{"answers":{"affected":"2 open source packages ship an affected version, including tech.kwik:kwik.","exploited":"There is no known exploitation of CVE-2025-23020 in the wild and no public exploit code.","fix":"Upgrade tech.kwik:kwik to 0.10.1 or later.","what":"CVE-2025-23020 is a medium-severity denial of service vulnerability in ptrd Kwik, published on 20 Feb 2025. An attacker can exploit it over the internet without logging in, with no action from the victim."},"fix_prompt":"Check this codebase for CVE-2025-23020 and fix it if it is affected.\n\nWhat it is: CVE-2025-23020 is a medium-severity denial of service vulnerability in ptrd Kwik, published on 20 Feb 2025. 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-2025-23020 in the wild and no public exploit code.\n\nAffected packages and fixed versions:\n- tech.kwik:kwik (Maven): affected all versions; fixed in 0.10.1\n- tech.kwik:kwik (Maven): affected all versions; fixed in 0.10.1\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-2025-23020/ (Markdown: https://insights.sbomify.com/CVE-2025-23020/index.md)","id":"CVE-2025-23020","markdown":"https://insights.sbomify.com/CVE-2025-23020/index.md","name":"CVE-2025-23020","record":{"aliases":["GHSA-9f57-9rhg-4hvm"],"analysis":{"component_type":"library","fix_type":"upgrade","impacts":["denial_of_service"],"network_reachable":"yes","non_default_config":false,"product_category":"Kwik Java library","requires_auth":"none","summary":"Remote attackers can cause excessive CPU load on servers using the Kwik library by exploiting a hash collision vulnerability in connection management.","user_interaction":"not_required","vuln_class":"denial_of_service"},"analysis_generated_by":"qwen3.8-flash-next","assigner":"mitre","cpe":[],"cvss":{"score":5.3,"severity":"medium","source":"cna","vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L","version":"3.1"},"cwes":[{"id":"CWE-407","name":"Inefficient Algorithmic Complexity"}],"description":"An issue was discovered in Kwik before 0.10.1. A hash collision vulnerability (in the hash table used to manage connections) allows remote attackers to cause a considerable CPU load on the server (a Hash DoS attack) by initiating connections with colliding Source Connection IDs (SCIDs).","ecosystems":["Maven"],"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":"Kwik hash collision vulnerability","id":"CVE-2025-23020","indexable":true,"kev":null,"kind":"cve","links":{"ecosystem":"Maven","product":null,"products":[],"type":"denial_of_service","year":"2025"},"n_packages":2,"n_references":2,"next":{"headline":"Integer overflow in FreeType","id":"CVE-2025-23022"},"packages":[{"ecosystem":"Maven","fixed":["0.10.1"],"introduced":["0"],"last_affected":[],"package":"tech.kwik:kwik","purl":null,"source":"GHSA-9f57-9rhg-4hvm"},{"ecosystem":"Maven","fixed":["0.10.1"],"introduced":["0"],"last_affected":[],"package":"tech.kwik:kwik","purl":"pkg:maven/tech.kwik/kwik","source":"GHSA-9f57-9rhg-4hvm"}],"prev":{"headline":"Other in IPv6","id":"CVE-2025-23019"},"products":["Kwik"],"published":"2025-02-20","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":"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":"2025-02-20","vendors":["ptrd"]},"summary":"Remote attackers can cause excessive CPU load on servers using the Kwik library by exploiting a hash collision vulnerability in connection management.","url":"https://insights.sbomify.com/CVE-2025-23020/"}