{"answers":{"affected":"2 open source packages ship an affected version, including org.apache.kylin:kylin. It affects 1 product.","exploited":"There is no known exploitation of CVE-2021-27738 in the wild and no public exploit code.","fix":"Upgrade org.apache.kylin:kylin to 3.1.3 or later.","what":"CVE-2021-27738 is a high-severity missing authorization vulnerability in Apache Kylin, published on 6 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-2021-27738 and fix it if it is affected.\n\nWhat it is: CVE-2021-27738 is a high-severity missing authorization vulnerability in Apache Kylin, published on 6 Jan 2022. 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-2021-27738 in the wild and no public exploit code.\n\nAffected packages and fixed versions:\n- org.apache.kylin:kylin (Maven): affected all versions; fixed in 3.1.3\n- org.apache.kylin:kylin (Maven): affected all versions; fixed in 3.1.3\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-2021-27738/ (Markdown: https://insights.sbomify.com/CVE-2021-27738/index.md)","id":"CVE-2021-27738","markdown":"https://insights.sbomify.com/CVE-2021-27738/index.md","name":"CVE-2021-27738","record":{"aliases":["GHSA-wrx7-qgmj-mf2q"],"analysis":{"component_type":"server_software","fix_type":"upgrade","impacts":["data_modify","security_bypass"],"network_reachable":"yes","non_default_config":false,"product_category":"Apache Kylin","requires_auth":"none","summary":"Unauthenticated attackers can access streaming coordinator endpoints to modify cube assignments and replica sets, potentially enabling limited SSRF.","user_interaction":"not_required","vuln_class":"missing_authorization"},"analysis_generated_by":"qwen3.8-flash-next","assigner":"apache","cpe":[{"product":"kylin","vendor":"apache"}],"cvss":{"score":7.5,"severity":"high","source":"nvd","vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N","version":"3.1"},"cwes":[{"id":"CWE-918","name":"Server-Side Request Forgery"}],"description":"All request mappings in `StreamingCoordinatorController.java` handling `/kylin/api/streaming_coordinator/*` REST API endpoints did not include any security checks, which allowed an unauthenticated user to issue arbitrary requests, such as assigning/unassigning of streaming cubes, creation/modification and deletion of replica sets, to the Kylin Coordinator. For endpoints accepting node details in HTTP message body, unauthenticated (but limited) server-side request forgery (SSRF) can be achieved. This issue affects Apache Kylin Apache Kylin 3 versions prior to 3.1.2.","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 Access Control to Streaming Coordinator \u0026 SSRF","id":"CVE-2021-27738","indexable":true,"kev":null,"kind":"cve","links":{"ecosystem":"Maven","product":null,"products":[],"type":"missing_authorization","year":"2021"},"n_packages":2,"n_references":2,"next":{"headline":"XML external entity in Commerce","id":"CVE-2021-27741"},"packages":[{"ecosystem":"Maven","fixed":["3.1.3"],"introduced":["0"],"last_affected":[],"package":"org.apache.kylin:kylin","purl":null,"source":"GHSA-wrx7-qgmj-mf2q"},{"ecosystem":"Maven","fixed":["3.1.3"],"introduced":["0"],"last_affected":[],"package":"org.apache.kylin:kylin","purl":"pkg:maven/org.apache.kylin/kylin","source":"GHSA-wrx7-qgmj-mf2q"}],"prev":{"headline":"Denial of service in Apache Traffic Server","id":"CVE-2021-27737"},"products":["Apache Kylin"],"published":"2022-01-06","related":[{"cvss_score":8.8,"headline":"Apache Kylin OS Command Injection","id":"CVE-2020-1956","kev_date_added":"2022-03-25","published":"2020-05-22"},{"cvss_score":9.8,"headline":"Apache Kylin: SQL Injection Vulnerability in Catalog Cache Refresh API","id":"CVE-2026-62390","kev_date_added":null,"published":"2026-07-14"},{"cvss_score":9.8,"headline":"Apache Kylin: Command injection by Diagnosis Controller","id":"CVE-2022-44621","kev_date_added":null,"published":"2022-12-30"},{"cvss_score":9.8,"headline":"Apache Kylin vulnerable to remote code execution","id":"CVE-2022-24697","kev_date_added":null,"published":"2022-10-13"},{"cvss_score":9.8,"headline":"Apache Kylin unsafe class loading","id":"CVE-2021-31522","kev_date_added":null,"published":"2022-01-06"},{"cvss_score":9.8,"headline":"Command injection","id":"CVE-2021-45456","kev_date_added":null,"published":"2022-01-06"},{"cvss_score":9.8,"headline":"Command Injection in Kylin","id":"CVE-2020-13925","kev_date_added":null,"published":"2020-07-14"}],"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)"}],"ssvc":{"automatable":null,"exploitation":null,"technical_impact":null},"state":"PUBLISHED","updated":"2024-08-03","vendors":["Apache Software Foundation"]},"summary":"Unauthenticated attackers can access streaming coordinator endpoints to modify cube assignments and replica sets, potentially enabling limited SSRF.","url":"https://insights.sbomify.com/CVE-2021-27738/"}