{"id":"GHSA-v3f6-m9j2-437p","title":"Duplicate Advisory: Microsoft Security Advisory CVE-2026-69304 – ASP.NET Core Denial of Service Vulnerability","summary":"Duplicate Advisory: Microsoft Security Advisory CVE-2026-69304 – ASP.NET Core Denial of Service Vulnerability","severity":"medium","cvss":5.9,"cwe":["CWE-409"],"vendor":"Microsoft","product":"Microsoft.AspNetCore.Server.IISIntegration","ecosystem":"nuget","affected":["Microsoft.AspNetCore.Server.IISIntegration >= 11.0.0-preview.1, < 11.0.0-rc.1","Microsoft.AspNetCore.Server.IISIntegration >= 8.0.0, <= 8.0.30","Microsoft.AspNetCore.Server.IISIntegration >= 9.0.0, <= 9.0.19","Microsoft.AspNetCore.Server.IISIntegration >= 10.0.0, <= 10.0.11"],"patched":["Microsoft.AspNetCore.Server.IISIntegration 11.0.0-rc.1","Microsoft.AspNetCore.Server.IISIntegration 8.0.31","Microsoft.AspNetCore.Server.IISIntegration 9.0.20","Microsoft.AspNetCore.Server.IISIntegration 10.0.12"],"published":"2026-09-08","updated":"2026-09-08","sourceUpdated":"2026-09-08T21:14:34Z","source":"GHSA","sourceUrl":"https://github.com/advisories/GHSA-v3f6-m9j2-437p","references":[{"url":"https://nvd.nist.gov/vuln/detail/CVE-2026-69304"},{"url":"https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-69304"},{"url":"https://github.com/advisories/GHSA-v3f6-m9j2-437p"}],"tags":["ghsa","nuget"],"ingestedAt":"2026-09-08T22:12:30.968Z","slug":"GHSA-v3f6-m9j2-437p","body":"## Overview\n\n### Duplicate Advisory\nThis advisory has been withdrawn because it is a duplicate of GHSA-8cp2-47hg-mfgh. This link is maintained to preserve external references.\n\n### Original Description\nImproper handling of highly compressed data (data amplification) in ASP.NET Core allows an unauthorized attacker to deny service over a network.\n\n## Affected packages\n\n- `Microsoft.AspNetCore.Server.IISIntegration >= 11.0.0-preview.1, < 11.0.0-rc.1`\n- `Microsoft.AspNetCore.Server.IISIntegration >= 8.0.0, <= 8.0.30`\n- `Microsoft.AspNetCore.Server.IISIntegration >= 9.0.0, <= 9.0.19`\n- `Microsoft.AspNetCore.Server.IISIntegration >= 10.0.0, <= 10.0.11`\n\n## Remediation\n\nUpgrade to a patched release:\n\n- `Microsoft.AspNetCore.Server.IISIntegration 11.0.0-rc.1`\n- `Microsoft.AspNetCore.Server.IISIntegration 8.0.31`\n- `Microsoft.AspNetCore.Server.IISIntegration 9.0.20`\n- `Microsoft.AspNetCore.Server.IISIntegration 10.0.12`","depth":"sunlit","depthScore":32,"depthScoreParts":{"impact":32.5,"likelihood":0,"exploitation":0,"ransomware":0},"changes":[]}