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CVE-2026-12523 Resource exhaustion in quiche HTTP/3 and QPACK layers

🗓️ 14 Jul 2026 15:51:28Reported by cloudflareType 
cvelist
 cvelist
🔗 www.cve.org👁 18 Views

CVE-2026-12523 causes memory exhaustion in quiche HTTP/3 and QPACK via crafted frames; upgrade to quiche 0.29.3.

Related
Affected
Refs
ReporterTitlePublishedViews
Family
CVE
CVE-2026-12523
14 Jul 202615:51
cve
EUVD
EUVD-2026-43748
14 Jul 202615:51
euvd
NVD
CVE-2026-12523
14 Jul 202616:16
nvd
Positive Technologies
PT-2026-58086
14 Jul 202600:00
ptsecurity
Vulnrichment
CVE-2026-12523 Resource exhaustion in quiche HTTP/3 and QPACK layers
14 Jul 202615:51
vulnrichment
[
  {
    "vendor": "Cloudflare",
    "product": "quiche",
    "versions": [
      {
        "status": "affected",
        "version": "0.1.0",
        "lessThan": "0.29.3",
        "versionType": "semver"
      }
    ],
    "defaultStatus": "unaffected"
  }
]

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