{"id":"CVE-2026-70196","title":"Inefficient algorithmic complexity in ASP.NET Core allows an unauthorized attacker to deny service over a network.","summary":"Inefficient algorithmic complexity in ASP.NET Core allows an unauthorized attacker to deny service over a network.","severity":"medium","cvss":5.9,"cvssVector":"CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:H","cwe":["CWE-407","CWE-770"],"published":"2026-10-13","updated":"2026-10-13","sourceUpdated":"2026-10-13T23:17:59.887","source":"NVD","sourceUrl":"https://nvd.nist.gov/vuln/detail/CVE-2026-70196","references":[{"url":"https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-70196","label":"secure@microsoft.com"},{"url":"https://github.com/dotnet/aspnetcore/security/advisories/GHSA-57xr-hfxx-jw5x"},{"url":"https://github.com/dotnet/announcements/issues/465"},{"url":"https://github.com/dotnet/aspnetcore/discussions/69799"},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2026-70196"},{"url":"https://github.com/advisories/GHSA-57xr-hfxx-jw5x"},{"url":"https://security.access.redhat.com/data/csaf/v2/vex/2026/cve-2026-70196.json"},{"url":"https://access.redhat.com/security/cve/CVE-2026-70196"},{"url":"https://bugzilla.redhat.com/show_bug.cgi?id=2548798"},{"url":"https://www.cve.org/CVERecord?id=CVE-2026-70196"},{"url":"https://access.redhat.com/errata/RHSA-2026:86195"},{"url":"https://access.redhat.com/errata/RHSA-2026:86168"},{"url":"https://access.redhat.com/errata/RHSA-2026:86172"},{"url":"https://access.redhat.com/errata/RHSA-2026:86192"},{"url":"https://access.redhat.com/errata/RHSA-2026:86594"},{"url":"https://access.redhat.com/errata/RHSA-2026:86170"},{"url":"https://access.redhat.com/errata/RHSA-2026:86193"},{"url":"https://access.redhat.com/errata/RHSA-2026:86169"},{"url":"https://access.redhat.com/errata/RHSA-2026:86171"},{"url":"https://access.redhat.com/errata/RHSA-2026:88474"},{"url":"https://access.redhat.com/errata/RHSA-2026:88424"},{"url":"https://access.redhat.com/errata/RHSA-2026:88425"},{"url":"https://access.redhat.com/errata/RHSA-2026:88422"}],"tags":["nvd","cve.org","ghsa","nuget","csaf","vex","red-hat"],"ingestedAt":"2026-10-13T19:43:29.024Z","vendor":"Microsoft","product":"ASP.NET Core 10.0","affected":["asp.net_core_10.0 >= 10.0 < 10.0.13","asp.net_core_8.0 >= 8.0 < 8.0.32","asp.net_core_9.0 >= 9.0 < 9.0.21","visual_studio_2022_version_17.14 >= 17.14.0 < 17.14.42","visual_studio_2026_version_18.10 >= 18.10.0 < 18.10.4"],"ssvc":{"exploitation":"none","automatable":"no","technicalImpact":"partial","timestamp":"2026-10-13T22:07:27.786869Z"},"epss":0.0091,"epssPercentile":0.59783,"aliases":["GHSA-57xr-hfxx-jw5x"],"ecosystem":"nuget","patched":["Microsoft.AspNetCore.App.Runtime.linux-arm 8.0.32","Microsoft.AspNetCore.App.Runtime.linux-arm64 8.0.32","Microsoft.AspNetCore.App.Runtime.linux-musl-arm 8.0.32","Microsoft.AspNetCore.App.Runtime.linux-musl-arm64 8.0.32","Microsoft.AspNetCore.App.Runtime.linux-musl-x64 8.0.32","Microsoft.AspNetCore.App.Runtime.linux-x64 8.0.32","Microsoft.AspNetCore.App.Runtime.osx-arm64 8.0.32","Microsoft.AspNetCore.App.Runtime.osx-x64 8.0.32","Microsoft.AspNetCore.App.Runtime.win-arm 