{"answers":{"affected":"3 open source packages ship an affected version, including cleo. It affects 1 product.","exploited":"It is not confirmed as exploited in the wild, but public exploit code for CVE-2022-42966 exists.","fix":"Upgrade cleo to 2.0.0 or later.","what":"CVE-2022-42966 is a medium-severity denial of service vulnerability in cleo, published on 9 Nov 2022. An attacker can exploit it over the internet without logging in, with no action from the victim."},"fix_prompt":"Check this codebase for CVE-2022-42966 and fix it if it is affected.\n\nWhat it is: CVE-2022-42966 is a medium-severity denial of service vulnerability in cleo, published on 9 Nov 2022. An attacker can exploit it over the internet without logging in, with no action from the victim.\nExploitation: It is not confirmed as exploited in the wild, but public exploit code for CVE-2022-42966 exists.\n\nAffected packages and fixed versions:\n- cleo (PyPI): affected all versions; fixed in 2.0.0\n- cleo (PyPI): affected from 1.0.0a1; fixed in 2.0.0\n- cleo (PyPI): affected from 1.0.0a1; fixed in 2.0.0\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-2022-42966/ (Markdown: https://insights.sbomify.com/CVE-2022-42966/index.md)","id":"CVE-2022-42966","markdown":"https://insights.sbomify.com/CVE-2022-42966/index.md","name":"CVE-2022-42966","record":{"aliases":["GHSA-2p9h-ccw7-33gf","PYSEC-2022-43178","UBUNTU-CVE-2022-42966"],"analysis":{"component_type":"library","fix_type":"upgrade","impacts":["denial_of_service"],"network_reachable":"yes","non_default_config":false,"product_category":"Python CLI library","requires_auth":"none","summary":"An attacker can cause a denial of service in the cleo Python library by supplying malicious input to the Table.set_rows method, triggering exponential regex backtracking.","user_interaction":"not_required","vuln_class":"denial_of_service"},"analysis_generated_by":"qwen3.8-flash-next","assigner":"JFROG","cpe":[{"product":"cleo","vendor":"python-poetry"}],"cvss":{"score":5.9,"severity":"medium","source":"cna","vector":"CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:H","version":"3.1"},"cwes":[{"id":"CWE-1333","name":"Inefficient Regular Expression Complexity"}],"description":"An exponential ReDoS (Regular Expression Denial of Service) can be triggered in the cleo PyPI package, when an attacker is able to supply arbitrary input to the Table.set_rows method","ecosystems":["PyPI"],"exploits":{"exploitdb":0,"first_seen":null,"github_poc":0,"max_poc_stars":null,"metasploit":0,"nuclei":0,"refs":[],"tier":"weaponised"},"has_fix":true,"headline":"Exponential ReDoS in cleo leads to denial of service","id":"CVE-2022-42966","indexable":true,"kev":null,"kind":"cve","links":{"ecosystem":"PyPI","product":null,"products":[],"type":"denial_of_service","year":"2022"},"n_packages":3,"n_references":1,"next":{"headline":"XSS in Caret markdown editor leads to remote code execution when viewing crafted Markdown files","id":"CVE-2022-42967"},"packages":[{"ecosystem":"PyPI","fixed":["2.0.0"],"introduced":["0"],"last_affected":[],"package":"cleo","purl":"pkg:pypi/cleo","source":"PYSEC-2022-43178"},{"ecosystem":"PyPI","fixed":["2.0.0"],"introduced":["1.0.0a1"],"last_affected":[],"package":"cleo","purl":null,"source":"GHSA-2p9h-ccw7-33gf"},{"ecosystem":"PyPI","fixed":["2.0.0"],"introduced":["1.0.0a1"],"last_affected":[],"package":"cleo","purl":"pkg:pypi/cleo","source":"GHSA-2p9h-ccw7-33gf"}],"prev":{"headline":"Exponential ReDoS in snowflake-connector-python leads to denial of service","id":"CVE-2022-42965"},"products":["cleo"],"published":"2022-11-09","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":"CC BY 4.0","name":"PyPA Advisory Database","prefix":"PYSEC"},{"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":"no","exploitation":"poc","technical_impact":"partial"},"state":"PUBLISHED","updated":"2025-05-01","vendors":["cleo"]},"summary":"An attacker can cause a denial of service in the cleo Python library by supplying malicious input to the Table.set_rows method, triggering exponential regex backtracking.","url":"https://insights.sbomify.com/CVE-2022-42966/"}