{"answers":{"affected":"40 open source packages ship an affected version, including Microsoft.NETCore.App.Runtime.linux-arm, Microsoft.NETCore.App.Runtime.linux-arm64 and Microsoft.NETCore.App.Runtime.linux-musl-arm.","exploited":"There is no known exploitation of CVE-2026-66822 in the wild and no public exploit code.","fix":"Upgrade Microsoft.NETCore.App.Runtime.linux-arm 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-2026-66822 is a medium-severity vulnerability in Microsoft .NET 10.0 runtime, 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-2026-66822 and fix it if it is affected.\n\nWhat it is: CVE-2026-66822 is a medium-severity vulnerability in Microsoft .NET 10.0 runtime, 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-2026-66822 in the wild and no public exploit code.\n\nAffected packages and fixed versions:\n- Microsoft.NETCore.App.Runtime.linux-arm (NuGet): affected from 10.0.0; fixed in 10.0.13\n- Microsoft.NETCore.App.Runtime.linux-arm (NuGet): affected from 10.0.0; fixed in 10.0.13\n- Microsoft.NETCore.App.Runtime.linux-arm (NuGet): affected from 11.0.0-preview.1; fixed in 11.0.0-rc.2\n- Microsoft.NETCore.App.Runtime.linux-arm (NuGet): affected from 11.0.0-preview.1; fixed in 11.0.0-rc.2\n- Microsoft.NETCore.App.Runtime.linux-arm (NuGet): affected from 8.0.0; fixed in 8.0.32\n- Microsoft.NETCore.App.Runtime.linux-arm (NuGet): affected from 8.0.0; fixed in 8.0.32\n- Microsoft.NETCore.App.Runtime.linux-arm (NuGet): affected from 9.0.0; fixed in 9.0.21\n- Microsoft.NETCore.App.Runtime.linux-arm (NuGet): affected from 9.0.0; fixed in 9.0.21\n- Microsoft.NETCore.App.Runtime.linux-arm64 (NuGet): affected from 10.0.0; fixed in 10.0.13\n- Microsoft.NETCore.App.Runtime.linux-arm64 (NuGet): affected from 10.0.0; fixed in 10.0.13\n- Microsoft.NETCore.App.Runtime.linux-arm64 (NuGet): affected from 11.0.0-preview.1; fixed in 11.0.0-rc.2\n- Microsoft.NETCore.App.Runtime.linux-arm64 (NuGet): affected from 11.0.0-preview.1; fixed in 11.0.0-rc.2\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-2026-66822/ (Markdown: https://insights.sbomify.com/CVE-2026-66822/index.md)","id":"CVE-2026-66822","markdown":"https://insights.sbomify.com/CVE-2026-66822/index.md","name":"CVE-2026-66822","record":{"aliases":["GHSA-wxxw-5cvc-53j7","UBUNTU-CVE-2026-66822"],"analysis":{"component_type":"library","fix_type":"patch","impacts":["data_read"],"network_reachable":"yes","non_default_config":false,"product_category":".NET runtime","requires_auth":"none","summary":"An attacker can disclose sensitive information over the network due to improper data handling in the .NET runtime.","user_interaction":"not_required","vuln_class":"information_disclosure"},"analysis_generated_by":"qwen3.8-flash-next","assigner":"microsoft","cpe":[],"cvss":{"score":5.9,"severity":"medium","source":"cna","vector":"CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:N/A:N/E:U/RL:O/RC:C","version":"3.1"},"cwes":[{"id":"CWE-201","name":"Insertion of Sensitive Information Into Sent Data"}],"description":"Insertion of sensitive information into sent data in .NET allows an unauthorized attacker to disclose information 