{"answers":{"affected":"8 open source packages ship an affected version, including Microsoft.AspNetCore.SignalR.Common.","exploited":"There is no known exploitation of CVE-2026-70159 in the wild and no public exploit code.","fix":"Upgrade Microsoft.AspNetCore.SignalR.Common to a fixed version for your release line: 10.0.13, 11.0.0-rc.2, 8.0.32 or 9.0.21.","what":"CVE-2026-70159 is a high-severity denial of service vulnerability in Microsoft Visual Studio 2022 version 17.14, published on 13 Oct 2026. An attacker can exploit it over the internet without logging in, with no action from the victim."},"fix_prompt":"Check this codebase for CVE-2026-70159 and fix it if it is affected.\n\nWhat it is: CVE-2026-70159 is a high-severity denial of service vulnerability in Microsoft Visual Studio 2022 version 17.14, published on 13 Oct 2026. An attacker can exploit it over the internet without logging in, with no action from the victim.\nExploitation: There is no known exploitation of CVE-2026-70159 in the wild and no public exploit code.\n\nAffected packages and fixed versions:\n- Microsoft.AspNetCore.SignalR.Common (NuGet): affected from 10.0.0; fixed in 10.0.13\n- Microsoft.AspNetCore.SignalR.Common (NuGet): affected from 10.0.0; fixed in 10.0.13\n- Microsoft.AspNetCore.SignalR.Common (NuGet): affected from 11.0.0-preview.5; fixed in 11.0.0-rc.2\n- Microsoft.AspNetCore.SignalR.Common (NuGet): affected from 11.0.0-preview.5; fixed in 11.0.0-rc.2\n- Microsoft.AspNetCore.SignalR.Common (NuGet): affected from 8.0.0; fixed in 8.0.32\n- Microsoft.AspNetCore.SignalR.Common (NuGet): affected from 8.0.0; fixed in 8.0.32\n- Microsoft.AspNetCore.SignalR.Common (NuGet): affected from 9.0.0; fixed in 9.0.21\n- Microsoft.AspNetCore.SignalR.Common (NuGet): affected from 9.0.0; fixed in 9.0.21\n\nTask:\n1. Search the dependency manifests and lockfiles (for example package.json, package-lock.json, requirements.txt, poetry.lock, uv.lock, pom.xml, build.gradle, go.mod, Cargo.lock, Gemfile.lock) and any Dockerfiles for the affected packages, including transitive dependencies.\n2. If an affected version is in use, upgrade it to the fixed version for its release line with the project's package manager, so the lockfile is regenerated. Prefer the smallest upgrade that fixes it.\n3. If there is no fix, or the upgrade would break the build, do not guess: explain the risk and the safest workaround instead.\n4. Run the tests and summarise what changed and why.\n5. If nothing in the project is affected, say so and change nothing.\n\nReference: https://insights.sbomify.com/CVE-2026-70159/ (Markdown: https://insights.sbomify.com/CVE-2026-70159/index.md)","id":"CVE-2026-70159","markdown":"https://insights.sbomify.com/CVE-2026-70159/index.md","name":"CVE-2026-70159","record":{"aliases":["GHSA-334f-vvp4-7g6p","MINI-28hw-xv6x-f5mx","MINI-x9gf-h566-gm7w","UBUNTU-CVE-2026-70159"],"analysis":{"component_type":"library","fix_type":"patch","impacts":["denial_of_service"],"network_reachable":"yes","non_default_config":false,"product_category":"ASP.NET Core SignalR","requires_auth":"none","summary":"An unauthorized attacker can cause a denial of service in ASP.NET Core SignalR by exploiting uncontrolled resource allocation.","user_interaction":"not_required","vuln_class":"denial_of_service"},"analysis_generated_by":"qwen3.8-flash-next","assigner":"microsoft","cpe":[],"cvss":{"score":7.5,"severity":"high","source":"cna","vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H/E:U/RL:O/RC:C","version":"3.1"},"cwes":[{"id":"CWE-770","name":"Allocation