{"answers":{"affected":"It affects 1 product.","exploited":"It is not confirmed as exploited in the wild, but public exploit code for CVE-2026-52885 exists.","fix":"No fix has been published for CVE-2026-52885 yet. Limit exposure of the affected software until one is available.","what":"CVE-2026-52885 is a high-severity vulnerability in notepad-plus-plus, published on 26 Jun 2026. It can only be exploited from the same machine or local network, with no action from the victim."},"fix_prompt":"Check this codebase for CVE-2026-52885 and fix it if it is affected.\n\nWhat it is: CVE-2026-52885 is a high-severity vulnerability in notepad-plus-plus, published on 26 Jun 2026. It can only be exploited from the same machine or local network, with no action from the victim.\nExploitation: It is not confirmed as exploited in the wild, but public exploit code for CVE-2026-52885 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-2026-52885/ (Markdown: https://insights.sbomify.com/CVE-2026-52885/index.md)","id":"CVE-2026-52885","markdown":"https://insights.sbomify.com/CVE-2026-52885/index.md","name":"CVE-2026-52885","record":{"aliases":["GHSA-qm4c-qg8p-qfcr"],"analysis":{"component_type":"desktop_application","fix_type":"upgrade","impacts":["code_execution"],"network_reachable":"adjacent_or_local","non_default_config":false,"product_category":"Notepad++ editor","requires_auth":"none","summary":"Attackers can execute arbitrary code by exploiting a race condition between HMAC validation and memory execution in Notepad++.","user_interaction":"not_required","vuln_class":"race_condition"},"analysis_generated_by":"qwen3.8-flash-next","assigner":"GitHub_M","cpe":[{"product":"notepad\\+\\+","vendor":"notepad-plus-plus"}],"cvss":{"score":7.5,"severity":"high","source":"cna","vector":"CVSS:4.0/AV:L/AC:H/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N","version":"4.0"},"cwes":[{"id":"CWE-367","name":"Time-of-check Time-of-use (TOCTOU) Race Condition"}],"description":"Notepad++ is a free and open-source source code editor. Prior to 8.9.6.4, NppCommands.cpp checks the HMAC of the on-disk shortcuts.xml at the moment a user command fires (Time-of-Check). However, the command payload is taken from the in-memory _userCommands vector, which is populated at application startup and never re-synchronized with the on-disk file (Time-of-Use). Swapping shortcuts.xml between startup and command execution causes the HMAC check to validate a clean file while a malicious command runs. An attacker with write access to shortcuts.xml places a malicious version on disk before launch, then immediately restores the legitimate file. The HMAC check at execution time validates the restored legitimate file (check passes), while the malicious payload executes from memory. This vulnerability is fixed in 8.9.6.4.","ecosystems":[],"exploits":{"exploitdb":0,"first_seen":"2026-06-09","github_poc":1,"max_poc_stars":1,"metasploit":0,"nuclei":0,"refs":[{"date":"2026-06-09T17:37:30Z","kind":"github_poc","ref":"https://github.com/v3s9er/CVE-2026-52885","stars":1,"title":null}],"tier":"weaponised"},"has_fix":false,"headline":"Notepad++ TOCTOU: HMAC Checks Disk, Executes from Memory","id":"CVE-2026-52885","indexable":true,"kev":null,"kind":"cve","links":{"ecosystem":null,"product":null,"products":[],"type":"race_condition","year":"2026"},"n_packages":0,"n_references":2,"next":{"headline":"Notepad++: session.xml backupFilePath starts_with Bypass","id":"CVE-2026-52886"},"packages":[],"prev":{"headline":"Notepad++: CVE-2026-48800 Bypass","id":"CVE-2026-52884"},"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":"total"},"state":"PUBLISHED","updated":"2026-06-29","vendors":["notepad-plus-plus"]},"summary":"Attackers can execute arbitrary code by exploiting a race condition between HMAC validation and memory execution in Notepad++.","url":"https://insights.sbomify.com/CVE-2026-52885/"}