{"answers":{"affected":"2 open source packages ship an affected version, including org.apache.polaris:polaris-runtime-service. It affects 1 product.","exploited":"There is no known exploitation of CVE-2026-42809 in the wild and no public exploit code.","fix":"Upgrade org.apache.polaris:polaris-runtime-service to 1.4.1 or later.","what":"CVE-2026-42809 is a critical missing authorization vulnerability in Apache Polaris, published on 4 May 2026. Any signed-in user can exploit it over the network, with no action from the victim."},"fix_prompt":"Check this codebase for CVE-2026-42809 and fix it if it is affected.\n\nWhat it is: CVE-2026-42809 is a critical missing authorization vulnerability in Apache Polaris, published on 4 May 2026. Any signed-in user can exploit it over the network, with no action from the victim.\nExploitation: There is no known exploitation of CVE-2026-42809 in the wild and no public exploit code.\n\nAffected packages and fixed versions:\n- org.apache.polaris:polaris-runtime-service (Maven): affected all versions; fixed in 1.4.1\n- org.apache.polaris:polaris-runtime-service (Maven): affected all versions; fixed in 1.4.1\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-2026-42809/ (Markdown: https://insights.sbomify.com/CVE-2026-42809/index.md)","id":"CVE-2026-42809","markdown":"https://insights.sbomify.com/CVE-2026-42809/index.md","name":"CVE-2026-42809","record":{"aliases":["GHSA-8ggj-j522-h5qf"],"analysis":{"component_type":"server_software","fix_type":"patch","impacts":["data_read","data_modify"],"network_reachable":"yes","non_default_config":false,"product_category":"Apache Polaris","requires_auth":"low_privilege","summary":"Attackers can obtain storage credentials for arbitrary locations during staged table creation, bypassing validation to access or modify unauthorized data.","user_interaction":"not_required","vuln_class":"missing_authorization"},"analysis_generated_by":"qwen3.8-flash-next","assigner":"apache","cpe":[{"product":"polaris","vendor":"apache"}],"cvss":{"score":9.4,"severity":"critical","source":"cna","vector":"CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:H/SC:H/SI:H/SA:H","version":"4.0"},"cwes":[{"id":"CWE-862","name":"Missing Authorization"},{"id":"CWE-20","name":"Improper Input Validation"}],"description":"Apache Polaris can issue broad temporary (\"vended\") storage credentials during\nstaged\ntable creation before the effective table location has been validated or\ndurably reserved. \nThose temporary credentials are meant to limit the scope\nof\naccessible table data and metadata, but this scope limitation becomes\nattacker-\ndirected because the attacker can choose a reachable target location.\n\nIn the confirmed variant, if the caller supplies a custom `location` during\nstage create and requests credential vending, Apache Polaris uses that location to\nconstruct delegated storage credentials immediately. The stage-create path\nitself neither runs the normal location validation nor the overlap checks\nbefore those credentials are issued.\n\nClosely related to that, the staged-create flow also accepts\n`write.data.path` / `write.metadata.path` in the request properties and\nfeeds\nthose location overrides into the same effective table location set used for\ncredential vending. Those fields are secondary to the main custom-`location`\nexploit, but they are still attacker-influenced location inputs that should\nbe\nvalidated before any credentials are issued.","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":"Apache Polaris: staged table creation could vend storage credentials for unvalidated locations","id":"CVE-2026-42809","indexable":true,"kev":null,"kind":"cve","links":{"ecosystem":"Maven","product":null,"products":[],"type":"missing_authorization","year":"2026"},"n_packages":2,"n_references":1,"next":{"headline":"Apache Polaris: could broaden vended S3 credentials through wildcard-bearing namespace or table names","id":"CVE-2026-42810"},"packages":[{"ecosystem":"Maven","fixed":["1.4.1"],"introduced":["0"],"last_affected":[],"package":"org.apache.polaris:polaris-runtime-service","purl":null,"source":"GHSA-8ggj-j522-h5qf"},{"ecosystem":"Maven","fixed":["1.4.1"],"introduced":["0"],"last_affected":[],"package":"org.apache.polaris:polaris-runtime-service","purl":"pkg:maven/org.apache.polaris/polaris-runtime-service","source":"GHSA-8ggj-j522-h5qf"}],"prev":{"headline":"Memory corruption in COINES SDK","id":"CVE-2026-42808"},"products":["Apache Polaris"],"published":"2026-05-04","related":[{"cvss_score":9.4,"headline":"Apache Polaris: could broaden vended S3 credentials through wildcard-bearing namespace or table names","id":"CVE-2026-42810","kev_date_added":null,"published":"2026-05-04"},{"cvss_score":9.4,"headline":"Apache Polaris has an Improper Input Validation issue","id":"CVE-2026-42811","kev_date_added":null,"published":"2026-05-04"},{"cvss_score":9.4,"headline":"Apache Polaris: No protection on `write.metadata.path`","id":"CVE-2026-42812","kev_date_added":null,"published":"2026-05-04"},{"cvss_score":5.3,"headline":"Apache Polaris: register endpoint reads attacker-controlled storage location before allowed-locations validation","id":"CVE-2026-64640","kev_date_added":null,"published":"2026-08-06"}],"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":"no","exploitation":"none","technical_impact":"total"},"state":"PUBLISHED","updated":"2026-05-04","vendors":["Apache Software Foundation"]},"summary":"Attackers can obtain storage credentials for arbitrary locations during staged table creation, bypassing validation to access or modify unauthorized data.","url":"https://insights.sbomify.com/CVE-2026-42809/"}