= 16.0.0-beta.0, < 16.1.7",
        "status": "affected"
      },
      {
        "version": ">= 9.5.0, < 15.5.13",
        "status": "affected"
      }
    ]
  }
]
ParameterPositionPathDescriptionCWE
Transfer-Encoding: chunkedpath/api/workspace/tasks/1042Request smuggling via Transfer-Encoding: chunked on a rewritten DELETE request, allowing an attacker to smuggle a second request (e.g., GET /secret) to internal backend routes.CWE-444
Transfer-Encoding: chunkednested/secretInternal route reachable via request smuggling from a carrier request (e.g., DELETE /api/workspace/tasks/1042) using Transfer-Encoding: chunked.CWE-444

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17 Jun 2026 10:29Current
6.5Medium risk
Vulners AI Score6.5
CVSS 3.16.5
CVSS 46.3
EPSS0.00453
SSVC
127