{"answers":{"affected":"3 open source packages ship an affected version, including picklescan. It affects 1 product.","exploited":"It is not confirmed as exploited in the wild, but public exploit code for CVE-2026-56304 exists.","fix":"Upgrade picklescan to 1.0.1 or later.","what":"CVE-2026-56304 is a medium-severity unsafe deserialization vulnerability in picklescan, published on 20 Jun 2026. An attacker can exploit it over the internet without logging in, with no action from the victim."},"fix_prompt":"Check this codebase for CVE-2026-56304 and fix it if it is affected.\n\nWhat it is: CVE-2026-56304 is a medium-severity unsafe deserialization vulnerability in picklescan, published on 20 Jun 2026. An attacker can exploit it over the internet without logging in, with no action from the victim.\nExploitation: It is not confirmed as exploited in the wild, but public exploit code for CVE-2026-56304 exists.\n\nAffected packages and fixed versions:\n- picklescan (PyPI): affected all versions; fixed in 1.0.1\n- picklescan (PyPI): affected all versions; fixed in 1.0.1\n- picklescan (PyPI): affected all versions; fixed in 1.0.1\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-2026-56304/ (Markdown: https://insights.sbomify.com/CVE-2026-56304/index.md)","id":"CVE-2026-56304","markdown":"https://insights.sbomify.com/CVE-2026-56304/index.md","name":"CVE-2026-56304","record":{"aliases":["GHSA-hqgf-f82p-fjh7","GHSA-m7j5-r2p5-c39r","PYSEC-2026-225"],"analysis":{"component_type":"library","fix_type":"upgrade","impacts":["denial_of_service","data_modify"],"network_reachable":"yes","non_default_config":false,"product_category":"Python pickle scanner","requires_auth":"none","summary":"Unauthenticated attackers can create arbitrary files via unsafe pickle deserialization in picklescan, potentially causing denial of service.","user_interaction":"not_required","vuln_class":"deserialization"},"analysis_generated_by":"qwen3.8-flash-next","assigner":"VulnCheck","cpe":[{"product":"picklescan","vendor":"mmaitre314"}],"cvss":{"score":6.9,"severity":"medium","source":"cna","vector":"CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:L/VA:L/SC:N/SI:N/SA:N","version":"4.0"},"cwes":[{"id":"CWE-502","name":"Deserialization of Untrusted Data"}],"description":"picklescan before 1.0.1 contains an unsafe pickle deserialization vulnerability allowing unauthenticated attackers to create arbitrary zero-byte files via logging.FileHandler class instantiation. Attackers can exploit this by crafting malicious pickle payloads to bypass RCE blocklists and create lock files or other filesystem artifacts, potentially causing denial of service or application disruption.","ecosystems":["PyPI"],"exploits":{"exploitdb":0,"first_seen":null,"github_poc":0,"max_poc_stars":null,"metasploit":0,"nuclei":0,"refs":[],"tier":"weaponised"},"has_fix":true,"headline":"picklescan - Arbitrary File Creation via logging.FileHandler Deserialization","id":"CVE-2026-56304","indexable":true,"kev":null,"kind":"cve","links":{"ecosystem":"PyPI","product":null,"products":[],"type":"deserialization","year":"2026"},"n_packages":3,"n_references":2,"next":{"headline":"Capgo - Authentication Bypass in Password Change via Missing Current Password Validation","id":"CVE-2026-56305"},"packages":[{"ecosystem":"PyPI","fixed":["1.0.1"],"introduced":["0"],"last_affected":[],"package":"picklescan","purl":null,"source":"GHSA-m7j5-r2p5-c39r"},{"ecosystem":"PyPI","fixed":["1.0.1"],"introduced":["0"],"last_affected":[],"package":"picklescan","purl":"pkg:pypi/picklescan","source":"GHSA-m7j5-r2p5-c39r"},{"ecosystem":"PyPI","fixed":["1.0.1"],"introduced":["0"],"last_affected":[],"package":"picklescan","purl":"pkg:pypi/picklescan","source":"PYSEC-2026-225"}],"prev":{"headline":"Capgo - Unauthenticated API Key Metadata Disclosure via SECURITY DEFINER RPC Function","id":"CVE-2026-56303"},"products":["picklescan"],"published":"2026-06-20","related":[{"cvss_score":9.3,"headline":"PickleScan Security Bypass Using Misleading File Extension","id":"CVE-2025-10155","kev_date_added":null,"published":"2025-09-17"},{"cvss_score":9.3,"headline":"PickleScan Security Bypass via Bad CRC in ZIP Archive","id":"CVE-2025-10156","kev_date_added":null,"published":"2025-09-17"},{"cvss_score":9.3,"headline":"PickleScan Bypasses Unsafe Globals Check Using Submodule Imports","id":"CVE-2025-10157","kev_date_added":null,"published":"2025-09-17"},{"cvss_score":7.6,"headline":"picklescan - Arbitrary Code Execution via torch.utils._config_module.load_config Bypass","id":"CVE-2025-71348","kev_date_added":null,"published":"2026-06-21"},{"cvss_score":7.6,"headline":"picklescan - Arbitrary Code Execution via Undetected idlelib.pyshell.ModifiedInterpreter.runcommand","id":"CVE-2025-71357","kev_date_added":null,"published":"2026-06-21"},{"cvss_score":7.6,"headline":"picklescan - Remote Code Execution via Undetected cProfile.runctx in Pickle Files","id":"CVE-2025-71378","kev_date_added":null,"published":"2026-06-21"}],"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":"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":"yes","exploitation":"poc","technical_impact":"partial"},"state":"PUBLISHED","updated":"2026-06-24","vendors":["picklescan"]},"summary":"Unauthenticated attackers can create arbitrary files via unsafe pickle deserialization in picklescan, potentially causing denial of service.","url":"https://insights.sbomify.com/CVE-2026-56304/"}