8.0.32","Microsoft.AspNetCore.App.Runtime.win-arm64 8.0.32","Microsoft.AspNetCore.App.Runtime.win-x64 8.0.32","Microsoft.AspNetCore.App.Runtime.win-x86 8.0.32","Microsoft.AspNetCore.App.Runtime.linux-arm 10.0.13","Microsoft.AspNetCore.App.Runtime.linux-arm64 10.0.13","Microsoft.AspNetCore.App.Runtime.linux-musl-arm 10.0.13","Microsoft.AspNetCore.App.Runtime.linux-musl-arm64 10.0.13","Microsoft.AspNetCore.App.Runtime.linux-musl-x64 10.0.13","Microsoft.AspNetCore.App.Runtime.linux-x64 10.0.13","Microsoft.AspNetCore.App.Runtime.osx-arm64 10.0.13","Microsoft.AspNetCore.App.Runtime.osx-x64 10.0.13","Microsoft.AspNetCore.App.Runtime.win-arm 10.0.13","Microsoft.AspNetCore.App.Runtime.win-arm64 10.0.13","Microsoft.AspNetCore.App.Runtime.win-x64 10.0.13","Microsoft.AspNetCore.App.Runtime.win-x86 10.0.13","Microsoft.AspNetCore.App.Runtime.linux-arm 9.0.21","Microsoft.AspNetCore.App.Runtime.linux-arm64 9.0.21","Microsoft.AspNetCore.App.Runtime.linux-musl-arm 9.0.21","Microsoft.AspNetCore.App.Runtime.linux-musl-arm64 9.0.21","Microsoft.AspNetCore.App.Runtime.linux-musl-x64 9.0.21","Microsoft.AspNetCore.App.Runtime.linux-x64 9.0.21","Microsoft.AspNetCore.App.Runtime.osx-arm64 9.0.21","Microsoft.AspNetCore.App.Runtime.osx-x64 9.0.21","Microsoft.AspNetCore.App.Runtime.win-arm 9.0.21","Microsoft.AspNetCore.App.Runtime.win-arm64 9.0.21","Microsoft.AspNetCore.App.Runtime.win-x64 9.0.21","Microsoft.AspNetCore.App.Runtime.win-x86 9.0.21"],"slug":"CVE-2026-70196","body":"## Overview\n\nInefficient algorithmic complexity in ASP.NET Core allows an unauthorized attacker to deny service over a network.\n\n## Remediation\n\nRefer to the linked advisories for vendor-supplied fixes and affected version ranges.\n\n## Package advisory (CVE-2026-70196)\n\nAffected packages:\n\n- `Microsoft.AspNetCore.App.Runtime.linux-arm >= 8.0.0, <= 8.0.31`\n- `Microsoft.AspNetCore.App.Runtime.linux-arm64 >= 8.0.0, <= 8.0.31`\n- `Microsoft.AspNetCore.App.Runtime.linux-musl-arm >= 8.0.0, <= 8.0.31`\n- `Microsoft.AspNetCore.App.Runtime.linux-musl-arm64 >= 8.0.0, <= 8.0.31`\n- `Microsoft.AspNetCore.App.Runtime.linux-musl-x64 >= 8.0.0, <= 8.0.31`\n- `Microsoft.AspNetCore.App.Runtime.linux-x64 >= 8.0.0, <= 8.0.31`\n- `Microsoft.AspNetCore.App.Runtime.osx-arm64 >= 8.0.0, <= 8.0.31`\n- `Microsoft.AspNetCore.App.Runtime.osx-x64 >= 8.0.0, <= 8.0.31`\n- `Microsoft.AspNetCore.App.Runtime.win-arm >= 8.0.0, <= 8.0.31`\n- `Microsoft.AspNetCore.App.Runtime.win-arm64 >= 8.0.0, <= 8.0.31`\n- `Microsoft.AspNetCore.App.Runtime.win-x64 >= 8.0.0, <= 8.0.31`\n- `Microsoft.AspNetCore.App.Runtime.win-x86 >= 8.0.0, <= 8.0.31`\n- `Microsoft.AspNetCore.App.Runtime.linux-arm >= 10.0.0, <= 10.0.12`\n- `Microsoft.AspNetCore.App.Runtime.linux-arm64 >= 10.0.0, <= 10.0.12`\n- `Microsoft.AspNetCore.App.Runtime.linux-musl-arm >= 10.0.0, <= 10.0.12`\n- `Microsoft.AspNetCore.App.Runtime.linux-musl-arm64 >= 10.0.0, <= 10.0.12`\n- `Microsoft.AspNetCore.App.Runtime.linux-musl-x64 >= 10.0.0, <= 10.0.12`\n- `Microsoft.AspNetCore.App.Runtime.linux-x64 >= 10.0.0, <= 10.0.12`\n- `Microsoft.AspNetCore.App.Runtime.osx-arm64 >= 10.0.0, <= 10.0.12`\n- `Microsoft.AspNetCore.App.Runtime.osx-x64 >= 10.0.0, <= 10.0.12`\n- `Microsoft.AspNetCore.App.Runtime.win-arm >= 10.0.0, <= 10.0.12`\n- `Microsoft.AspNetCore.App.Runtime.win-arm64 >= 10.0.0, <= 10.0.12`\n- `Microsoft.AspNetCore.App.Runtime.win-x64 >= 10.0.0, <= 10.0.12`\n- `Microsoft.AspNetCore.App.Runtime.win-x86 >= 10.0.0, <= 10.0.12`\n- `Microsoft.AspNetCore.App.Runtime.linux-arm >= 9.0.0, <= 9.0.20`\n- `Microsoft.AspNetCore.App.Runtime.linux-arm64 >= 9.0.0, <= 9.0.20`\n- `Microsoft.AspNetCore.App.Runtime.linux-musl-arm >= 9.0.0, <= 9.0.20`\n- `Microsoft.AspNetCore.App.Runtime.linux-musl-arm64 >= 9.0.0, <= 9.0.20`\n- `Microsoft.AspNetCore.App.Runtime.linux-musl-x64 >= 9.0.0, <= 9.0.20`\n- `Microsoft.AspNetCore.App.Runtime.linux-x64 >= 9.0.0, <= 9.0.20`\n- `Microsoft.AspNetCore.App.Runtime.osx-arm64 >= 9.0.0, <= 9.0.20`\n- `Microsoft.AspNetCore.App.Runtime.osx-x64 >= 9.0.0, <= 9.0.20`\n- `Microsoft.AspNetCore.App.Runtime.win-arm >= 9.0.0, <= 9.0.20`\n- `Microsoft.AspNetCore.App.Runtime.win-arm64 >= 9.0.0, <= 9.0.20`\n- `Microsoft.AspNetCore.App.Runtime.win-x64 >= 9.0.0, <= 9.0.20`\n- `Microsoft.AspNetCore.App.Runtime.win-x86 >= 9.0.0, <= 9.0.20`\n\nPatched in:\n\n- `Microsoft.AspNetCore.App.Runtime.linux-arm 8.0.32`\n- `Microsoft.AspNetCore.App.Runtime.linux-arm64 8.0.32`\n- `Microsoft.AspNetCore.App.Runtime.linux-musl-arm 8.0.32`\n- `Microsoft.AspNetCore.App.Runtime.linux-musl-arm64 8.0.32`\n- `Microsoft.AspNetCore.App.Runtime.linux-musl-x64 8.0.32`\n- `Microsoft.AspNetCore.App.Runtime.linux-x64 8.0.32`\n- `Microsoft.AspNetCore.App.Runtime.osx-arm64 8.0.32`\n- `Microsoft.AspNetCore.App.Runtime.osx-x64 8.0.32`\n- `Microsoft.AspNetCore.App.Runtime.win-arm 8.0.32`\n- `Microsoft.AspNetCore.App.Runtime.win-arm64 8.0.32`\n- `Microsoft.AspNetCore.App.Runtime.win-x64 8.0.32`\n- `Microsoft.AspNetCore.App.Runtime.win-x86 8.0.32`\n- `Microsoft.AspNetCore.App.Runtime.linux-arm 10.0.13`\n- `Microsoft.AspNetCore.App.Runtime.linux-arm64 10.0.13`\n- `Microsoft.AspNetCore.App.Runtime.linux-musl-arm 10.0.13`\n- `Microsoft.AspNetCore.App.Runtime.linux-musl-arm64 10.0.13`\n- `Microsoft.AspNetCore.App.Runtime.linux-musl-x64 10.0.13`\n- `Microsoft.AspNetCore.App.Runtime.linux-x64 10.0.13`\n- `Microsoft.AspNetCore.App.Runtime.osx-arm64 10.0.13`\n- `Microsoft.AspNetCore.App.Runtime.osx-x64 10.0.13`\n- `Microsoft.AspNetCore.App.Runtime.win-arm 10.0.13`\n- `Microsoft.AspNetCore.App.Runtime.win-arm64 10.0.13`\n- `Microsoft.AspNetCore.App.Runtime.win-x64 10.0.13`\n- `Microsoft.AspNetCore.App.Runtime.win-x86 10.0.13`\n- `Microsoft.AspNetCore.App.Runtime.linux-arm 9.0.21`\n- `Microsoft.AspNetCore.App.Runtime.linux-arm64 9.0.21`\n- `Microsoft.AspNetCore.App.Runtime.linux-musl-arm 9.0.21`\n- `Microsoft.AspNetCore.App.Runtime.linux-musl-arm64 9.0.21`\n- `Microsoft.AspNetCore.App.Runtime.linux-musl-x64 9.0.21`\n- `Microsoft.AspNetCore.App.Runtime.linux-x64 9.0.21`\n- `Microsoft.AspNetCore.App.Runtime.osx-arm64 9.0.21`\n- `Microsoft.AspNetCore.App.Runtime.osx-x64 9.0.21`\n- `Microsoft.AspNetCore.App.Runtime.win-arm 9.0.21`\n- `Microsoft.AspNetCore.App.Runtime.win-arm64 9.0.21`\n- `Microsoft.AspNetCore.App.Runtime.win-x64 