{"answers":{"affected":"2 open source packages ship an affected version, including com.h2database:h2. It affects 3 products.","exploited":"It is not confirmed as exploited in the wild, but public exploit code for CVE-2021-42392 exists.","fix":"Upgrade com.h2database:h2 to 2.0.206 or later.","what":"CVE-2021-42392 is a critical unsafe deserialization vulnerability in Debian Debian Linux, published on 7 Jan 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-2021-42392 and fix it if it is affected.\n\nWhat it is: CVE-2021-42392 is a critical unsafe deserialization vulnerability in Debian Debian Linux, published on 7 Jan 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-2021-42392 exists.\n\nAffected packages and fixed versions:\n- com.h2database:h2 (Maven): affected from 1.1.100; fixed in 2.0.206\n- com.h2database:h2 (Maven): affected from 1.1.100; fixed in 2.0.206\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-2021-42392/ (Markdown: https://insights.sbomify.com/CVE-2021-42392/index.md)","id":"CVE-2021-42392","markdown":"https://insights.sbomify.com/CVE-2021-42392/index.md","name":"CVE-2021-42392","record":{"aliases":["CLSA-2026-1787636864","DEBIAN-CVE-2021-42392","GHSA-h376-j262-vhq6","UBUNTU-CVE-2021-42392"],"analysis":{"component_type":"database","fix_type":"upgrade","impacts":["code_execution"],"network_reachable":"yes","non_default_config":false,"product_category":"H2 database","requires_auth":"none","summary":"Attackers can achieve remote code execution via JNDI injection in the H2 database console, requiring immediate patching.","user_interaction":"not_required","vuln_class":"deserialization"},"analysis_generated_by":"qwen3.8-flash-next","assigner":"JFROG","cpe":[{"product":"debian_linux","vendor":"debian"},{"product":"h2","vendor":"h2database"},{"product":"communications_cloud_native_core_policy","vendor":"oracle"}],"cvss":{"score":9.8,"severity":"critical","source":"nvd","vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H","version":"3.1"},"cwes":[{"id":"CWE-502","name":"Deserialization of Untrusted Data"}],"description":"The org.h2.util.JdbcUtils.getConnection method of the H2 database takes as parameters the class name of the driver and URL of the database. An attacker may pass a JNDI driver name and a URL leading to a LDAP or RMI servers, causing remote code execution. This can be exploited through various attack vectors, most notably through the H2 Console which leads to unauthenticated remote code execution.","ecosystems":["Maven"],"exploits":{"exploitdb":0,"first_seen":"2022-01-09","github_poc":2,"max_poc_stars":7,"metasploit":0,"nuclei":1,"refs":[{"date":"2022-01-09T16:23:16Z","kind":"github_poc","ref":"https://github.com/cybersecurityworks553/CVE-2021-42392-Detect","stars":7,"title":null},{"date":"2025-05-08T14:47:42Z","kind":"github_poc","ref":"https://github.com/Be-Innova/CVE-2021-42392-exploit-lab","stars":0,"title":null},{"date":null,"kind":"nuclei","ref":"http/cves/2021/CVE-2021-42392.yaml","stars":null,"title":"H2 Database Console - JNDI Injection RCE"}],"tier":"weaponised"},"has_fix":true,"headline":"RCE in H2 Console","id":"CVE-2021-42392","indexable":true,"kev":null,"kind":"cve","links":{"ecosystem":"Maven","product":"debian:debian_linux","products":["debian:debian_linux","oracle:communications_cloud_native_core_policy"],"type":"deserialization","year":"2021"},"n_packages":2,"n_references":7,"next":{"headline":"VTK NULL pointer dereference vulnerability","id":"CVE-2021-42521"},"packages":[{"ecosystem":"Maven","fixed":["2.0.206"],"introduced":["1.1.100"],"last_affected":[],"package":"com.h2database:h2","purl":null,"source":"GHSA-h376-j262-vhq6"},{"ecosystem":"Maven","fixed":["2.0.206"],"introduced":["1.1.100"],"last_affected":[],"package":"com.h2database:h2","purl":"pkg:maven/com.h2database/h2","source":"GHSA-h376-j262-vhq6"}],"prev":{"headline":"Denial of service in clickhouse","id":"CVE-2021-42391"},"products":["h2"],"published":"2022-01-07","related":[{"cvss_score":10,"headline":"ProFTPD Improper Access Control","id":"CVE-2015-3306","kev_date_added":"2026-10-08","published":"2015-05-18"},{"cvss_score":9.9,"headline":"RoundCube Webmail Deserialization of Untrusted Data","id":"CVE-2025-49113","kev_date_added":"2026-02-20","published":"2025-06-02"},{"cvss_score":9.8,"headline":"GNU InetUtils Argument Injection","id":"CVE-2026-24061","kev_date_added":"2026-01-26","published":"2026-01-21"},{"cvss_score":9.8,"headline":"Linux Kernel Improper Check for Unusual or Exceptional Conditions","id":"CVE-2025-39682","kev_date_added":"2026-09-18","published":"2025-09-05"},{"cvss_score":9.8,"headline":"Mozilla Firefox Use-After-Free","id":"CVE-2024-9680","kev_date_added":"2024-10-15","published":"2024-10-09"},{"cvss_score":9.8,"headline":"RARLAB UnRAR Directory Traversal","id":"CVE-2022-30333","kev_date_added":"2022-08-09","published":"2022-05-09"},{"cvss_score":9.8,"headline":"Roundcube Webmail SQL Injection","id":"CVE-2021-44026","kev_date_added":"2023-06-22","published":"2021-11-19"}],"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)"},{"class":"attribution","licence":"MIT","name":"Nuclei templates"},{"class":"open","licence":"CC0","name":"PoC-in-GitHub"}],"ssvc":{"automatable":null,"exploitation":null,"technical_impact":null},"state":"PUBLISHED","updated":"2024-08-04","vendors":["h2database"]},"summary":"Attackers can achieve remote code execution via JNDI injection in the H2 database console, requiring immediate patching.","url":"https://insights.sbomify.com/CVE-2021-42392/"}