of Resources Without Limits or Throttling"}],"description":"Allocation of resources without limits or throttling in ASP.NET Core allows an unauthorized attacker to deny service over a network.","ecosystems":["NuGet"],"exploits":{"exploitdb":0,"first_seen":null,"github_poc":0,"max_poc_stars":null,"metasploit":0,"nuclei":0,"refs":[],"tier":"none_known"},"has_fix":true,"headline":"ASP.NET Core Denial of Service Vulnerability","id":"CVE-2026-70159","indexable":true,"kev":null,"kind":"cve","links":{"ecosystem":"NuGet","product":null,"products":[],"type":"denial_of_service","year":"2026"},"n_packages":8,"n_references":1,"next":{"headline":"Windows Kernel Elevation of Privilege Vulnerability","id":"CVE-2026-70160"},"packages":[{"ecosystem":"NuGet","fixed":["10.0.13"],"introduced":["10.0.0"],"last_affected":[],"package":"Microsoft.AspNetCore.SignalR.Common","purl":null,"source":"GHSA-334f-vvp4-7g6p"},{"ecosystem":"NuGet","fixed":["10.0.13"],"introduced":["10.0.0"],"last_affected":[],"package":"Microsoft.AspNetCore.SignalR.Common","purl":"pkg:nuget/Microsoft.AspNetCore.SignalR.Common","source":"GHSA-334f-vvp4-7g6p"},{"ecosystem":"NuGet","fixed":["11.0.0-rc.2"],"introduced":["11.0.0-preview.5"],"last_affected":[],"package":"Microsoft.AspNetCore.SignalR.Common","purl":null,"source":"GHSA-334f-vvp4-7g6p"},{"ecosystem":"NuGet","fixed":["11.0.0-rc.2"],"introduced":["11.0.0-preview.5"],"last_affected":[],"package":"Microsoft.AspNetCore.SignalR.Common","purl":"pkg:nuget/Microsoft.AspNetCore.SignalR.Common","source":"GHSA-334f-vvp4-7g6p"},{"ecosystem":"NuGet","fixed":["8.0.32"],"introduced":["8.0.0"],"last_affected":[],"package":"Microsoft.AspNetCore.SignalR.Common","purl":null,"source":"GHSA-334f-vvp4-7g6p"},{"ecosystem":"NuGet","fixed":["8.0.32"],"introduced":["8.0.0"],"last_affected":[],"package":"Microsoft.AspNetCore.SignalR.Common","purl":"pkg:nuget/Microsoft.AspNetCore.SignalR.Common","source":"GHSA-334f-vvp4-7g6p"},{"ecosystem":"NuGet","fixed":["9.0.21"],"introduced":["9.0.0"],"last_affected":[],"package":"Microsoft.AspNetCore.SignalR.Common","purl":null,"source":"GHSA-334f-vvp4-7g6p"},{"ecosystem":"NuGet","fixed":["9.0.21"],"introduced":["9.0.0"],"last_affected":[],"package":"Microsoft.AspNetCore.SignalR.Common","purl":"pkg:nuget/Microsoft.AspNetCore.SignalR.Common","source":"GHSA-334f-vvp4-7g6p"}],"prev":{"headline":"Windows Routing and Remote Access Service (RRAS) Remote Code Execution Vulnerability","id":"CVE-2026-70158"},"products":["Microsoft Visual Studio 2022 version 17.14","Microsoft Visual Studio 2026 version 18.10","Microsoft.AspNetCore.SignalR.Common","Microsoft.AspNetCore.SignalR.Core"],"published":"2026-10-13","related":[],"sources":[{"class":"attribution","licence":"CVE Terms of Use (MITRE)","name":"CVE List","prefix":"CVE"},{"class":"attribution","licence":"CC BY 4.0","name":"GitHub Advisory Database","prefix":"GHSA"},{"class":"attribution","licence":"CWE Terms of Use","name":"CWE (MITRE)"},{"class":"attribution","licence":"FIRST CVSS licence","name":"CVSS (FIRST)"}],"ssvc":{"automatable":"yes","exploitation":"none","technical_impact":"partial"},"state":"PUBLISHED","updated":"2026-10-29","vendors":["Microsoft"]},"summary":"An unauthorized attacker can cause a denial of service in ASP.NET Core SignalR by exploiting uncontrolled resource allocation.","url":"https://insights.sbomify.com/CVE-2026-70159/"}