{"answers":{"affected":"6 open source packages ship an affected version, including Microsoft.AspNetCore.Authentication.Negotiate.","exploited":"There is no known exploitation of CVE-2026-70179 in the wild and no public exploit code.","fix":"Upgrade Microsoft.AspNetCore.Authentication.Negotiate to a fixed version for your release line: 10.0.13, 8.0.32 or 9.0.21.","what":"CVE-2026-70179 is a high-severity authentication bypass vulnerability in Microsoft Visual Studio 2022 version 17.14, published on 13 Oct 2026. Any signed-in user can exploit it over the network, with no action from the victim."},"fix_prompt":"Check this codebase for CVE-2026-70179 and fix it if it is affected.\n\nWhat it is: CVE-2026-70179 is a high-severity authentication bypass vulnerability in Microsoft Visual Studio 2022 version 17.14, published on 13 Oct 2026. Any signed-in user can exploit it over the network, with no action from the victim.\nExploitation: There is no known exploitation of CVE-2026-70179 in the wild and no public exploit code.\n\nAffected packages and fixed versions:\n- Microsoft.AspNetCore.Authentication.Negotiate (NuGet): affected from 10.0.0; fixed in 10.0.13\n- Microsoft.AspNetCore.Authentication.Negotiate (NuGet): affected from 10.0.0; fixed in 10.0.13\n- Microsoft.AspNetCore.Authentication.Negotiate (NuGet): affected from 8.0.0; fixed in 8.0.32\n- Microsoft.AspNetCore.Authentication.Negotiate (NuGet): affected from 8.0.0; fixed in 8.0.32\n- Microsoft.AspNetCore.Authentication.Negotiate (NuGet): affected from 9.0.0; fixed in 9.0.21\n- Microsoft.AspNetCore.Authentication.Negotiate (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-2026-70179/ (Markdown: https://insights.sbomify.com/CVE-2026-70179/index.md)","id":"CVE-2026-70179","markdown":"https://insights.sbomify.com/CVE-2026-70179/index.md","name":"CVE-2026-70179","record":{"aliases":["GHSA-vrrp-6v32-2p8g","UBUNTU-CVE-2026-70179"],"analysis":{"component_type":"library","fix_type":"patch","impacts":["privilege_escalation"],"network_reachable":"yes","non_default_config":false,"product_category":"ASP.NET Core Authentication","requires_auth":"low_privilege","summary":"An authentication bypass in ASP.NET Core allows authorized attackers to elevate privileges over the network via spoofing.","user_interaction":"not_required","vuln_class":"auth_bypass"},"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:H/PR:L/UI:N/S:U/C:H/I:H/A:H/E:U/RL:O/RC:C","version":"3.1"},"cwes":[{"id":"CWE-290","name":"Authentication Bypass by Spoofing"}],"description":"Authentication bypass by spoofing in ASP.NET Core allows an authorized attacker to elevate privileges 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 Elevation of Privilege Vulnerability","id":"CVE-2026-70179","indexable":true,"kev":null,"kind":"cve","links":{"ecosystem":"NuGet","product":null,"products":[],"type":"auth_bypass","year":"2026"},"n_packages":6,"n_references":1,"next":{"headline":"ASP.NET Core Denial of Service Vulnerability","id":"CVE-2026-70181"},"packages":[{"ecosystem":"NuGet","fixed":["10.0.13"],"introduced":["10.0.0"],"last_affected":[],"package":"Microsoft.AspNetCore.Authentication.Negotiate","purl":null,"source":"GHSA-vrrp-6v32-2p8g"},{"ecosystem":"NuGet","fixed":["10.0.13"],"introduced":["10.0.0"],"last_affected":[],"package":"Microsoft.AspNetCore.Authentication.Negotiate","purl":"pkg:nuget/Microsoft.AspNetCore.Authentication.Negotiate","source":"GHSA-vrrp-6v32-2p8g"},{"ecosystem":"NuGet","fixed":["8.0.32"],"introduced":["8.0.0"],"last_affected":[],"package":"Microsoft.AspNetCore.Authentication.Negotiate","purl":null,"source":"GHSA-vrrp-6v32-2p8g"},{"ecosystem":"NuGet","fixed":["8.0.32"],"introduced":["8.0.0"],"last_affected":[],"package":"Microsoft.AspNetCore.Authentication.Negotiate","purl":"pkg:nuget/Microsoft.AspNetCore.Authentication.Negotiate","source":"GHSA-vrrp-6v32-2p8g"},{"ecosystem":"NuGet","fixed":["9.0.21"],"introduced":["9.0.0"],"last_affected":[],"package":"Microsoft.AspNetCore.Authentication.Negotiate","purl":null,"source":"GHSA-vrrp-6v32-2p8g"},{"ecosystem":"NuGet","fixed":["9.0.21"],"introduced":["9.0.0"],"last_affected":[],"package":"Microsoft.AspNetCore.Authentication.Negotiate","purl":"pkg:nuget/Microsoft.AspNetCore.Authentication.Negotiate","source":"GHSA-vrrp-6v32-2p8g"}],"prev":{"headline":"Microsoft Fabric Elevation of Privilege Vulnerability","id":"CVE-2026-70178"},"products":["Microsoft Visual Studio 2022 version 17.14","Microsoft Visual Studio 2026 version 18.10","Microsoft.AspNetCore.Authentication.Negotiate"],"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":"total"},"state":"PUBLISHED","updated":"2026-10-29","vendors":["Microsoft"]},"summary":"An authentication bypass in ASP.NET Core allows authorized attackers to elevate privileges over the network via spoofing.","url":"https://insights.sbomify.com/CVE-2026-70179/"}