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CVE-2026-42530 NGINX Open-Source ngx_http_v3_module vulnerability

🗓️ 17 Jun 2026 14:04:32Reported by f5Type 
cvelist
 cvelist
🔗 www.cve.org👁 31 Views

CVE-2026-42530 remote attacker can trigger use-after-free in NGINX via HTTP/3 QPACK stream; code execution if address space randomization is disabled.

Related
Affected
Refs
[
  {
    "defaultStatus": "unknown",
    "modules": [
      "ngx_http_v3_module"
    ],
    "product": "NGINX Open Source",
    "vendor": "F5",
    "versions": [
      {
        "lessThan": "1.31.2",
        "status": "affected",
        "version": "1.31.0",
        "versionType": "custom"
      }
    ]
  }
]

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17 Jun 2026 14:04Current
CVSS 3.18.1
CVSS 49.2
EPSS0.03225
31