{"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-2026-40861 in the wild and no public exploit code.","fix":"Upgrade apache-airflow to 3.2.2 or later.","what":"CVE-2026-40861 is a medium-severity path traversal vulnerability in Apache Airflow, published on 1 Jun 2026. Any signed-in user can exploit it over the network, with no action from the victim."},"fix_prompt":"Check this codebase for CVE-2026-40861 and fix it if it is affected.\n\nWhat it is: CVE-2026-40861 is a medium-severity path traversal vulnerability in Apache Airflow, published on 1 Jun 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-2026-40861 in the wild and no public exploit code.\n\nAffected packages and fixed versions:\n- apache-airflow (PyPI): affected all versions; fixed in 3.2.2\n- apache-airflow (PyPI): affected all versions; fixed in 3.2.2\n- apache-airflow (PyPI): affected all versions; fixed in 3.2.2\n- airflow (Bitnami): affected all versions; fixed in 3.2.2\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-2026-40861/ (Markdown: https://insights.sbomify.com/CVE-2026-40861/index.md)","id":"CVE-2026-40861","markdown":"https://insights.sbomify.com/CVE-2026-40861/index.md","name":"CVE-2026-40861","record":{"aliases":["BIT-airflow-2026-40861","ECHO-765c-0c1b-39b8","GHSA-89cj-xrpx-j79m","MINI-488p-56v5-m2cv","MINI-7xhx-h3r2-jrch","PYSEC-2026-181"],"analysis":{"component_type":"server_software","fix_type":"upgrade","impacts":["data_read","data_modify"],"network_reachable":"yes","non_default_config":true,"product_category":"Apache Airflow","requires_auth":"low_privilege","summary":"A Dag author can read or overwrite arbitrary files via symlink or path traversal in log handling if worker and API server share log volumes.","user_interaction":"not_required","vuln_class":"path_traversal"},"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-59","name":"Improper Link Resolution Before File Access"}],"description":"A Dag author could either (a) create a symlink under their task's log directory pointing to an arbitrary file readable by the API server process (read-path attack — e.g. `/etc/passwd` or `airflow.cfg`) or (b) supply a `task_id` containing `..` sequences accepted by the Task SDK's `KEY_REGEX` (write-path attack), and in both cases the FileTaskHandler resolves the log path outside the configured `base_log_folder`, leaking or overwriting arbitrary files. Only affects deployments where the worker log folder is shared with the API server. Users are advised to upgrade to `apache-airflow` 3.2.2 or later. As a defense-in-depth mitigation, deploy the worker and API server with separate log volumes so that worker-controlled paths cannot reach the API server's filesystem.","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: Arbitrary File Read via Log Symlink following in FileTaskHandler","id":"CVE-2026-40861","indexable":true,"kev":null,"kind":"cve","links":{"ecosystem":"Bitnami","product":"apache:airflow","products":["apache:airflow"],"type":"path_traversal","year":"2026"},"n_packages":4,"n_references":2,"next":{"headline":"PhpSpreadsheet: CPU Denial of Service via Unbounded Row Index in SpreadsheetML XML Reader","id":"CVE-2026-40863"},"packages":[{"ecosystem":"Bitnami","fixed":["3.2.2"],"introduced":["0"],"last_affected":[],"package":"airflow","purl":"pkg:bitnami/airflow","source":"BIT-airflow-2026-40861"},{"ecosystem":"PyPI","fixed":["3.2.2"],"introduced":["0"],"last_affected":[],"package":"apache-airflow","purl":null,"source":"GHSA-89cj-xrpx-j79m"},{"ecosystem":"PyPI","fixed":["3.2.2"],"introduced":["0"],"last_affected":[],"package":"apache-airflow","purl":"pkg:pypi/apache-airflow","source":"GHSA-89cj-xrpx-j79m"},{"ecosystem":"PyPI","fixed":["3.2.2"],"introduced":["0"],"last_affected":[],"package":"apache-airflow","purl":"pkg:pypi/apache-airflow","source":"PYSEC-2026-181"}],"prev":{"headline":"Apache Camel: Unsafe Deserialization of JMS ObjectMessage in camel-jms, camel-sjms, camel-sjms2 and camel-amqp","id":"CVE-2026-40860"},"products":["Apache Airflow"],"published":"2026-06-01","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":"2026-06-02","vendors":["Apache Software Foundation"]},"summary":"A Dag author can read or overwrite arbitrary files via symlink or path traversal in log handling if worker and API server share log volumes.","url":"https://insights.sbomify.com/CVE-2026-40861/"}