{"answers":{"affected":"It affects 1 product.","exploited":"There is no known exploitation of CVE-2026-55892 in the wild and no public exploit code.","fix":"Upgrade to a fixed version.","what":"CVE-2026-55892 is a medium-severity memory corruption vulnerability in Vim Vim, published on 25 Jun 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-2026-55892 and fix it if it is affected.\n\nWhat it is: CVE-2026-55892 is a medium-severity memory corruption vulnerability in Vim Vim, published on 25 Jun 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-2026-55892 in the wild and no public exploit code.\n\nAffected product: Vim Vim. 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-2026-55892/ (Markdown: https://insights.sbomify.com/CVE-2026-55892/index.md)","id":"CVE-2026-55892","markdown":"https://insights.sbomify.com/CVE-2026-55892/index.md","name":"CVE-2026-55892","record":{"aliases":["ALPINE-CVE-2026-55892","AZL-91113","BELL-CVE-2026-55892","CLSA-2026-1782896527","CLSA-2026-1782896779","CLSA-2026-1782897117","CLSA-2026-1782920014","CLSA-2026-1783628874","DEBIAN-CVE-2026-55892","ECHO-adfb-b32c-d03e","GHSA-qm9w-fmpj-879h","MINI-x6jp-34x6-p9j4","UBUNTU-CVE-2026-55892"],"analysis":{"component_type":"desktop_application","fix_type":"upgrade","impacts":["denial_of_service","code_execution"],"network_reachable":"adjacent_or_local","non_default_config":false,"product_category":"Vim text editor","requires_auth":"none","summary":"A crafted spell file causes an out-of-bounds write in Vim, leading to crashes or potential code execution when dumping word lists.","user_interaction":"required","vuln_class":"memory_corruption"},"analysis_generated_by":"qwen3.8-flash-next","assigner":"GitHub_M","cpe":[{"product":"vim","vendor":"vim"}],"cvss":{"score":5.5,"severity":"medium","source":"cna","vector":"CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H","version":"3.1"},"cwes":[{"id":"CWE-787","name":"Out-of-bounds Write"}],"description":"Vim is an open source, command line text editor. Prior to 9.2.0662, the dump_prefixes() function in src/spell.c walks a spell-file prefix trie iteratively with a depth counter while dumping the prefixes that apply to a word. The counter is bounded only by the trie structure itself; it is never checked against the size of the fixed MAXWLEN-element stack arrays it indexes (prefix[], arridx[], curi[]). A crafted .spl file, loaded when the user dumps the word list, can drive the descent arbitrarily deep, so the function writes past the end of those arrays. This is a stack out-of-bounds write that corrupts the call frame and crashes the editor. This vulnerability is fixed in 9.2.0662.","ecosystems":[],"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":"Vim: Out-of-bounds Write in Spell File Prefix Dump","id":"CVE-2026-55892","indexable":true,"kev":null,"kind":"cve","links":{"ecosystem":null,"product":"vim:vim","products":["vim:vim"],"type":"memory_corruption","year":"2026"},"n_packages":0,"n_references":3,"next":{"headline":"Capstone SH disassembler `set_reg_n` heap buffer overflow via crafted SH2A FPU bytecode","id":"CVE-2026-55893"},"packages":[],"prev":{"headline":"PrivateBin: Reflected JSON injection in backend responses via unescaped REQUEST_URI","id":"CVE-2026-55891"},"products":["vim"],"published":"2026-06-25","related":[{"cvss_score":9.8,"headline":"Memory corruption in n/a","id":"CVE-2020-20703","kev_date_added":null,"published":"2023-06-20"},{"cvss_score":9.8,"headline":"Integer overflow in n/a","id":"CVE-2017-6349","kev_date_added":null,"published":"2017-02-27"},{"cvss_score":9.8,"headline":"Integer overflow in n/a","id":"CVE-2017-6350","kev_date_added":null,"published":"2017-02-27"},{"cvss_score":9.8,"headline":"Integer overflow in n/a","id":"CVE-2017-5953","kev_date_added":null,"published":"2017-02-10"},{"cvss_score":9.3,"headline":"Command injection in n/a","id":"CVE-2008-3075","kev_date_added":null,"published":"2009-02-21"},{"cvss_score":9.3,"headline":"Command injection in n/a","id":"CVE-2008-3076","kev_date_added":null,"published":"2009-02-21"},{"cvss_score":9.3,"headline":"Command injection in n/a","id":"CVE-2008-6235","kev_date_added":null,"published":"2009-02-21"}],"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)"}],"ssvc":{"automatable":"no","exploitation":"none","technical_impact":"partial"},"state":"PUBLISHED","updated":"2026-06-26","vendors":["vim"]},"summary":"A crafted spell file causes an out-of-bounds write in Vim, leading to crashes or potential code execution when dumping word lists.","url":"https://insights.sbomify.com/CVE-2026-55892/"}