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":".NET Information Disclosure Vulnerability","id":"CVE-2026-66822","indexable":true,"kev":null,"kind":"cve","links":{"ecosystem":"NuGet","product":null,"products":[],"type":"information_disclosure","year":"2026"},"n_packages":88,"n_references":1,"next":{"headline":"Stored Cross-Site Scripting via Unsafe Capture Tree JSON Embedding","id":"CVE-2026-66824"},"packages":[{"ecosystem":"NuGet","fixed":["10.0.13"],"introduced":["10.0.0"],"last_affected":[],"package":"Microsoft.NETCore.App.Runtime.linux-arm","purl":null,"source":"GHSA-wxxw-5cvc-53j7"},{"ecosystem":"NuGet","fixed":["10.0.13"],"introduced":["10.0.0"],"last_affected":[],"package":"Microsoft.NETCore.App.Runtime.linux-arm","purl":"pkg:nuget/Microsoft.NETCore.App.Runtime.linux-arm","source":"GHSA-wxxw-5cvc-53j7"},{"ecosystem":"NuGet","fixed":["11.0.0-rc.2"],"introduced":["11.0.0-preview.1"],"last_affected":[],"package":"Microsoft.NETCore.App.Runtime.linux-arm","purl":null,"source":"GHSA-wxxw-5cvc-53j7"},{"ecosystem":"NuGet","fixed":["11.0.0-rc.2"],"introduced":["11.0.0-preview.1"],"last_affected":[],"package":"Microsoft.NETCore.App.Runtime.linux-arm","purl":"pkg:nuget/Microsoft.NETCore.App.Runtime.linux-arm","source":"GHSA-wxxw-5cvc-53j7"},{"ecosystem":"NuGet","fixed":["8.0.32"],"introduced":["8.0.0"],"last_affected":[],"package":"Microsoft.NETCore.App.Runtime.linux-arm","purl":null,"source":"GHSA-wxxw-5cvc-53j7"},{"ecosystem":"NuGet","fixed":["8.0.32"],"introduced":["8.0.0"],"last_affected":[],"package":"Microsoft.NETCore.App.Runtime.linux-arm","purl":"pkg:nuget/Microsoft.NETCore.App.Runtime.linux-arm","source":"GHSA-wxxw-5cvc-53j7"},{"ecosystem":"NuGet","fixed":["9.0.21"],"introduced":["9.0.0"],"last_affected":[],"package":"Microsoft.NETCore.App.Runtime.linux-arm","purl":null,"source":"GHSA-wxxw-5cvc-53j7"},{"ecosystem":"NuGet","fixed":["9.0.21"],"introduced":["9.0.0"],"last_affected":[],"package":"Microsoft.NETCore.App.Runtime.linux-arm","purl":"pkg:nuget/Microsoft.NETCore.App.Runtime.linux-arm","source":"GHSA-wxxw-5cvc-53j7"},{"ecosystem":"NuGet","fixed":["10.0.13"],"introduced":["10.0.0"],"last_affected":[],"package":"Microsoft.NETCore.App.Runtime.linux-arm64","purl":null,"source":"GHSA-wxxw-5cvc-53j7"},{"ecosystem":"NuGet","fixed":["10.0.13"],"introduced":["10.0.0"],"last_affected":[],"package":"Microsoft.NETCore.App.Runtime.linux-arm64","purl":"pkg:nuget/Microsoft.NETCore.App.Runtime.linux-arm64","source":"GHSA-wxxw-5cvc-53j7"},{"ecosystem":"NuGet","fixed":["11.0.0-rc.2"],"introduced":["11.0.0-preview.1"],"last_affected":[],"package":"Microsoft.NETCore.App.Runtime.linux-arm64","purl":null,"source":"GHSA-wxxw-5cvc-53j7"},{"ecosystem":"NuGet","fixed":["11.0.0-rc.2"],"introduced":["11.0.0-preview.1"],"last_affected":[],"package":"Microsoft.NETCore.App.Runtime.linux-arm64","purl":"pkg:nuget/Microsoft.NETCore.App.Runtime.linux-arm64","source":"GHSA-wxxw-5cvc-53j7"},{"ecosystem":"NuGet","fixed":["8.0.32"],"introduced":["8.0.0"],"last_affected":[],"package":"Microsoft.NETCore.App.Runtime.linux-arm64","purl":null,"source":"GHSA-wxxw-5cvc-53j7"},{"ecosystem":"NuGet","fixed":["8.0.32"],"introduced":["8.0.0"],"last_affected":[],"package