9.0.21`\n- `Microsoft.AspNetCore.App.Runtime.win-x86 9.0.21`\n\nSource: https://github.com/advisories/GHSA-57xr-hfxx-jw5x\n\n## Vendor advisories\n\n- **RHSA-2026:86195** · Red Hat · fixed in: Red Hat Enterprise Linux AppStream (v. 10), Red Hat Enterprise Linux CodeReady Linux Builder (v. 10) · released 2026-10-20 · [advisory](https://access.redhat.com/errata/RHSA-2026:86195)\n- **RHSA-2026:86168** · Red Hat · fixed in: Red Hat Enterprise Linux AppStream (v. 10), Red Hat Enterprise Linux CodeReady Linux Builder (v. 10) · released 2026-10-20 · [advisory](https://access.redhat.com/errata/RHSA-2026:86168)\n- **RHSA-2026:86172** · Red Hat · fixed in: Red Hat Enterprise Linux AppStream (v. 10), Red Hat Enterprise Linux CodeReady Linux Builder (v. 10) · released 2026-10-20 · [advisory](https://access.redhat.com/errata/RHSA-2026:86172)\n- **RHSA-2026:86192** · Red Hat · fixed in: Red Hat Enterprise Linux AppStream (v. 8), Red Hat Enterprise Linux CRB (v. 8) · released 2026-10-20 · [advisory](https://access.redhat.com/errata/RHSA-2026:86192)\n- **RHSA-2026:86594** · Red Hat · fixed in: Red Hat Enterprise Linux AppStream (v. 8), Red Hat Enterprise Linux CRB (v. 8) · released 2026-10-21 · [advisory](https://access.redhat.com/errata/RHSA-2026:86594)\n- **RHSA-2026:86170** · Red Hat · fixed in: Red Hat Enterprise Linux AppStream (v. 8), Red Hat Enterprise Linux CRB (v. 8) · released 2026-10-20 · [advisory](https://access.redhat.com/errata/RHSA-2026:86170)\n- **RHSA-2026:86193** · Red Hat · fixed in: Red Hat Enterprise Linux AppStream (v. 9), Red Hat Enterprise Linux CodeReady Linux Builder (v. 9) · released 2026-10-20 · [advisory](https://access.redhat.com/errata/RHSA-2026:86193)\n- **RHSA-2026:86169** · Red Hat · fixed in: Red Hat Enterprise Linux AppStream (v. 9), Red Hat Enterprise Linux CodeReady Linux Builder (v. 9) · released 2026-10-20 · [advisory](https://access.redhat.com/errata/RHSA-2026:86169)\n- **RHSA-2026:86171** · Red Hat · fixed in: Red Hat Enterprise Linux AppStream (v. 9), Red Hat Enterprise Linux CodeReady Linux Builder (v. 9) · released 2026-10-20 · [advisory](https://access.redhat.com/errata/RHSA-2026:86171)\n- **RHSA-2026:88474** · Red Hat · fixed in: Red Hat Enterprise Linux AppStream EUS (v. 10.0), Red Hat Enterprise Linux CodeReady Linux Builder EUS (v. 10.0) · released 2026-10-22 · [advisory](https://access.redhat.com/errata/RHSA-2026:88474)\n- **RHSA-2026:88424** · Red Hat · fixed in: Red Hat Enterprise Linux AppStream EUS (v. 10.0), Red Hat Enterprise Linux CodeReady Linux Builder EUS (v. 10.0) · released 2026-10-22 · [advisory](https://access.redhat.com/errata/RHSA-2026:88424)\n- **RHSA-2026:88425** · Red Hat · fixed in: Red Hat Enterprise Linux AppStream E4S (v.9.4) · released 2026-10-22 · [advisory](https://access.redhat.com/errata/RHSA-2026:88425)\n- **RHSA-2026:88422** · Red Hat · fixed in: Red Hat Enterprise Linux AppStream EUS (v.9.6), Red Hat CodeReady Linux Builder EUS (v.9.6) · released 2026-10-22 · [advisory](https://access.redhat.com/errata/RHSA-2026:88422)","depth":"sunlit","depthScore":33,"depthScoreParts":{"impact":32.5,"likelihood":0.2,"exploitation":0,"ransomware":0},"changes":[]}