{"answers":{"affected":"4 open source packages ship an affected version, including org.jenkins-ci.main:jenkins-core. It affects 2 products.","exploited":"There is no known exploitation of CVE-2018-1999001 in the wild and no public exploit code.","fix":"Upgrade org.jenkins-ci.main:jenkins-core to a fixed version for your release line: 2.121.2 or 2.132.","what":"CVE-2018-1999001 is a high-severity authentication bypass vulnerability in Jenkins Jenkins, published on 23 Jul 2018. An attacker can exploit it over the internet without logging in, and only if a user opens a file or follows a link."},"fix_prompt":"Check this codebase for CVE-2018-1999001 and fix it if it is affected.\n\nWhat it is: CVE-2018-1999001 is a high-severity authentication bypass vulnerability in Jenkins Jenkins, published on 23 Jul 2018. An attacker can exploit it over the internet without logging in, and only if a user opens a file or follows a link.\nExploitation: There is no known exploitation of CVE-2018-1999001 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 2.121.2\n- org.jenkins-ci.main:jenkins-core (Maven): affected all versions; fixed in 2.121.2\n- org.jenkins-ci.main:jenkins-core (Maven): affected from 2.122; fixed in 2.132\n- org.jenkins-ci.main:jenkins-core (Maven): affected from 2.122; fixed in 2.132\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-2018-1999001/ (Markdown: https://insights.sbomify.com/CVE-2018-1999001/index.md)","id":"CVE-2018-1999001","markdown":"https://insights.sbomify.com/CVE-2018-1999001/index.md","name":"CVE-2018-1999001","record":{"aliases":["GHSA-j8qv-mj4r-6fw4"],"analysis":{"component_type":"server_software","fix_type":"upgrade","impacts":["privilege_escalation","security_bypass"],"network_reachable":"yes","non_default_config":false,"product_category":"Jenkins automation server","requires_auth":"none","summary":"Attackers can trigger a configuration file move to force Jenkins into legacy mode, granting anonymous administrator access.","user_interaction":"required","vuln_class":"auth_bypass"},"analysis_generated_by":"qwen3.8-flash-next","assigner":"mitre","cpe":[{"product":"jenkins","vendor":"jenkins"},{"product":"communications_cloud_native_core_automated_test_suite","vendor":"oracle"}],"cvss":{"score":8.8,"severity":"high","source":"nvd","vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H","version":"3.1"},"cwes":[],"description":"A unauthorized modification of configuration vulnerability exists in Jenkins 2.132 and earlier, 2.121.1 and earlier in User.java that allows attackers to provide crafted login credentials that cause Jenkins to move the config.xml file from the Jenkins home directory. If Jenkins is started without this file present, it will revert to the legacy defaults of granting administrator access to anonymous users.","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":"Improper Input Validation in Jenkins","id":"CVE-2018-1999001","indexable":true,"kev":null,"kind":"cve","links":{"ecosystem":"Maven","product":"jenkins:jenkins","products":["jenkins:jenkins","oracle:communications_cloud_native_core_automated_test_suite"],"type":"auth_bypass","year":"2018"},"n_packages":4,"n_references":2,"next":{"headline":"Improper Input Validation in Jenkins","id":"CVE-2018-1999002"},"packages":[{"ecosystem":"Maven","fixed":["2.121.2"],"introduced":["0"],"last_affected":[],"package":"org.jenkins-ci.main:jenkins-core","purl":null,"source":"GHSA-j8qv-mj4r-6fw4"},{"ecosystem":"Maven","fixed":["2.121.2"],"introduced":["0"],"last_affected":[],"package":"org.jenkins-ci.main:jenkins-core","purl":"pkg:maven/org.jenkins-ci.main/jenkins-core","source":"GHSA-j8qv-mj4r-6fw4"},{"ecosystem":"Maven","fixed":["2.132"],"introduced":["2.122"],"last_affected":[],"package":"org.jenkins-ci.main:jenkins-core","purl":null,"source":"GHSA-j8qv-mj4r-6fw4"},{"ecosystem":"Maven","fixed":["2.132"],"introduced":["2.122"],"last_affected":[],"package":"org.jenkins-ci.main:jenkins-core","purl":"pkg:maven/org.jenkins-ci.main/jenkins-core","source":"GHSA-j8qv-mj4r-6fw4"}],"prev":{"headline":"Path traversal in quazip","id":"CVE-2018-1002209"},"products":["n/a"],"published":"2018-07-23","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":"FIRST CVSS licence","name":"CVSS (FIRST)"}],"ssvc":{"automatable":null,"exploitation":null,"technical_impact":null},"state":"PUBLISHED","updated":"2024-08-05","vendors":["n/a"]},"summary":"Attackers can trigger a configuration file move to force Jenkins into legacy mode, granting anonymous administrator access.","url":"https://insights.sbomify.com/CVE-2018-1999001/"}