{"answers":{"affected":"8 open source packages ship an affected version, including Microsoft.OpenApi.Kiota and Microsoft.OpenApi.Kiota.Builder.","exploited":"There is no known exploitation of CVE-2026-59864 in the wild and no public exploit code.","fix":"Upgrade Microsoft.OpenApi.Kiota to a fixed version for your release line: 1.29.1 or 1.32.5.","what":"CVE-2026-59864 is a critical path traversal vulnerability in microsoft kiota, published on 16 Jul 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-2026-59864 and fix it if it is affected.\n\nWhat it is: CVE-2026-59864 is a critical path traversal vulnerability in microsoft kiota, published on 16 Jul 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-2026-59864 in the wild and no public exploit code.\n\nAffected packages and fixed versions:\n- Microsoft.OpenApi.Kiota (NuGet): affected all versions; fixed in 1.29.1\n- Microsoft.OpenApi.Kiota (NuGet): affected all versions; fixed in 1.29.1\n- Microsoft.OpenApi.Kiota (NuGet): affected from 1.30.0; fixed in 1.32.5\n- Microsoft.OpenApi.Kiota (NuGet): affected from 1.30.0; fixed in 1.32.5\n- Microsoft.OpenApi.Kiota.Builder (NuGet): affected all versions; fixed in 1.29.1\n- Microsoft.OpenApi.Kiota.Builder (NuGet): affected all versions; fixed in 1.29.1\n- Microsoft.OpenApi.Kiota.Builder (NuGet): affected from 1.30.0; fixed in 1.32.5\n- Microsoft.OpenApi.Kiota.Builder (NuGet): affected from 1.30.0; fixed in 1.32.5\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-2026-59864/ (Markdown: https://insights.sbomify.com/CVE-2026-59864/index.md)","id":"CVE-2026-59864","markdown":"https://insights.sbomify.com/CVE-2026-59864/index.md","name":"CVE-2026-59864","record":{"aliases":["GHSA-4jwf-m4wg-8p66"],"analysis":{"component_type":"developer_tool","fix_type":"upgrade","impacts":["data_read","code_execution"],"network_reachable":"yes","non_default_config":false,"product_category":"Kiota code generator","requires_auth":"none","summary":"Attackers can inject malicious paths into generated Copilot plugin manifests, leading to path traversal or file inclusion upon deployment.","user_interaction":"not_required","vuln_class":"path_traversal"},"analysis_generated_by":"qwen3.8-flash-next","assigner":"GitHub_M","cpe":[],"cvss":{"score":9.3,"severity":"critical","source":"cna","vector":"CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N","version":"4.0"},"cwes":[{"id":"CWE-829","name":"Inclusion of Functionality from Untrusted Control Sphere"},{"id":"CWE-22","name":"Improper Limitation of a Pathname to a Restricted Directory"}],"description":"Kiota is an OpenAPI based HTTP Client code generator. Prior to 1.29.1 and 1.32.5, `kiota plugin add` and `kiota plugin generate` (with `-t APIPlugin`) emitted attacker-controlled static_template.file values from x-ai-adaptive-card and x-ai-capabilities into generated Microsoft 365 Copilot and Teams plugin manifests without path validation, allowing ../, absolute, rooted, UNC, Windows drive, or URI paths in response_semantics.static_template.file to cause path traversal or out-of-package file inclusion when the generated plugin was deployed. This issue is fixed in version 1.29.1 and 1.32.5.","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":"Kiota: Path/URL injection into generated Copilot plugin manifest via x-ai-* extensions","id":"CVE-2026-59864","indexable":true,"kev":null,"kind":"cve","links":{"ecosystem":"NuGet","product":null,"products":[],"type":"path_traversal","year":"2026"},"n_packages":8,"n_references":4,"next":{"headline":"Kiota: Command injection via x-ms-kiota-info dependencyInstallCommand surfaced by `kiota info`","id":"CVE-2026-59865"},"packages":[{"ecosystem":"NuGet","fixed":["1.29.1"],"introduced":["0"],"last_affected":[],"package":"Microsoft.OpenApi.Kiota","purl":null,"source":"GHSA-4jwf-m4wg-8p66"},{"ecosystem":"NuGet","fixed":["1.29.1"],"introduced":["0"],"last_affected":[],"package":"Microsoft.OpenApi.Kiota","purl":"pkg:nuget/Microsoft.OpenApi.Kiota","source":"GHSA-4jwf-m4wg-8p66"},{"ecosystem":"NuGet","fixed":["1.32.5"],"introduced":["1.30.0"],"last_affected":[],"package":"Microsoft.OpenApi.Kiota","purl":null,"source":"GHSA-4jwf-m4wg-8p66"},{"ecosystem":"NuGet","fixed":["1.32.5"],"introduced":["1.30.0"],"last_affected":[],"package":"Microsoft.OpenApi.Kiota","purl":"pkg:nuget/Microsoft.OpenApi.Kiota","source":"GHSA-4jwf-m4wg-8p66"},{"ecosystem":"NuGet","fixed":["1.29.1"],"introduced":["0"],"last_affected":[],"package":"Microsoft.OpenApi.Kiota.Builder","purl":null,"source":"GHSA-4jwf-m4wg-8p66"},{"ecosystem":"NuGet","fixed":["1.29.1"],"introduced":["0"],"last_affected":[],"package":"Microsoft.OpenApi.Kiota.Builder","purl":"pkg:nuget/Microsoft.OpenApi.Kiota.Builder","source":"GHSA-4jwf-m4wg-8p66"},{"ecosystem":"NuGet","fixed":["1.32.5"],"introduced":["1.30.0"],"last_affected":[],"package":"Microsoft.OpenApi.Kiota.Builder","purl":null,"source":"GHSA-4jwf-m4wg-8p66"},{"ecosystem":"NuGet","fixed":["1.32.5"],"introduced":["1.30.0"],"last_affected":[],"package":"Microsoft.OpenApi.Kiota.Builder","purl":"pkg:nuget/Microsoft.OpenApi.Kiota.Builder","source":"GHSA-4jwf-m4wg-8p66"}],"prev":{"headline":"Kiota: Workspace-config poisoning: out-of-repo file write + generation-time SSRF","id":"CVE-2026-59863"},"products":["kiota"],"published":"2026-07-16","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":"total"},"state":"PUBLISHED","updated":"2026-08-17","vendors":["microsoft"]},"summary":"Attackers can inject malicious paths into generated Copilot plugin manifests, leading to path traversal or file inclusion upon deployment.","url":"https://insights.sbomify.com/CVE-2026-59864/"}