{"answers":{"affected":"It affects 1 product.","exploited":"There is no known exploitation of CVE-2026-2043 in the wild and no public exploit code.","fix":"No fix has been published for CVE-2026-2043 yet. Limit exposure of the affected software until one is available.","what":"CVE-2026-2043 is a high-severity command injection vulnerability in Nagios Nagios Xi, published on 20 Feb 2026. An attacker needs administrator access to exploit it, with no action from the victim."},"fix_prompt":"Check this codebase for CVE-2026-2043 and fix it if it is affected.\n\nWhat it is: CVE-2026-2043 is a high-severity command injection vulnerability in Nagios Nagios Xi, published on 20 Feb 2026. An attacker needs administrator access to exploit it, with no action from the victim.\nExploitation: There is no known exploitation of CVE-2026-2043 in the wild and no public exploit code.\n\nAffected product: Nagios Nagios Xi. No package-level version data is available, so check the vendor advisory linked from the reference page.\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-2026-2043/ (Markdown: https://insights.sbomify.com/CVE-2026-2043/index.md)","id":"CVE-2026-2043","markdown":"https://insights.sbomify.com/CVE-2026-2043/index.md","name":"CVE-2026-2043","record":{"aliases":["GHSA-q77w-wghg-55fv"],"analysis":{"component_type":"server_software","fix_type":"patch","impacts":["code_execution"],"network_reachable":"yes","non_default_config":false,"product_category":"Nagios Host monitoring","requires_auth":"high_privilege","summary":"Authenticated attackers can execute arbitrary code on Nagios Host via command injection in the esensors_websensor_configwizard_func method.","user_interaction":"not_required","vuln_class":"command_injection"},"analysis_generated_by":"qwen3.8-flash-next","assigner":"zdi","cpe":[{"product":"nagios_xi","vendor":"nagios"}],"cvss":{"score":7.2,"severity":"high","source":"cna","vector":"CVSS:3.0/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H","version":"3.0"},"cwes":[{"id":"CWE-78","name":"Improper Neutralization of Special Elements used in an OS Command"}],"description":"Nagios Host esensors_websensor_configwizard_func Command Injection Remote Code Execution Vulnerability. This vulnerability allows remote attackers to execute arbitrary code on affected installations of Nagios Host. Authentication is required to exploit this vulnerability.\n\nThe specific flaw exists within the esensors_websensor_configwizard_func method. The issue results from the lack of proper validation of a user-supplied string before using it to execute a system call. An attacker can leverage this vulnerability to execute code in the context of the service account. Was ZDI-CAN-28249.","ecosystems":[],"exploits":{"exploitdb":0,"first_seen":null,"github_poc":0,"max_poc_stars":null,"metasploit":0,"nuclei":0,"refs":[],"tier":"none_known"},"has_fix":null,"headline":"Nagios Host esensors_websensor_configwizard_func Command Injection Remote Code Execution Vulnerability","id":"CVE-2026-2043","indexable":true,"kev":null,"kind":"cve","links":{"ecosystem":null,"product":"nagios:nagios_xi","products":["nagios:nagios_xi"],"type":"command_injection","year":"2026"},"n_packages":0,"n_references":2,"next":{"headline":"GIMP PGM File Parsing Uninitialized Memory Remote Code Execution Vulnerability","id":"CVE-2026-2044"},"packages":[],"prev":{"headline":"Nagios Host monitoringwizard Command Injection Remote Code Execution Vulnerability","id":"CVE-2026-2042"},"products":["Host"],"published":"2026-02-20","related":[{"cvss_score":8.8,"headline":"Nagios XI OS Command Injection","id":"CVE-2021-25296","kev_date_added":"2022-01-18","published":"2021-02-15"},{"cvss_score":8.8,"headline":"Nagios XI OS Command Injection","id":"CVE-2021-25297","kev_date_added":"2022-01-18","published":"2021-02-15"},{"cvss_score":8.8,"headline":"Nagios XI OS Command Injection","id":"CVE-2021-25298","kev_date_added":"2022-01-18","published":"2021-02-15"},{"cvss_score":8.8,"headline":"Nagios XI Remote Code Execution","id":"CVE-2019-15949","kev_date_added":"2021-11-03","published":"2019-09-05"},{"cvss_score":9.8,"headline":"SQL injection in n/a","id":"CVE-2024-24401","kev_date_added":null,"published":"2024-02-26"},{"cvss_score":9.8,"headline":"Privilege escalation in n/a","id":"CVE-2024-24402","kev_date_added":null,"published":"2024-02-26"},{"cvss_score":9.8,"headline":"SQL injection in n/a","id":"CVE-2023-48084","kev_date_added":null,"published":"2023-12-14"}],"sources":[{"class":"attribution","licence":"CVE Terms of Use (MITRE)","name":"CVE List","prefix":"CVE"},{"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":"none","technical_impact":"total"},"state":"PUBLISHED","updated":"2026-02-26","vendors":["Nagios"]},"summary":"Authenticated attackers can execute arbitrary code on Nagios Host via command injection in the esensors_websensor_configwizard_func method.","url":"https://insights.sbomify.com/CVE-2026-2043/"}