{"answers":{"affected":"8 open source packages ship an affected version, including ansi-regex. It affects 2 products.","exploited":"There is no known exploitation of CVE-2021-3807 in the wild and no public exploit code.","fix":"Upgrade ansi-regex to a fixed version for your release line: 3.0.1, 4.1.1, 5.0.1 or 6.0.1.","what":"CVE-2021-3807 is a high-severity denial of service vulnerability in Oracle Communications Cloud Native Core Policy, published on 17 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-2021-3807 and fix it if it is affected.\n\nWhat it is: CVE-2021-3807 is a high-severity denial of service vulnerability in Oracle Communications Cloud Native Core Policy, published on 17 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-2021-3807 in the wild and no public exploit code.\n\nAffected packages and fixed versions:\n- ansi-regex (npm): affected from 3.0.0; fixed in 3.0.1\n- ansi-regex (npm): affected from 3.0.0; fixed in 3.0.1\n- ansi-regex (npm): affected from 4.0.0; fixed in 4.1.1\n- ansi-regex (npm): affected from 4.0.0; fixed in 4.1.1\n- ansi-regex (npm): affected from 5.0.0; fixed in 5.0.1\n- ansi-regex (npm): affected from 5.0.0; fixed in 5.0.1\n- ansi-regex (npm): affected from 6.0.0; fixed in 6.0.1\n- ansi-regex (npm): affected from 6.0.0; fixed in 6.0.1\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-2021-3807/ (Markdown: https://insights.sbomify.com/CVE-2021-3807/index.md)","id":"CVE-2021-3807","markdown":"https://insights.sbomify.com/CVE-2021-3807/index.md","name":"CVE-2021-3807","record":{"aliases":["CLSA-2026-1782089817","DEBIAN-CVE-2021-3807","GHSA-93q8-gq69-wqmw","MINI-8hxm-8fpc-x8c9","ROOT-APP-NPM-CVE-2021-3807","UBUNTU-CVE-2021-3807"],"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":"An attacker can cause a denial of service by triggering inefficient regular expression complexity in the ansi-regex library.","user_interaction":"not_required","vuln_class":"denial_of_service"},"analysis_generated_by":"qwen3.8-flash-next","assigner":"@huntrdev","cpe":[{"product":"ansi-regex","vendor":"ansi-regex_project"},{"product":"communications_cloud_native_core_policy","vendor":"oracle"}],"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":"ansi-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 chalk/ansi-regex","id":"CVE-2021-3807","indexable":true,"kev":null,"kind":"cve","links":{"ecosystem":"npm","product":"oracle:communications_cloud_native_core_policy","products":["oracle:communications_cloud_native_core_policy"],"type":"denial_of_service","year":"2021"},"n_packages":8,"n_references":4,"next":{"headline":"Privilege escalation in HP PC BIOS","id":"CVE-2021-3808"},"packages":[{"ecosystem":"npm","fixed":["3.0.1"],"introduced":["3.0.0"],"last_affected":[],"package":"ansi-regex","purl":null,"source":"GHSA-93q8-gq69-wqmw"},{"ecosystem":"npm","fixed":["3.0.1"],"introduced":["3.0.0"],"last_affected":[],"package":"ansi-regex","purl":"pkg:npm/ansi-regex","source":"GHSA-93q8-gq69-wqmw"},{"ecosystem":"npm","fixed":["4.1.1"],"introduced":["4.0.0"],"last_affected":[],"package":"ansi-regex","purl":null,"source":"GHSA-93q8-gq69-wqmw"},{"ecosystem":"npm","fixed":["4.1.1"],"introduced":["4.0.0"],"last_affected":[],"package":"ansi-regex","purl":"pkg:npm/ansi-regex","source":"GHSA-93q8-gq69-wqmw"},{"ecosystem":"npm","fixed":["5.0.1"],"introduced":["5.0.0"],"last_affected":[],"package":"ansi-regex","purl":null,"source":"GHSA-93q8-gq69-wqmw"},{"ecosystem":"npm","fixed":["5.0.1"],"introduced":["5.0.0"],"last_affected":[],"package":"ansi-regex","purl":"pkg:npm/ansi-regex","source":"GHSA-93q8-gq69-wqmw"},{"ecosystem":"npm","fixed":["6.0.1"],"introduced":["6.0.0"],"last_affected":[],"package":"ansi-regex","purl":null,"source":"GHSA-93q8-gq69-wqmw"},{"ecosystem":"npm","fixed":["6.0.1"],"introduced":["6.0.0"],"last_affected":[],"package":"ansi-regex","purl":"pkg:npm/ansi-regex","source":"GHSA-93q8-gq69-wqmw"}],"prev":{"headline":"Path Traversal in Pardus Software Center","id":"CVE-2021-3806"},"products":["chalk/ansi-regex"],"published":"2021-09-17","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":"yes","exploitation":"none","technical_impact":"partial"},"state":"PUBLISHED","updated":"2026-10-08","vendors":["chalk"]},"summary":"An attacker can cause a denial of service by triggering inefficient regular expression complexity in the ansi-regex library.","url":"https://insights.sbomify.com/CVE-2021-3807/"}