{"answers":{"affected":"4 open source packages ship an affected version, including apache-airflow and airflow. It affects 1 product.","exploited":"There is no known exploitation of CVE-2026-34538 in the wild and no public exploit code.","fix":"Upgrade apache-airflow to 3.2.0 or later.","what":"CVE-2026-34538 is a medium-severity missing authorization vulnerability in Apache Airflow, published on 9 Apr 2026. Any signed-in user can exploit it over the network, with no action from the victim."},"fix_prompt":"Check this codebase for CVE-2026-34538 and fix it if it is affected.\n\nWhat it is: CVE-2026-34538 is a medium-severity missing authorization vulnerability in Apache Airflow, published on 9 Apr 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-2026-34538 in the wild and no public exploit code.\n\nAffected packages and fixed versions:\n- apache-airflow (PyPI): affected from 3.0.0; fixed in 3.2.0\n- apache-airflow (PyPI): affected from 3.0.0; fixed in 3.2.0\n- apache-airflow (PyPI): affected from 3.0.0; fixed in 3.2.0\n- airflow (Bitnami): affected from 3.0.0; fixed in 3.2.0\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-2026-34538/ (Markdown: https://insights.sbomify.com/CVE-2026-34538/index.md)","id":"CVE-2026-34538","markdown":"https://insights.sbomify.com/CVE-2026-34538/index.md","name":"CVE-2026-34538","record":{"aliases":["BIT-airflow-2026-34538","ECHO-1071-fe4c-2ff9","GHSA-r7vr-m4jw-r794","MINI-xhj8-q7cf-g9pr","PYSEC-2026-21"],"analysis":{"component_type":"web_application","fix_type":"upgrade","impacts":["data_read"],"network_reachable":"yes","non_default_config":false,"product_category":"Apache Airflow","requires_auth":"low_privilege","summary":"Users with Viewer role can access sensitive XCom results via the DagRun wait endpoint, bypassing intended read-only restrictions.","user_interaction":"not_required","vuln_class":"missing_authorization"},"analysis_generated_by":"qwen3.8-flash-next","assigner":"apache","cpe":[{"product":"airflow","vendor":"apache"}],"cvss":{"score":6.5,"severity":"medium","source":"cisa-adp","vector":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N","version":"3.1"},"cwes":[{"id":"CWE-668","name":"Exposure of Resource to Wrong Sphere"}],"description":"Apache Airflow versions 3.0.0 through 3.1.8 DagRun wait endpoint returns XCom result values even to users who only have DAG Run read permissions, such as the Viewer role.This behavior conflicts with the FAB RBAC model, which treats XCom as a separate protected resource, and with the security model documentation that defines the Viewer role as read-only.\n\nAirflow uses the FAB Auth Manager to manage access control on a per-resource basis. The Viewer role is intended to be read-only by default, and the security model documentation defines Viewer users as those who can inspect DAGs without accessing sensitive execution results.\n\nUsers are recommended to upgrade to Apache Airflow 3.2.0 which resolves this issue.","ecosystems":["Bitnami","PyPI"],"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 Airflow: Authorization bypass in DagRun wait endpoint (XCom exposure)","id":"CVE-2026-34538","indexable":true,"kev":null,"kind":"cve","links":{"ecosystem":"Bitnami","product":"apache:airflow","products":["apache:airflow"],"type":"missing_authorization","year":"2026"},"n_packages":4,"n_references":2,"next":{"headline":"iccDEV: HBO in CTiffImg::WriteLine()","id":"CVE-2026-34539"},"packages":[{"ecosystem":"Bitnami","fixed":["3.2.0"],"introduced":["3.0.0"],"last_affected":[],"package":"airflow","purl":"pkg:bitnami/airflow","source":"BIT-airflow-2026-34538"},{"ecosystem":"PyPI","fixed":["3.2.0"],"introduced":["3.0.0"],"last_affected":[],"package":"apache-airflow","purl":null,"source":"GHSA-r7vr-m4jw-r794"},{"ecosystem":"PyPI","fixed":["3.2.0"],"introduced":["3.0.0"],"last_affected":[],"package":"apache-airflow","purl":"pkg:pypi/apache-airflow","source":"GHSA-r7vr-m4jw-r794"},{"ecosystem":"PyPI","fixed":["3.2.0"],"introduced":["3.0.0"],"last_affected":[],"package":"apache-airflow","purl":"pkg:pypi/apache-airflow","source":"PYSEC-2026-21"}],"prev":{"headline":"iccDEV: UB in CIccOpDefEnvVar::Exec()","id":"CVE-2026-34537"},"products":["Apache Airflow"],"published":"2026-04-09","related":[{"cvss_score":9.8,"headline":"Apache Airflow's Experimental API Authentication Bypass","id":"CVE-2020-13927","kev_date_added":"2022-01-18","published":"2020-11-10"},{"cvss_score":8.8,"headline":"Apache Airflow Command Injection","id":"CVE-2020-11978","kev_date_added":"2022-01-18","published":"2020-07-16"},{"cvss_score":9.8,"headline":"Apache Airflow: DAG author RCE on webserver via unrestricted import_string() in BaseSerialization.deserialize()","id":"CVE-2026-33264","kev_date_added":null,"published":"2026-07-07"},{"cvss_score":9.8,"headline":"Apache Airflow: Privilege escalation using airflow logs","id":"CVE-2023-25754","kev_date_added":null,"published":"2023-05-08"},{"cvss_score":9.8,"headline":"Apache Airflow, Apache Airflow MySQL Provider: Arbitrary file read via MySQL provider in Apache Airflow","id":"CVE-2023-22884","kev_date_added":null,"published":"2023-01-21"},{"cvss_score":9.8,"headline":"Apache Airflow Pinot provider allowed Command Injection","id":"CVE-2022-38649","kev_date_added":null,"published":"2022-11-22"},{"cvss_score":9.8,"headline":"Apache Airlfow Pig Provider RCE","id":"CVE-2022-40189","kev_date_added":null,"published":"2022-11-22"}],"sources":[{"class":"attribution","licence":"Apache-2.0","name":"Bitnami","prefix":"BIT"},{"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":"CC BY 4.0","name":"PyPA Advisory Database","prefix":"PYSEC"},{"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":"2026-04-09","vendors":["Apache Software Foundation"]},"summary":"Users with Viewer role can access sensitive XCom results via the DagRun wait endpoint, bypassing intended read-only restrictions.","url":"https://insights.sbomify.com/CVE-2026-34538/"}