":"Microsoft.NETCore.App.Runtime.linux-arm64","purl":"pkg:nuget/Microsoft.NETCore.App.Runtime.linux-arm64","source":"GHSA-wxxw-5cvc-53j7"},{"ecosystem":"NuGet","fixed":["9.0.21"],"introduced":["9.0.0"],"last_affected":[],"package":"Microsoft.NETCore.App.Runtime.linux-arm64","purl":null,"source":"GHSA-wxxw-5cvc-53j7"},{"ecosystem":"NuGet","fixed":["9.0.21"],"introduced":["9.0.0"],"last_affected":[],"package":"Microsoft.NETCore.App.Runtime.linux-arm64","purl":"pkg:nuget/Microsoft.NETCore.App.Runtime.linux-arm64","source":"GHSA-wxxw-5cvc-53j7"},{"ecosystem":"NuGet","fixed":["10.0.13"],"introduced":["10.0.0"],"last_affected":[],"package":"Microsoft.NETCore.App.Runtime.linux-musl-arm","purl":null,"source":"GHSA-wxxw-5cvc-53j7"},{"ecosystem":"NuGet","fixed":["10.0.13"],"introduced":["10.0.0"],"last_affected":[],"package":"Microsoft.NETCore.App.Runtime.linux-musl-arm","purl":"pkg:nuget/Microsoft.NETCore.App.Runtime.linux-musl-arm","source":"GHSA-wxxw-5cvc-53j7"},{"ecosystem":"NuGet","fixed":["11.0.0-rc.2"],"introduced":["11.0.0-preview.1"],"last_affected":[],"package":"Microsoft.NETCore.App.Runtime.linux-musl-arm","purl":null,"source":"GHSA-wxxw-5cvc-53j7"},{"ecosystem":"NuGet","fixed":["11.0.0-rc.2"],"introduced":["11.0.0-preview.1"],"last_affected":[],"package":"Microsoft.NETCore.App.Runtime.linux-musl-arm","purl":"pkg:nuget/Microsoft.NETCore.App.Runtime.linux-musl-arm","source":"GHSA-wxxw-5cvc-53j7"},{"ecosystem":"NuGet","fixed":["8.0.32"],"introduced":["8.0.0"],"last_affected":[],"package":"Microsoft.NETCore.App.Runtime.linux-musl-arm","purl":null,"source":"GHSA-wxxw-5cvc-53j7"},{"ecosystem":"NuGet","fixed":["8.0.32"],"introduced":["8.0.0"],"last_affected":[],"package":"Microsoft.NETCore.App.Runtime.linux-musl-arm","purl":"pkg:nuget/Microsoft.NETCore.App.Runtime.linux-musl-arm","source":"GHSA-wxxw-5cvc-53j7"},{"ecosystem":"NuGet","fixed":["9.0.21"],"introduced":["9.0.0"],"last_affected":[],"package":"Microsoft.NETCore.App.Runtime.linux-musl-arm","purl":null,"source":"GHSA-wxxw-5cvc-53j7"},{"ecosystem":"NuGet","fixed":["9.0.21"],"introduced":["9.0.0"],"last_affected":[],"package":"Microsoft.NETCore.App.Runtime.linux-musl-arm","purl":"pkg:nuget/Microsoft.NETCore.App.Runtime.linux-musl-arm","source":"GHSA-wxxw-5cvc-53j7"},{"ecosystem":"NuGet","fixed":["10.0.13"],"introduced":["10.0.0"],"last_affected":[],"package":"Microsoft.NETCore.App.Runtime.linux-musl-arm64","purl":null,"source":"GHSA-wxxw-5cvc-53j7"},{"ecosystem":"NuGet","fixed":["10.0.13"],"introduced":["10.0.0"],"last_affected":[],"package":"Microsoft.NETCore.App.Runtime.linux-musl-arm64","purl":"pkg:nuget/Microsoft.NETCore.App.Runtime.linux-musl-arm64","source":"GHSA-wxxw-5cvc-53j7"},{"ecosystem":"NuGet","fixed":["11.0.0-rc.2"],"introduced":["11.0.0-preview.1"],"last_affected":[],"package":"Microsoft.NETCore.App.Runtime.linux-musl-arm64","purl":null,"source":"GHSA-wxxw-5cvc-53j7"},{"ecosystem":"NuGet","fixed":["11.0.0-rc.2"],"introduced":["11.0.0-preview.1"],"last_affected":[],"package":"Microsoft.NETCore.App.Runtime.linux-musl-arm64","purl":"pkg:nuget/Microsoft.NETCore.App.Runtime.linux-musl-arm64","source":"GHSA-wxxw-5cvc-53j7"},{"ecosystem":"NuGet","fixed":["8.0.32"],"introduced":["8.0.0"],"last_affected":[],"package":"Microsoft.NETCore.App.Runtime.linux-musl-arm64","purl":null,"source":"GHSA-wxxw-5cvc-53j7"},{"ecosystem":"NuGet","fixed":["8.0.32"],"introduced":["8.0.0"],"last_affected":[],"package":"Microsoft.NETCore.App.Runtime.linux-musl-arm64","purl":"pkg:nuget/Microsoft.NETCore.App.Runtime.linux-musl-arm64","source":"GHSA-wxxw-5cvc-53j7"},{"ecosystem":"NuGet","fixed":["9.0.21"],"introduced":["9.0.0"],"last_affected":[],"package":"Microsoft.NETCore.App.Runtime.linux-musl-arm64","purl":null,"source":"GHSA-wxxw-5cvc-53j7"},{"ecosystem":"NuGet","fixed":["9.0.21"],"introduced":["9.0.0"],"last_affected":[],"package":"Microsoft.NETCore.App.Runtime.linux-musl-arm64","purl":"pkg:nuget/Microsoft.NETCore.App.Runtime.linux-musl-arm64","source":"GHSA-wxxw-5cvc-53j7"},{"ecosystem":"NuGet","fixed":["10.0.13"],"introduced":["10.0.0"],"last_affected":[],"package":"Microsoft.NETCore.App.Runtime.linux-musl-x64","purl":null,"source":"GHSA-wxxw-5cvc-53j7"},{"ecosystem":"NuGet","fixed":["10.0.13"],"introduced":["10.0.0"],"last_affected":[],"package":"Microsoft.NETCore.App.Runtime.linux-musl-x64","purl":"pkg:nuget/Microsoft.NETCore.App.Runtime.linux-musl-x64","source":"GHSA-wxxw-5cvc-53j7"},{"ecosystem":"NuGet","fixed":["11.0.0-rc.2"],"introduced":["11.0.0-preview.1"],"last_affected":[],"package":"Microsoft.NETCore.App.Runtime.linux-musl-x64","purl":null,"source":"GHSA-wxxw-5cvc-53j7"},{"ecosystem":"NuGet","fixed":["11.0.0-rc.2"],"introduced":["11.0.0-preview.1"],"last_affected":[],"package":"Microsoft.NETCore.App.Runtime.linux-musl-x64","purl":"pkg:nuget/Microsoft.NETCore.App.Runtime.linux-musl-x64","source":"GHSA-wxxw-5cvc-53j7"},{"ecosystem":"NuGet","fixed":["8.0.32"],"introduced":["8.0.0"],"last_affected":[],"package":"Microsoft.NETCore.App.Runtime.linux-musl-x64","purl":null,"source":"GHSA-wxxw-5cvc-53j7"},{"ecosystem":"NuGet","fixed":["8.0.32"],"introduced":["8.0.0"],"last_affected":[],"package":"Microsoft.NETCore.App.Runtime.linux-musl-x64","purl":"pkg:nuget/Microsoft.NETCore.App.Runtime.linux-musl-x64","source":"GHSA-wxxw-5cvc-53j7"},{"ecosystem":"NuGet","fixed":["9.0.21"],"introduced":["9.0.0"],"last_affected":[],"package":"Microsoft.NETCore.App.Runtime.linux-musl-x64","purl":null,"source":"GHSA-wxxw-5cvc-53j7"},{"ecosystem":"NuGet","fixed":["9.0.21"],"introduced":["9.0.0"],"last_affected":[],"package":"Microsoft.NETCore.App.Runtime.linux-musl-x64","purl":"pkg:nuget/Microsoft.NETCore.App.Runtime.linux-musl-x64","source":"GHSA-wxxw-5cvc-53j7"}],"prev":{"headline":"SQL Server Elevation of Privilege Vulnerability","id":"CVE-2026-66820"},"products":[".NET 10.0 runtime",".NET 11.0 runtime",".NET 8.0 runtime",".NET 9.0 runtime","Microsoft Visual Studio 2022 version 17.14","Microsoft Visual Studio 2026 version 18.10"],"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":"no","exploitation":"none","technical_impact":"partial"},"state":"PUBLISHED","updated":"2026-10-29","vendors":["Microsoft"]},"summary":"An attacker can disclose sensitive information over the network due to improper data handling in the .NET runtime.","url":"https://insights.sbomify.com/CVE-2026-66822/"}