{"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-2026-33858 in the wild and no public exploit code.","fix":"Upgrade apache-airflow to 3.2.0 or later.","what":"CVE-2026-33858 is a high-severity unsafe deserialization vulnerability in Apache Airflow, published on 13 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-2026-33858 and fix it if it is affected.\n\nWhat it is: CVE-2026-33858 is a high-severity unsafe deserialization vulnerability in Apache Airflow, published on 13 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-2026-33858 in the wild and no public exploit code.\n\nAffected packages and fixed versions:\n- apache-airflow (PyPI): affected from 3.1.8; fixed in 3.2.0\n- apache-airflow (PyPI): affected from 3.1.8; fixed in 3.2.0\n- apache-airflow (PyPI): affected from 3.1.8; fixed in 3.2.0\n- airflow (Bitnami): affected from 3.1.8; 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-2026-33858/ (Markdown: https://insights.sbomify.com/CVE-2026-33858/index.md)","id":"CVE-2026-33858","markdown":"https://insights.sbomify.com/CVE-2026-33858/index.md","name":"CVE-2026-33858","record":{"aliases":["BIT-airflow-2026-33858","ECHO-a0ac-41bb-a272","GHSA-mc4f-r875-v87w","MINI-97fw-3337-7rq4","PYSEC-2026-20"],"analysis":{"component_type":"web_application","fix_type":"upgrade","impacts":["code_execution"],"network_reachable":"yes","non_default_config":false,"product_category":"Apache Airflow","requires_auth":"low_privilege","summary":"Dag authors can execute arbitrary code in the webserver context by crafting malicious XCom payloads via unsafe deserialization.","user_interaction":"not_required","vuln_class":"deserialization"},"analysis_generated_by":"qwen3.8-flash-next","assigner":"apache","cpe":[{"product":"airflow","vendor":"apache"}],"cvss":{"score":8.8,"severity":"high","source":"cisa-adp","vector":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H","version":"3.1"},"cwes":[{"id":"CWE-502","name":"Deserialization of Untrusted Data"}],"description":"Dag Authors, who normally should not be able to execute code in the webserver context could craft XCom payload causing the webserver to execute arbitrary code. Since Dag Authors are already highly trusted, severity of this issue is Low.\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: Unsafe Deserialization via Legacy Serialization Keys (__type/__var) Bypass in XCom API","id":"CVE-2026-33858","indexable":true,"kev":null,"kind":"cve","links":{"ecosystem":"Bitnami","product":"apache:airflow","products":["apache:airflow"],"type":"deserialization","year":"2026"},"n_packages":4,"n_references":2,"next":{"headline":"Cross-site scripting in Teamcenter V2312","id":"CVE-2026-33862"},"packages":[{"ecosystem":"Bitnami","fixed":["3.2.0"],"introduced":["3.1.8"],"last_affected":[],"package":"airflow","purl":"pkg:bitnami/airflow","source":"BIT-airflow-2026-33858"},{"ecosystem":"PyPI","fixed":["3.2.0"],"introduced":["3.1.8"],"last_affected":[],"package":"apache-airflow","purl":null,"source":"GHSA-mc4f-r875-v87w"},{"ecosystem":"PyPI","fixed":["3.2.0"],"introduced":["3.1.8"],"last_affected":[],"package":"apache-airflow","purl":"pkg:pypi/apache-airflow","source":"GHSA-mc4f-r875-v87w"},{"ecosystem":"PyPI","fixed":["3.2.0"],"introduced":["3.1.8"],"last_affected":[],"package":"apache-airflow","purl":"pkg:pypi/apache-airflow","source":"PYSEC-2026-20"}],"prev":{"headline":"Apache HTTP Server: Off-by-one OOB reads in AJP getter functions","id":"CVE-2026-33857"},"products":["Apache Airflow"],"published":"2026-04-13","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":"total"},"state":"PUBLISHED","updated":"2026-04-14","vendors":["Apache Software Foundation"]},"summary":"Dag authors can execute arbitrary code in the webserver context by crafting malicious XCom payloads via unsafe deserialization.","url":"https://insights.sbomify.com/CVE-2026-33858/"}