{"answers":{"affected":"2 open source packages ship an affected version, including three. It affects 1 product.","exploited":"There is no known exploitation of CVE-2020-28496 in the wild and no public exploit code.","fix":"Upgrade three to 0.125.0 or later.","what":"CVE-2020-28496 is a high-severity denial of service vulnerability in three, published on 18 Feb 2021. An attacker can exploit it over the internet without logging in, with no action from the victim."},"fix_prompt":"Check this codebase for CVE-2020-28496 and fix it if it is affected.\n\nWhat it is: CVE-2020-28496 is a high-severity denial of service vulnerability in three, published on 18 Feb 2021. An attacker can exploit it over the internet without logging in, with no action from the victim.\nExploitation: There is no known exploitation of CVE-2020-28496 in the wild and no public exploit code.\n\nAffected packages and fixed versions:\n- three (npm): affected all versions; fixed in 0.125.0\n- three (npm): affected all versions; fixed in 0.125.0\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-2020-28496/ (Markdown: https://insights.sbomify.com/CVE-2020-28496/index.md)","id":"CVE-2020-28496","markdown":"https://insights.sbomify.com/CVE-2020-28496/index.md","name":"CVE-2020-28496","record":{"aliases":["CLSA-2026-1772583176","CLSA-2026-1792760004","GHSA-fq6p-x6j3-cmmq","UBUNTU-CVE-2020-28496"],"analysis":{"component_type":"library","fix_type":"upgrade","impacts":["denial_of_service"],"network_reachable":"yes","non_default_config":false,"product_category":"Three.js 3D library","requires_auth":"none","summary":"An attacker can cause a denial of service in the Three.js library by providing specially crafted RGB or HSL color strings that trigger excessive CPU usage.","user_interaction":"not_required","vuln_class":"denial_of_service"},"analysis_generated_by":"qwen3.8-flash-next","assigner":"snyk","cpe":[{"product":"three","vendor":"three_project"}],"cvss":{"score":7.5,"severity":"high","source":"cna","vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H","version":"3.1"},"cwes":[{"id":"CWE-400","name":"Uncontrolled Resource Consumption"}],"description":"This affects the package three before 0.125.0. This can happen when handling rgb or hsl colors. PoC: var three = require('three') function build_blank (n) { var ret = \"rgb(\" for (var i = 0; i \u003c n; i++) { ret += \" \" } return ret + \"\"; } var Color = three.Color var time = Date.now(); new Color(build_blank(50000)) var time_cost = Date.now() - time; console.log(time_cost+\" ms\")","ecosystems":["npm"],"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":"Regular Expression Denial of Service (ReDoS)","id":"CVE-2020-28496","indexable":true,"kev":null,"kind":"cve","links":{"ecosystem":"npm","product":null,"products":[],"type":"denial_of_service","year":"2020"},"n_packages":2,"n_references":4,"next":{"headline":"Cryptographic Issues","id":"CVE-2020-28498"},"packages":[{"ecosystem":"npm","fixed":["0.125.0"],"introduced":["0"],"last_affected":[],"package":"three","purl":null,"source":"GHSA-fq6p-x6j3-cmmq"},{"ecosystem":"npm","fixed":["0.125.0"],"introduced":["0"],"last_affected":[],"package":"three","purl":"pkg:npm/three","source":"GHSA-fq6p-x6j3-cmmq"}],"prev":{"headline":"Prototype Pollution","id":"CVE-2020-28495"},"products":["three"],"published":"2021-02-18","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":"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":null,"exploitation":null,"technical_impact":null},"state":"PUBLISHED","updated":"2024-09-17","vendors":["n/a"]},"summary":"An attacker can cause a denial of service in the Three.js library by providing specially crafted RGB or HSL color strings that trigger excessive CPU usage.","url":"https://insights.sbomify.com/CVE-2020-28496/"}