{"answers":{"affected":"2 open source packages ship an affected version, including vyper.","exploited":"There is no known exploitation of CVE-2020-37288 in the wild and no public exploit code.","fix":"Upgrade vyper to 0.2.3 or later.","what":"CVE-2020-37288 is a medium-severity vulnerability in vyperlang vyper, published on 21 Oct 2026."},"fix_prompt":"Check this codebase for CVE-2020-37288 and fix it if it is affected.\n\nWhat it is: CVE-2020-37288 is a medium-severity vulnerability in vyperlang vyper, published on 21 Oct 2026. \nExploitation: There is no known exploitation of CVE-2020-37288 in the wild and no public exploit code.\n\nAffected packages and fixed versions:\n- vyper (PyPI): affected from 0.1.0b10; fixed in 0.2.3\n- vyper (PyPI): affected from 0.1.0b10; fixed in 0.2.3\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-2020-37288/ (Markdown: https://insights.sbomify.com/CVE-2020-37288/index.md)","id":"CVE-2020-37288","markdown":"https://insights.sbomify.com/CVE-2020-37288/index.md","name":"CVE-2020-37288","record":{"aliases":["GHSA-4c59-5jcg-7qq8","GHSA-vg88-3v92-rjx2"],"analysis":null,"analysis_generated_by":null,"assigner":"VulnCheck","cpe":[],"cvss":{"score":6.3,"severity":"medium","source":"cna","vector":"CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:N/VC:N/VI:N/VA:L/SC:N/SI:N/SA:N","version":"4.0"},"cwes":[{"id":"CWE-670","name":"Always-Incorrect Control Flow Implementation"}],"description":"Vyper from 0.1.0b10 before 0.2.3 generates incorrect code for a return statement inside a for loop in an internal function called two or more internal calls deep, producing an invalid jump destination (stack underflow). Affected contracts revert such calls unnecessarily, which in limited circumstances could enable denial of service against public contracts.","ecosystems":["PyPI"],"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":"Vyper 0.1.0b10 before 0.2.3 Invalid Jump Destination via Return in Nested Loops","id":"CVE-2020-37288","indexable":true,"kev":null,"kind":"cve","links":{"ecosystem":"PyPI","product":null,"products":[],"type":null,"year":"2020"},"n_packages":2,"n_references":2,"next":{"headline":"Vyper before 0.3.1 Improper Input Validation of uint8 Interface Return Values","id":"CVE-2020-37289"},"packages":[{"ecosystem":"PyPI","fixed":["0.2.3"],"introduced":["0.1.0b10"],"last_affected":[],"package":"vyper","purl":null,"source":"GHSA-vg88-3v92-rjx2"},{"ecosystem":"PyPI","fixed":["0.2.3"],"introduced":["0.1.0b10"],"last_affected":[],"package":"vyper","purl":"pkg:pypi/vyper","source":"GHSA-vg88-3v92-rjx2"}],"prev":{"headline":"Vyper before 0.2.6 Call Stack Corruption via Complex Type Function Arguments","id":"CVE-2020-37287"},"products":["vyper"],"published":"2026-10-21","related":[],"sources":[{"class":"attribution","licence":"CVE Terms of Use (MITRE)","name":"CVE List","prefix":"CVE"},{"class":"attribution","licence":"CC BY 4.0","name":"GitHub Advisory Database","prefix":"GHSA"},{"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":"2026-10-21","vendors":["vyperlang"]},"summary":null,"url":"https://insights.sbomify.com/CVE-2020-37288/"}