{"answers":{"affected":"4 open source packages ship an affected version, including trim-newlines. It affects 3 products.","exploited":"There is no known exploitation of CVE-2021-33623 in the wild and no public exploit code.","fix":"Upgrade trim-newlines to a fixed version for your release line: 3.0.1 or 4.0.1.","what":"CVE-2021-33623 is a high-severity denial of service vulnerability in Debian Debian Linux, published on 28 May 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-2021-33623 and fix it if it is affected.\n\nWhat it is: CVE-2021-33623 is a high-severity denial of service vulnerability in Debian Debian Linux, published on 28 May 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-2021-33623 in the wild and no public exploit code.\n\nAffected packages and fixed versions:\n- trim-newlines (npm): affected all versions; fixed in 3.0.1\n- trim-newlines (npm): affected all versions; fixed in 3.0.1\n- trim-newlines (npm): affected from 4.0.0; fixed in 4.0.1\n- trim-newlines (npm): affected from 4.0.0; fixed in 4.0.1\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-2021-33623/ (Markdown: https://insights.sbomify.com/CVE-2021-33623/index.md)","id":"CVE-2021-33623","markdown":"https://insights.sbomify.com/CVE-2021-33623/index.md","name":"CVE-2021-33623","record":{"aliases":["CLSA-2026-1772496678","CLSA-2026-1773015268","CLSA-2026-1777163883","DEBIAN-CVE-2021-33623","DLA-3247-1","GHSA-7p7h-4mm5-852v","ROOT-APP-NPM-CVE-2021-33623","UBUNTU-CVE-2021-33623","USN-5999-1"],"analysis":{"component_type":"library","fix_type":"upgrade","impacts":["denial_of_service"],"network_reachable":"yes","non_default_config":false,"product_category":"Node.js trim-newlines package","requires_auth":"none","summary":"An attacker can cause a denial of service in applications using the trim-newlines library via a regular expression denial-of-service attack.","user_interaction":"not_required","vuln_class":"denial_of_service"},"analysis_generated_by":"qwen3.8-flash-next","assigner":"mitre","cpe":[{"product":"debian_linux","vendor":"debian"},{"product":"e-series_performance_analyzer","vendor":"netapp"},{"product":"trim-newlines","vendor":"trim-newlines_project"}],"cvss":{"score":7.5,"severity":"high","source":"nvd","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":"The trim-newlines package before 3.0.1 and 4.x before 4.0.1 for Node.js has an issue related to regular expression denial-of-service (ReDoS) for the .end() method.","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":"Uncontrolled Resource Consumption in trim-newlines","id":"CVE-2021-33623","indexable":true,"kev":null,"kind":"cve","links":{"ecosystem":"npm","product":"debian:debian_linux","products":["debian:debian_linux","netapp:e-series_performance_analyzer"],"type":"denial_of_service","year":"2021"},"n_packages":4,"n_references":4,"next":{"headline":"Information disclosure in n/a","id":"CVE-2021-33624"},"packages":[{"ecosystem":"npm","fixed":["3.0.1"],"introduced":["0"],"last_affected":[],"package":"trim-newlines","purl":null,"source":"GHSA-7p7h-4mm5-852v"},{"ecosystem":"npm","fixed":["3.0.1"],"introduced":["0"],"last_affected":[],"package":"trim-newlines","purl":"pkg:npm/trim-newlines","source":"GHSA-7p7h-4mm5-852v"},{"ecosystem":"npm","fixed":["4.0.1"],"introduced":["4.0.0"],"last_affected":[],"package":"trim-newlines","purl":null,"source":"GHSA-7p7h-4mm5-852v"},{"ecosystem":"npm","fixed":["4.0.1"],"introduced":["4.0.0"],"last_affected":[],"package":"trim-newlines","purl":"pkg:npm/trim-newlines","source":"GHSA-7p7h-4mm5-852v"}],"prev":{"headline":"Other in n/a","id":"CVE-2021-33622"},"products":["n/a"],"published":"2021-05-28","related":[{"cvss_score":10,"headline":"ProFTPD Improper Access Control","id":"CVE-2015-3306","kev_date_added":"2026-10-08","published":"2015-05-18"},{"cvss_score":9.9,"headline":"RoundCube Webmail Deserialization of Untrusted Data","id":"CVE-2025-49113","kev_date_added":"2026-02-20","published":"2025-06-02"},{"cvss_score":9.8,"headline":"GNU InetUtils Argument Injection","id":"CVE-2026-24061","kev_date_added":"2026-01-26","published":"2026-01-21"},{"cvss_score":9.8,"headline":"Linux Kernel Improper Check for Unusual or Exceptional Conditions","id":"CVE-2025-39682","kev_date_added":"2026-09-18","published":"2025-09-05"},{"cvss_score":9.8,"headline":"Mozilla Firefox Use-After-Free","id":"CVE-2024-9680","kev_date_added":"2024-10-15","published":"2024-10-09"},{"cvss_score":9.8,"headline":"RARLAB UnRAR Directory Traversal","id":"CVE-2022-30333","kev_date_added":"2022-08-09","published":"2022-05-09"},{"cvss_score":9.8,"headline":"Roundcube Webmail SQL Injection","id":"CVE-2021-44026","kev_date_added":"2023-06-22","published":"2021-11-19"}],"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":"2024-08-03","vendors":["n/a"]},"summary":"An attacker can cause a denial of service in applications using the trim-newlines library via a regular expression denial-of-service attack.","url":"https://insights.sbomify.com/CVE-2021-33623/"}