{"answers":{"affected":"3 open source packages ship an affected version, including pymatgen. It affects 1 product.","exploited":"It is not confirmed as exploited in the wild, but public exploit code for CVE-2022-42964 exists.","fix":"Upgrade pymatgen to 2025.10.7 or later.","what":"CVE-2022-42964 is a medium-severity denial of service vulnerability in pymatgen, 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-2022-42964 and fix it if it is affected.\n\nWhat it is: CVE-2022-42964 is a medium-severity denial of service vulnerability in pymatgen, 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-2022-42964 exists.\n\nAffected packages and fixed versions:\n- pymatgen (PyPI): affected all versions up to 2022.9.21; no fix listed\n- pymatgen (PyPI): affected all versions up to 2022.9.21; no fix listed\n- pymatgen (PyPI): affected all versions; fixed in 2025.10.7\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-2022-42964/ (Markdown: https://insights.sbomify.com/CVE-2022-42964/index.md)","id":"CVE-2022-42964","markdown":"https://insights.sbomify.com/CVE-2022-42964/index.md","name":"CVE-2022-42964","record":{"aliases":["DEBIAN-CVE-2022-42964","GHSA-5jqp-885w-xj32","PYSEC-2026-909","UBUNTU-CVE-2022-42964"],"analysis":{"component_type":"library","fix_type":"upgrade","impacts":["denial_of_service"],"network_reachable":"yes","non_default_config":false,"product_category":"Python materials science library","requires_auth":"none","summary":"An attacker can cause denial of service in pymatgen by supplying malicious input to the GaussianInput.from_string 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":"pymatgen","vendor":"materialsvirtuallab"}],"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 pymatgen PyPI package, when an attacker is able to supply arbitrary input to the GaussianInput.from_string 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 pymatgen leads to denial of service","id":"CVE-2022-42964","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":"Exponential ReDoS in snowflake-connector-python leads to denial of service","id":"CVE-2022-42965"},"packages":[{"ecosystem":"PyPI","fixed":[],"introduced":["0"],"last_affected":["2022.9.21"],"package":"pymatgen","purl":null,"source":"GHSA-5jqp-885w-xj32"},{"ecosystem":"PyPI","fixed":[],"introduced":["0"],"last_affected":["2022.9.21"],"package":"pymatgen","purl":"pkg:pypi/pymatgen","source":"GHSA-5jqp-885w-xj32"},{"ecosystem":"PyPI","fixed":["2025.10.7"],"introduced":["0"],"last_affected":[],"package":"pymatgen","purl":"pkg:pypi/pymatgen","source":"PYSEC-2026-909"}],"prev":{"headline":"Information disclosure in n/a","id":"CVE-2022-42961"},"products":["pymatgen"],"published":"2022-11-09","related":[{"cvss_score":9.4,"headline":"pymatgen arbitrary code execution when parsing a maliciously crafted JonesFaithfulTransformation transformation_string","id":"CVE-2024-23346","kev_date_added":null,"published":"2024-02-21"}],"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":["pymatgen"]},"summary":"An attacker can cause denial of service in pymatgen by supplying malicious input to the GaussianInput.from_string method, triggering exponential regex backtracking.","url":"https://insights.sbomify.com/CVE-2022-42964/"}