{"answers":{"affected":"4 open source packages ship an affected version, including semver-regex. It affects 1 product.","exploited":"There is no known exploitation of CVE-2021-3795 in the wild and no public exploit code.","fix":"Upgrade semver-regex to a fixed version for your release line: 3.1.3 or 4.0.1.","what":"CVE-2021-3795 is a high-severity denial of service vulnerability in sindresorhus/semver-regex, published on 15 Sep 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-2021-3795 and fix it if it is affected.\n\nWhat it is: CVE-2021-3795 is a high-severity denial of service vulnerability in sindresorhus/semver-regex, published on 15 Sep 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-2021-3795 in the wild and no public exploit code.\n\nAffected packages and fixed versions:\n- semver-regex (npm): affected all versions; fixed in 3.1.3\n- semver-regex (npm): affected all versions; fixed in 3.1.3\n- semver-regex (npm): affected from 4.0.0; fixed in 4.0.1\n- semver-regex (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-2021-3795/ (Markdown: https://insights.sbomify.com/CVE-2021-3795/index.md)","id":"CVE-2021-3795","markdown":"https://insights.sbomify.com/CVE-2021-3795/index.md","name":"CVE-2021-3795","record":{"aliases":["GHSA-44c6-4v22-4mhx","ROOT-APP-NPM-CVE-2021-3795"],"analysis":{"component_type":"library","fix_type":"upgrade","impacts":["denial_of_service"],"network_reachable":"yes","non_default_config":false,"product_category":"JavaScript regex library","requires_auth":"none","summary":"Attackers can cause denial of service in applications using semver-regex by triggering inefficient regular expression complexity.","user_interaction":"not_required","vuln_class":"denial_of_service"},"analysis_generated_by":"qwen3.8-flash-next","assigner":"@huntrdev","cpe":[{"product":"semver-regex","vendor":"semver-regex_project"}],"cvss":{"score":7.5,"severity":"high","source":"cna","vector":"CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H","version":"3.0"},"cwes":[{"id":"CWE-1333","name":"Inefficient Regular Expression Complexity"}],"description":"semver-regex is vulnerable to Inefficient Regular Expression Complexity","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":"Inefficient Regular Expression Complexity in sindresorhus/semver-regex","id":"CVE-2021-3795","indexable":true,"kev":null,"kind":"cve","links":{"ecosystem":"npm","product":null,"products":[],"type":"denial_of_service","year":"2021"},"n_packages":4,"n_references":2,"next":{"headline":"Use After Free in vim/vim","id":"CVE-2021-3796"},"packages":[{"ecosystem":"npm","fixed":["3.1.3"],"introduced":["0"],"last_affected":[],"package":"semver-regex","purl":null,"source":"GHSA-44c6-4v22-4mhx"},{"ecosystem":"npm","fixed":["3.1.3"],"introduced":["0"],"last_affected":[],"package":"semver-regex","purl":"pkg:npm/semver-regex","source":"GHSA-44c6-4v22-4mhx"},{"ecosystem":"npm","fixed":["4.0.1"],"introduced":["4.0.0"],"last_affected":[],"package":"semver-regex","purl":null,"source":"GHSA-44c6-4v22-4mhx"},{"ecosystem":"npm","fixed":["4.0.1"],"introduced":["4.0.0"],"last_affected":[],"package":"semver-regex","purl":"pkg:npm/semver-regex","source":"GHSA-44c6-4v22-4mhx"}],"prev":{"headline":"Inefficient Regular Expression Complexity in vuelidate/vuelidate","id":"CVE-2021-3794"},"products":["sindresorhus/semver-regex"],"published":"2021-09-15","related":[{"cvss_score":5.9,"headline":"Exponential ReDoS in semver-regex","id":"CVE-2021-43307","kev_date_added":null,"published":"2022-06-01"}],"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":["sindresorhus"]},"summary":"Attackers can cause denial of service in applications using semver-regex by triggering inefficient regular expression complexity.","url":"https://insights.sbomify.com/CVE-2021-3795/"}