{"answers":{"affected":"4 open source packages ship an affected version, including org.jenkins-ci.main:jenkins-core. It affects 1 product.","exploited":"There is no known exploitation of CVE-2018-1999043 in the wild and no public exploit code.","fix":"Upgrade org.jenkins-ci.main:jenkins-core to a fixed version for your release line: 2.121.3 or 2.138.","what":"CVE-2018-1999043 is a high-severity denial of service vulnerability in Jenkins Jenkins, published on 23 Aug 2018. An attacker can exploit it over the internet without logging in, with no action from the victim."},"fix_prompt":"Check this codebase for CVE-2018-1999043 and fix it if it is affected.\n\nWhat it is: CVE-2018-1999043 is a high-severity denial of service vulnerability in Jenkins Jenkins, published on 23 Aug 2018. 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-2018-1999043 in the wild and no public exploit code.\n\nAffected packages and fixed versions:\n- org.jenkins-ci.main:jenkins-core (Maven): affected all versions; fixed in 2.121.3\n- org.jenkins-ci.main:jenkins-core (Maven): affected all versions; fixed in 2.121.3\n- org.jenkins-ci.main:jenkins-core (Maven): affected from 2.122; fixed in 2.138\n- org.jenkins-ci.main:jenkins-core (Maven): affected from 2.122; fixed in 2.138\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-2018-1999043/ (Markdown: https://insights.sbomify.com/CVE-2018-1999043/index.md)","id":"CVE-2018-1999043","markdown":"https://insights.sbomify.com/CVE-2018-1999043/index.md","name":"CVE-2018-1999043","record":{"aliases":["GHSA-2632-h32j-6rg9"],"analysis":{"component_type":"server_software","fix_type":"upgrade","impacts":["denial_of_service"],"network_reachable":"yes","non_default_config":false,"product_category":"Jenkins automation server","requires_auth":"none","summary":"Attackers can cause denial of service in Jenkins by creating ephemeral in-memory user records through repeated invalid login attempts.","user_interaction":"not_required","vuln_class":"denial_of_service"},"analysis_generated_by":"qwen3.8-flash-next","assigner":"mitre","cpe":[{"product":"jenkins","vendor":"jenkins"}],"cvss":{"score":7.5,"severity":"high","source":"nvd","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-772","name":"Missing Release of Resource after Effective Lifetime"}],"description":"A denial of service vulnerability exists in Jenkins 2.137 and earlier, 2.121.2 and earlier in BasicAuthenticationFilter.java, BasicHeaderApiTokenAuthenticator.java that allows attackers to create ephemeral in-memory user records by attempting to log in using invalid credentials.","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":"Missing Release of Resource after Effective Lifetime in Jenkins","id":"CVE-2018-1999043","indexable":true,"kev":null,"kind":"cve","links":{"ecosystem":"Maven","product":"jenkins:jenkins","products":["jenkins:jenkins"],"type":"denial_of_service","year":"2018"},"n_packages":4,"n_references":1,"next":{"headline":"Infinite Loop in Jenkins Core","id":"CVE-2018-1999044"},"packages":[{"ecosystem":"Maven","fixed":["2.121.3"],"introduced":["0"],"last_affected":[],"package":"org.jenkins-ci.main:jenkins-core","purl":null,"source":"GHSA-2632-h32j-6rg9"},{"ecosystem":"Maven","fixed":["2.121.3"],"introduced":["0"],"last_affected":[],"package":"org.jenkins-ci.main:jenkins-core","purl":"pkg:maven/org.jenkins-ci.main/jenkins-core","source":"GHSA-2632-h32j-6rg9"},{"ecosystem":"Maven","fixed":["2.138"],"introduced":["2.122"],"last_affected":[],"package":"org.jenkins-ci.main:jenkins-core","purl":null,"source":"GHSA-2632-h32j-6rg9"},{"ecosystem":"Maven","fixed":["2.138"],"introduced":["2.122"],"last_affected":[],"package":"org.jenkins-ci.main:jenkins-core","purl":"pkg:maven/org.jenkins-ci.main/jenkins-core","source":"GHSA-2632-h32j-6rg9"}],"prev":{"headline":"Deserialization of Untrusted Data in Jenkins","id":"CVE-2018-1999042"},"products":["n/a"],"published":"2018-08-23","related":[{"cvss_score":9.8,"headline":"Jenkins Command Line Interface (CLI) Path Traversal","id":"CVE-2024-23897","kev_date_added":"2024-08-19","published":"2024-01-24"},{"cvss_score":9.8,"headline":"Jenkins Stapler Web Framework Deserialization of Untrusted Data","id":"CVE-2018-1000861","kev_date_added":"2022-02-10","published":"2018-12-10"},{"cvss_score":9.8,"headline":"Jenkins Remote Code Execution","id":"CVE-2017-1000353","kev_date_added":"2025-10-02","published":"2018-01-29"},{"cvss_score":7.5,"headline":"Jenkins User Interface (UI) Information Disclosure","id":"CVE-2015-5317","kev_date_added":"2023-05-12","published":"2015-11-25"},{"cvss_score":9.8,"headline":"Multiple vulnerabilities allow bypassing path filtering of agent-to-controller access control in Jenkins","id":"CVE-2021-21690","kev_date_added":null,"published":"2021-11-04"},{"cvss_score":9.8,"headline":"Multiple vulnerabilities allow bypassing path filtering of agent-to-controller access control in Jenkins","id":"CVE-2021-21691","kev_date_added":null,"published":"2021-11-04"},{"cvss_score":9.8,"headline":"Multiple vulnerabilities allow bypassing path filtering of agent-to-controller access control in Jenkins","id":"CVE-2021-21692","kev_date_added":null,"published":"2021-11-04"}],"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":"2024-09-16","vendors":["n/a"]},"summary":"Attackers can cause denial of service in Jenkins by creating ephemeral in-memory user records through repeated invalid login attempts.","url":"https://insights.sbomify.com/CVE-2018-1999043/"}