{"answers":{"affected":"","exploited":"There is no known exploitation of CVE-2026-54758 in the wild and no public exploit code.","fix":"No fix has been published for CVE-2026-54758 yet. Limit exposure of the affected software until one is available.","what":"CVE-2026-54758 is a high-severity memory corruption vulnerability in notepad-plus-plus, published on 17 Aug 2026. It can only be exploited from the same machine or local network, and only if a user opens a file or follows a link."},"fix_prompt":"Check this codebase for CVE-2026-54758 and fix it if it is affected.\n\nWhat it is: CVE-2026-54758 is a high-severity memory corruption vulnerability in notepad-plus-plus, published on 17 Aug 2026. It can only be exploited from the same machine or local network, and only if a user opens a file or follows a link.\nExploitation: There is no known exploitation of CVE-2026-54758 in the wild and no public exploit code.\n\nAffected product: notepad-plus-plus. No package-level version data is available, so check the vendor advisory linked from the reference page.\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-2026-54758/ (Markdown: https://insights.sbomify.com/CVE-2026-54758/index.md)","id":"CVE-2026-54758","markdown":"https://insights.sbomify.com/CVE-2026-54758/index.md","name":"CVE-2026-54758","record":{"aliases":["GHSA-gv94-327x-2gc5"],"analysis":{"component_type":"desktop_application","fix_type":"upgrade","impacts":["code_execution","denial_of_service"],"network_reachable":"adjacent_or_local","non_default_config":false,"product_category":"Notepad++ text editor","requires_auth":"none","summary":"Attackers can trigger a stack buffer overflow in Notepad++ via long variable names, potentially leading to code execution or application crashes.","user_interaction":"required","vuln_class":"memory_corruption"},"analysis_generated_by":"qwen3.8-flash-next","assigner":"GitHub_M","cpe":[],"cvss":{"score":7.8,"severity":"high","source":"cna","vector":"CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H","version":"3.1"},"cwes":[{"id":"CWE-787","name":"Out-of-bounds Write"},{"id":"CWE-121","name":"Stack-based Buffer Overflow"}],"description":"Notepad++ is a free and open-source source code editor. Prior to 8.9.7, the expandNppEnvironmentStrs function in PowerEditor/src/WinControls/StaticDialog/RunDlg/RunDlg.cpp copies a Notepad++ variable name between $( and ) into the fixed-size wchar_t str[MAX_PATH] stack buffer without bounding the m loop index, allowing a name of 260 or more characters to corrupt adjacent stack data, terminate the process through __report_gsfailure, and potentially execute code. This issue is fixed in version 8.9.7.","ecosystems":[],"exploits":{"exploitdb":0,"first_seen":null,"github_poc":0,"max_poc_stars":null,"metasploit":0,"nuclei":0,"refs":[],"tier":"none_known"},"has_fix":false,"headline":"Notepad++: Stack Buffer Overflow in expandNppEnvironmentStrs","id":"CVE-2026-54758","indexable":true,"kev":null,"kind":"cve","links":{"ecosystem":null,"product":null,"products":[],"type":"memory_corruption","year":"2026"},"n_packages":0,"n_references":3,"next":{"headline":"Cross-site scripting in siyuan","id":"CVE-2026-54759"},"packages":[],"prev":{"headline":"Trestle has Server-Side Template Injection (SSTI) via Recursive Template Re-evaluation of Untrusted Data","id":"CVE-2026-54757"},"products":["notepad-plus-plus"],"published":"2026-08-17","related":[],"sources":[{"class":"attribution","licence":"CVE Terms of Use (MITRE)","name":"CVE List","prefix":"CVE"},{"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":"2026-08-17","vendors":["notepad-plus-plus"]},"summary":"Attackers can trigger a stack buffer overflow in Notepad++ via long variable names, potentially leading to code execution or application crashes.","url":"https://insights.sbomify.com/CVE-2026-54758/"}