{"answers":{"affected":"It affects 1 product.","exploited":"There is no known exploitation of CVE-2018-10896 in the wild and no public exploit code.","fix":"Change a configuration setting.","what":"CVE-2018-10896 is a medium-severity vulnerability in Canonical cloud-init, published on 1 Aug 2018. It can only be exploited from the same machine or local network, and only if a user opens a file or follows a link."},"fix_prompt":"Check this codebase for CVE-2018-10896 and fix it if it is affected.\n\nWhat it is: CVE-2018-10896 is a medium-severity vulnerability in Canonical cloud-init, published on 1 Aug 2018. It can only be exploited from the same machine or local network, and only if a user opens a file or follows a link.\nExploitation: There is no known exploitation of CVE-2018-10896 in the wild and no public exploit code.\n\nAffected product: Canonical cloud-init. 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-2018-10896/ (Markdown: https://insights.sbomify.com/CVE-2018-10896/index.md)","id":"CVE-2018-10896","markdown":"https://insights.sbomify.com/CVE-2018-10896/index.md","name":"CVE-2018-10896","record":{"aliases":["GHSA-rwhw-r234-9p3m","RHSA-2020:3050","RHSA-2020:3644"],"analysis":{"component_type":"operating_system","fix_type":"configuration_change","impacts":["security_bypass"],"network_reachable":"adjacent_or_local","non_default_config":false,"product_category":"cloud-init configuration","requires_auth":"low_privilege","summary":"Default cloud-init settings disable SSH key deletion, allowing cloned instances to share keys and enabling man-in-the-middle attacks.","user_interaction":"required","vuln_class":"misconfiguration"},"analysis_generated_by":"qwen3.8-flash-next","assigner":"redhat","cpe":[{"product":"cloud-init","vendor":"canonical"}],"cvss":{"score":4.6,"severity":"medium","source":"cna","vector":"CVSS:3.0/AV:L/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:N","version":"3.0"},"cwes":[{"id":"CWE-321","name":"Use of Hard-coded Cryptographic Key"}],"description":"The default cloud-init configuration, in cloud-init 0.6.2 and newer, included \"ssh_deletekeys: 0\", disabling cloud-init's deletion of ssh host keys. In some environments, this could lead to instances created by cloning a golden master or template system, sharing ssh host keys, and being able to impersonate one another or conduct man-in-the-middle attacks.","ecosystems":["Red Hat:enterprise_linux:8::appstream","Red Hat:rhel_eus:8.2::appstream"],"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":"Misconfiguration in cloud-init","id":"CVE-2018-10896","indexable":true,"kev":null,"kind":"cve","links":{"ecosystem":null,"product":null,"products":[],"type":"misconfiguration","year":"2018"},"n_packages":2,"n_references":3,"next":{"headline":"Path traversal in yum-utils:","id":"CVE-2018-10897"},"packages":[{"ecosystem":"Red Hat:enterprise_linux:8::appstream","fixed":["0:19.4-1.el8.7"],"introduced":["0"],"last_affected":[],"package":"cloud-init","purl":"pkg:rpm/redhat/cloud-init","source":"RHSA-2020:3050"},{"ecosystem":"Red Hat:rhel_eus:8.2::appstream","fixed":["0:18.5-12.el8_2.3"],"introduced":["0"],"last_affected":[],"package":"cloud-init","purl":"pkg:rpm/redhat/cloud-init","source":"RHSA-2020:3644"}],"prev":{"headline":"Qutebrowser CSRF Vulnerability","id":"CVE-2018-10895"},"products":["cloud-init"],"published":"2018-08-01","related":[{"cvss_score":8.8,"headline":"Hardcoded credentials in cloud-init","id":"CVE-2024-6174","kev_date_added":null,"published":"2025-06-26"},{"cvss_score":8.8,"headline":"Privilege escalation in cloud-init","id":"CVE-2012-6639","kev_date_added":null,"published":"2019-11-25"},{"cvss_score":5.9,"headline":"Privilege escalation in cloud-init","id":"CVE-2024-11584","kev_date_added":null,"published":"2025-06-26"},{"cvss_score":5.5,"headline":"sensitive data exposure in cloud-init logs","id":"CVE-2023-1786","kev_date_added":null,"published":"2023-04-26"},{"cvss_score":5.5,"headline":"sensitive data exposure in cloud-init logs","id":"CVE-2021-3429","kev_date_added":null,"published":"2023-04-19"},{"cvss_score":5.5,"headline":"sensitive data exposure in cloud-init logs","id":"CVE-2022-2084","kev_date_added":null,"published":"2023-04-19"},{"cvss_score":5.5,"headline":"Weak cryptography in n/a","id":"CVE-2020-8631","kev_date_added":null,"published":"2020-02-05"}],"sources":[{"class":"attribution","licence":"CVE Terms of Use (MITRE)","name":"CVE List","prefix":"CVE"},{"class":"attribution","licence":"CC BY 4.0","name":"Red Hat","prefix":"RHSA"},{"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":"2024-08-05","vendors":["Canonical"]},"summary":"Default cloud-init settings disable SSH key deletion, allowing cloned instances to share keys and enabling man-in-the-middle attacks.","url":"https://insights.sbomify.com/CVE-2018-10896/"}