{"answers":{"affected":"It affects 1 product.","exploited":"It is not confirmed as exploited in the wild, but public exploit code for CVE-2026-48770 exists.","fix":"No fix has been published for CVE-2026-48770 yet. Limit exposure of the affected software until one is available.","what":"CVE-2026-48770 is a medium-severity vulnerability in notepad-plus-plus, published on 26 Jun 2026."},"fix_prompt":"Check this codebase for CVE-2026-48770 and fix it if it is affected.\n\nWhat it is: CVE-2026-48770 is a medium-severity vulnerability in notepad-plus-plus, published on 26 Jun 2026. \nExploitation: It is not confirmed as exploited in the wild, but public exploit code for CVE-2026-48770 exists.\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-2026-48770/ (Markdown: https://insights.sbomify.com/CVE-2026-48770/index.md)","id":"CVE-2026-48770","markdown":"https://insights.sbomify.com/CVE-2026-48770/index.md","name":"CVE-2026-48770","record":{"aliases":["GHSA-r39g-3mcw-xcg2"],"analysis":null,"analysis_generated_by":null,"assigner":"GitHub_M","cpe":[{"product":"notepad\\+\\+","vendor":"notepad-plus-plus"}],"cvss":{"score":5,"severity":"medium","source":"cna","vector":"CVSS:3.1/AV:L/AC:L/PR:L/UI:R/S:U/C:N/I:N/A:H","version":"3.1"},"cwes":[{"id":"CWE-125","name":"Out-of-bounds Read"}],"description":"Notepad++ is a free and open-source source code editor. Prior to 8.9.6.1, a local process in the same interactive Windows session can send a malformed WM_COPYDATA message to Notepad++ using the COPYDATA_FULL_CMDLINE path. The handler appears to process COPYDATASTRUCT.lpData as an unbounded NUL-terminated wchar_t* instead of enforcing COPYDATASTRUCT.cbData. This vulnerability is fixed in 8.9.6.1.","ecosystems":[],"exploits":{"exploitdb":0,"first_seen":"2026-05-28","github_poc":1,"max_poc_stars":6,"metasploit":0,"nuclei":0,"refs":[{"date":"2026-05-28T22:25:15Z","kind":"github_poc","ref":"https://github.com/atiilla/Notepad-8.9.6-PoC","stars":6,"title":"Proof-of-concept scripts for three vulnerabilities in Notepad++ \u003c= 8.9.6, patched in v8.9.6.1 (2026-05-26) CVE-2026-48770 / CVE-2026-48778 / CVE-2026-48800"}],"tier":"weaponised"},"has_fix":false,"headline":"Notepad++ WM_COPYDATA COPYDATA_FULL_CMDLINE local DoS crash","id":"CVE-2026-48770","indexable":true,"kev":null,"kind":"cve","links":{"ecosystem":null,"product":null,"products":[],"type":null,"year":"2026"},"n_packages":0,"n_references":2,"next":{"headline":"ishankportfolio: Stored Contact Form Submission Exposure via Public Client-Side Database Configuration","id":"CVE-2026-48771"},"packages":[],"prev":{"headline":"Incus has an arbitrary file write on its client due to trusted image hash","id":"CVE-2026-48769"},"products":["notepad-plus-plus"],"published":"2026-06-26","related":[{"cvss_score":7.7,"headline":"Notepad++ Download of Code Without Integrity Check","id":"CVE-2025-15556","kev_date_added":"2026-02-12","published":"2026-02-03"},{"cvss_score":7.8,"headline":"Notepad++: Arbitrary Code Execution via config.xml commandLineInterpreter","id":"CVE-2026-48778","kev_date_added":null,"published":"2026-06-26"},{"cvss_score":7.8,"headline":"Notepad++: Arbitrary Code Execution via shortcuts.xml UserCommand Injection","id":"CVE-2026-48800","kev_date_added":null,"published":"2026-06-26"},{"cvss_score":7.8,"headline":"Notepad++: CVE-2026-48800 Bypass","id":"CVE-2026-52884","kev_date_added":null,"published":"2026-06-26"},{"cvss_score":7.8,"headline":"Privilege escalation in n/a","id":"CVE-2023-47452","kev_date_added":null,"published":"2023-11-30"},{"cvss_score":7.8,"headline":"Notepad++ vulnerable to heap buffer write overflow in Utf8_16_Read::convert","id":"CVE-2023-40031","kev_date_added":null,"published":"2023-08-25"},{"cvss_score":7.8,"headline":"notepad-plus-plus - DLL Hijacking","id":"CVE-2022-32168","kev_date_added":null,"published":"2022-09-28"}],"sources":[{"class":"attribution","licence":"CVE Terms of Use (MITRE)","name":"CVE List","prefix":"CVE"},{"class":"attribution","licence":"US public information, NVD API terms","name":"NVD"},{"class":"attribution","licence":"CWE Terms of Use","name":"CWE (MITRE)"},{"class":"attribution","licence":"FIRST CVSS licence","name":"CVSS (FIRST)"},{"class":"open","licence":"CC0","name":"PoC-in-GitHub"}],"ssvc":{"automatable":"no","exploitation":"poc","technical_impact":"partial"},"state":"PUBLISHED","updated":"2026-06-29","vendors":["notepad-plus-plus"]},"summary":null,"url":"https://insights.sbomify.com/CVE-2026-48770/"}