{"answers":{"affected":"3 open source packages ship an affected version, including picklescan.","exploited":"It is not confirmed as exploited in the wild, but public exploit code for CVE-2025-71321 exists.","fix":"Upgrade picklescan to 0.0.33 or later.","what":"CVE-2025-71321 is a critical unsafe deserialization vulnerability in picklescan, published on 17 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-2025-71321 and fix it if it is affected.\n\nWhat it is: CVE-2025-71321 is a critical unsafe deserialization vulnerability in picklescan, published on 17 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-2025-71321 exists.\n\nAffected packages and fixed versions:\n- picklescan (PyPI): affected all versions; fixed in 0.0.33\n- picklescan (PyPI): affected all versions; fixed in 0.0.33\n- picklescan (PyPI): affected all versions; fixed in 0.0.33\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-2025-71321/ (Markdown: https://insights.sbomify.com/CVE-2025-71321/index.md)","id":"CVE-2025-71321","markdown":"https://insights.sbomify.com/CVE-2025-71321/index.md","name":"CVE-2025-71321","record":{"aliases":["GHSA-m273-6v24-x4m4","PYSEC-2026-1791"],"analysis":{"component_type":"library","fix_type":"upgrade","impacts":["code_execution","denial_of_service"],"network_reachable":"yes","non_default_config":false,"product_category":"Python pickle scanner","requires_auth":"none","summary":"Attackers can bypass blocklists in picklescan to write arbitrary files via distutils, leading to remote code execution or denial of service.","user_interaction":"not_required","vuln_class":"deserialization"},"analysis_generated_by":"qwen3.8-flash-next","assigner":"VulnCheck","cpe":[],"cvss":{"score":9.3,"severity":"critical","source":"cna","vector":"CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N","version":"4.0"},"cwes":[{"id":"CWE-502","name":"Deserialization of Untrusted Data"}],"description":"picklescan before 0.0.33 contains an arbitrary file writing vulnerability that allows attackers to bypass the dangerous blocklist by using distutils.file_util.write_file. Attackers can construct malicious pickle objects to overwrite critical system files and achieve denial of service or remote code execution.","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 Writing via distutils Module Bypass","id":"CVE-2025-71321","indexable":true,"kev":null,"kind":"cve","links":{"ecosystem":"PyPI","product":null,"products":[],"type":"deserialization","year":"2025"},"n_packages":3,"n_references":2,"next":{"headline":"PickleScan - Unsafe Globals Check Bypass via pty.spawn Function","id":"CVE-2025-71322"},"packages":[{"ecosystem":"PyPI","fixed":["0.0.33"],"introduced":["0"],"last_affected":[],"package":"picklescan","purl":null,"source":"GHSA-m273-6v24-x4m4"},{"ecosystem":"PyPI","fixed":["0.0.33"],"introduced":["0"],"last_affected":[],"package":"picklescan","purl":"pkg:pypi/picklescan","source":"GHSA-m273-6v24-x4m4"},{"ecosystem":"PyPI","fixed":["0.0.33"],"introduced":["0"],"last_affected":[],"package":"picklescan","purl":"pkg:pypi/picklescan","source":"PYSEC-2026-1791"}],"prev":{"headline":"picklescan - Remote Code Execution via Incomplete Disallowed Inputs","id":"CVE-2025-71320"},"products":["picklescan"],"published":"2026-06-17","related":[],"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":"CWE Terms of Use","name":"CWE (MITRE)"},{"class":"attribution","licence":"FIRST CVSS licence","name":"CVSS (FIRST)"}],"ssvc":{"automatable":"yes","exploitation":"poc","technical_impact":"total"},"state":"PUBLISHED","updated":"2026-06-17","vendors":["picklescan"]},"summary":"Attackers can bypass blocklists in picklescan to write arbitrary files via distutils, leading to remote code execution or denial of service.","url":"https://insights.sbomify.com/CVE-2025-71321/"}