{"answers":{"affected":"","exploited":"There is no known exploitation of CVE-2026-121750 in the wild and no public exploit code.","exposure":"","fix":"No fix has been published for CVE-2026-121750 yet. Limit exposure of the affected software until one is available.","what":"CVE-2026-121750 is a low-severity vulnerability in nvm-sh nvm, published on 4 Nov 2026."},"fix_prompt":"Check this codebase for CVE-2026-121750 and fix it if it is affected.\n\nWhat it is: CVE-2026-121750 is a low-severity vulnerability in nvm-sh nvm, published on 4 Nov 2026. \nExploitation: There is no known exploitation of CVE-2026-121750 in the wild and no public exploit code.\n\nAffected product: nvm-sh nvm. 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-2026-121750/ (Markdown: https://insights.sbomify.com/CVE-2026-121750/index.md)","id":"CVE-2026-121750","markdown":"https://insights.sbomify.com/CVE-2026-121750/index.md","name":"CVE-2026-121750","record":{"aliases":["GHSA-262q-c465-prmr"],"analysis":null,"analysis_generated_by":null,"assigner":"harborist","cpe":[],"cvss":{"score":2.1,"severity":"low","source":"cna","vector":"CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:A/VC:N/VI:L/VA:N/SC:N/SI:N/SA:N","version":"4.0"},"cwes":[{"id":"CWE-494","name":"Download of Code Without Integrity Check"},{"id":"CWE-459","name":"Incomplete Cleanup"}],"description":"Node Version Manager (nvm) is a POSIX-compliant shell function for managing multiple node.js versions. In versions 0.40.5 through 0.40.8, `nvm_download_artifact` downloads a release archive directly to its final path in `$NVM_DIR/.cache` and verifies its checksum afterwards; on a checksum mismatch it reports an error but leaves the rejected archive in place. A later `nvm install --offline` of the same version installs that cached file without a checksum, so an archive that was just rejected gets installed and its `node` and `npm` run. This gives code execution to a party who can alter the downloaded tarball (for example a poisoned CDN or cache object) but cannot also forge the `SHASUMS256.txt` beside it, if the victim runs `nvm install --offline` for that version after the visible \"Checksums do not match\" failure and before any online retry. Version 0.41.0 only puts an archive in the cache once its checksum has passed.","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":"nvm install --offline installs a cached tarball that previously failed checksum verification","id":"CVE-2026-121750","indexable":true,"kev":null,"kind":"cve","links":{"ecosystem":null,"product":null,"products":[],"type":null,"year":"2026"},"n_packages":0,"n_references":2,"next":{"headline":"nvm evaluates a malicious mirror's index.tab version strings as shell arithmetic via stored LTS aliases","id":"CVE-2026-121751"},"nickname":null,"packages":[],"prev":{"headline":"nvm passes the version pattern to grep without -e, letting a .nvmrc inject grep options and read local files","id":"CVE-2026-121749"},"products":["nvm"],"published":"2026-11-04","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":"partial"},"state":"PUBLISHED","updated":"2026-11-09","vendors":["nvm-sh"]},"summary":null,"url":"https://insights.sbomify.com/CVE-2026-121750/"}