{"answers":{"affected":"It affects 1 product.","exploited":"There is no known exploitation of CVE-2026-56021 in the wild and no public exploit code.","fix":"No fix has been published for CVE-2026-56021 yet. Limit exposure of the affected software until one is available.","what":"CVE-2026-56021 is a medium-severity vulnerability in Webmin Webmin, published on 18 Jun 2026. An attacker can exploit it over the internet without logging in, with no action from the victim."},"fix_prompt":"Check this codebase for CVE-2026-56021 and fix it if it is affected.\n\nWhat it is: CVE-2026-56021 is a medium-severity vulnerability in Webmin Webmin, published on 18 Jun 2026. 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-2026-56021 in the wild and no public exploit code.\n\nAffected product: Webmin Webmin. 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-2026-56021/ (Markdown: https://insights.sbomify.com/CVE-2026-56021/index.md)","id":"CVE-2026-56021","markdown":"https://insights.sbomify.com/CVE-2026-56021/index.md","name":"CVE-2026-56021","record":{"aliases":["GHSA-xpvh-gv3p-w5qx"],"analysis":{"component_type":"server_software","fix_type":"patch","impacts":["data_read"],"network_reachable":"yes","non_default_config":false,"product_category":"Webmin server","requires_auth":"none","summary":"Unauthenticated attackers can read configuration files in Webmin due to a bypassable regex pattern, exposing sensitive system settings.","user_interaction":"not_required","vuln_class":"information_disclosure"},"analysis_generated_by":"qwen3.8-flash-next","assigner":"cisa-cg","cpe":[{"product":"webmin","vendor":"webmin"}],"cvss":{"score":6.9,"severity":"medium","source":"cna","vector":"CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:L/VI:N/VA:N/SC:N/SI:N/SA:N","version":"4.0"},"cwes":[{"id":"CWE-777","name":"Regular Expression without Anchors"},{"id":"CWE-185","name":"Incorrect Regular Expression"}],"description":"Webmin allows unauthenticated attackers to read the contents of any file ending in .conf within module directories, due to a bypassable regex pattern.","ecosystems":[],"exploits":{"exploitdb":0,"first_seen":null,"github_poc":0,"max_poc_stars":null,"metasploit":0,"nuclei":0,"refs":[],"tier":"none_known"},"has_fix":false,"headline":"Webmin information disclosure via regex pattern","id":"CVE-2026-56021","indexable":true,"kev":null,"kind":"cve","links":{"ecosystem":null,"product":"webmin:webmin","products":["webmin:webmin"],"type":"information_disclosure","year":"2026"},"n_packages":0,"n_references":4,"next":{"headline":"Webmin MFA bypass","id":"CVE-2026-56022"},"packages":[],"prev":{"headline":"Webmin HTTP header authentication bypass","id":"CVE-2026-56020"},"products":["Webmin"],"published":"2026-06-18","related":[{"cvss_score":9.8,"headline":"Webmin Command Injection","id":"CVE-2019-15107","kev_date_added":"2022-03-25","published":"2019-08-16"},{"cvss_score":10,"headline":"Command injection in n/a","id":"CVE-2002-2201","kev_date_added":null,"published":"2005-11-16"},{"cvss_score":10,"headline":"Path traversal in n/a","id":"CVE-2001-1196","kev_date_added":null,"published":"2002-03-15"},{"cvss_score":9.9,"headline":"Webmin CGI Command Injection Remote Code Execution Vulnerability","id":"CVE-2024-12828","kev_date_added":null,"published":"2024-12-30"},{"cvss_score":9.8,"headline":"Cross-site scripting in n/a","id":"CVE-2022-36446","kev_date_added":null,"published":"2022-07-25"},{"cvss_score":9.8,"headline":"Command injection in n/a","id":"CVE-2020-35769","kev_date_added":null,"published":"2020-12-29"},{"cvss_score":9.8,"headline":"Path traversal in n/a","id":"CVE-2018-8712","kev_date_added":null,"published":"2018-03-14"}],"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":"partial"},"state":"PUBLISHED","updated":"2026-06-24","vendors":["Webmin"]},"summary":"Unauthenticated attackers can read configuration files in Webmin due to a bypassable regex pattern, exposing sensitive system settings.","url":"https://insights.sbomify.com/CVE-2026-56021/"}