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CVE-2026-105299 Pingora forwards client-nominated Connection headers to HTTP/1 upstreams, allowing ACL bypass in specific chained deployments

🗓️ 20 Oct 2026 01:07:12Reported by cloudflareType 
cvelist
 cvelist
🔗 www.cve.org👁 5 Views

Unauthenticated ACL bypass in Pingora via client-nominated Connection headers.

Related
Affected
Refs
ReporterTitlePublishedViews
Family
circl
Circl
CVE-2026-105299
20 Oct 202601:48
–circl
cve
CVE
CVE-2026-105299
20 Oct 202601:07
–cve
euvd
EUVD
EUVD-2026-104781
20 Oct 202603:32
–euvd
nvd
NVD
CVE-2026-105299
20 Oct 202602:17
–nvd
ptsecurity
Positive Technologies
PT-2026-118096
20 Oct 202600:00
–ptsecurity
[
  {
    "vendor": "Cloudflare",
    "product": "https://github.com/cloudflare/pingora",
    "repo": "https://github.com/cloudflare/pingora",
    "versions": [
      {
        "status": "affected",
        "version": "0.1.0",
        "lessThan": "0.9.0",
        "versionType": "semver"
      }
    ],
    "defaultStatus": "unaffected"
  }
]

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