# CVE-2026-50506: OData for ASP.NET and ASP.NET Core Denial of Service Vulnerability

- Exploited (CISA KEV): no
- Published: 2026-07-14
- CVSS: 7.5 HIGH (v3.1)
- EPSS: 1.2% (68th percentile)
- CWE: CWE-770

Allocation of resources without limits or throttling in ASP.NET Core allows an unauthorized attacker to deny service over a network.

## Edge WAF coverage (claimed by vendors, not measured)

| Vendor | Status | First rule | Days after publication |
|---|---|---|---|
| Cloudflare | No public claim | — | — |
| AWS | No public claim | — | — |
| Microsoft Azure | No public claim | — | — |
| Google Cloud | No public claim | — | — |
| Fastly | Before feed history | — | — |
| F5 | Rule published | 2026-09-16 | 64 |
| Akamai | No public source | — | — |
| OWASP CRS | No public claim | — | — |

### F5

- 2026-09-16 · new · rule 200012100
  > Added: signature 200012100 "ASP.NET OData Filter Denial of Service" (Denial of Service, risk High), systems: ASP.NET. References: CVE-2026-45646, CVE-2026-50506.
  Source: https://docs.cloud.f5.com/docs-v2/platform/changelogs/security-details-changelog
- 2026-09-16 · new · rule 200012101
  > Added: signature 200012101 "ASP.NET OData Preference Header Denial of Service" (Denial of Service, risk High), systems: ASP.NET. References: CVE-2026-45646, CVE-2026-50506.
  Source: https://docs.cloud.f5.com/docs-v2/platform/changelogs/security-details-changelog

"No public claim" means no vendor statement names this CVE; "Before feed history" means the CVE is older than the vendor feed. In both cases generic rules may still block it.

HTML: https://cve.vigilbase.com/cve/CVE-2026-50506 · JSON: https://cve.vigilbase.com/api/v1/cves/CVE-2026-50506