{"answers":{"affected":"","exploited":"It is not confirmed as exploited in the wild, but public exploit code for CVE-2021-47952 exists.","fix":"No fix has been published for CVE-2021-47952 yet. Limit exposure of the affected software until one is available.","what":"CVE-2021-47952 is a critical unsafe deserialization vulnerability in python jsonpickle, published on 16 May 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-2021-47952 and fix it if it is affected.\n\nWhat it is: CVE-2021-47952 is a critical unsafe deserialization vulnerability in python jsonpickle, published on 16 May 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-2021-47952 exists.\n\nAffected product: python jsonpickle. No package-level version data is available, so check the vendor advisory linked from the reference page.\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-2021-47952/ (Markdown: https://insights.sbomify.com/CVE-2021-47952/index.md)","id":"CVE-2021-47952","markdown":"https://insights.sbomify.com/CVE-2021-47952/index.md","name":"CVE-2021-47952","record":{"aliases":["GHSA-gv3j-fjgf-469v","UBUNTU-CVE-2021-47952"],"analysis":{"component_type":"library","fix_type":"upgrade","impacts":["code_execution"],"network_reachable":"yes","non_default_config":false,"product_category":"Python jsonpickle library","requires_auth":"none","summary":"Attackers can execute arbitrary Python code by sending malicious JSON payloads to applications using the jsonpickle library for deserialization.","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"},{"id":"CWE-94","name":"Improper Control of Generation of Code"}],"description":"python jsonpickle 2.0.0 contains a remote code execution vulnerability that allows attackers to execute arbitrary Python commands by deserializing malicious JSON payloads containing py/repr objects. Attackers can craft JSON strings with py/repr directives that invoke the eval function during deserialization to execute arbitrary code.","ecosystems":[],"exploits":{"exploitdb":0,"first_seen":null,"github_poc":0,"max_poc_stars":null,"metasploit":0,"nuclei":0,"refs":[],"tier":"weaponised"},"has_fix":false,"headline":"python jsonpickle 2.0.0 Remote Code Execution via py/repr","id":"CVE-2021-47952","indexable":true,"kev":null,"kind":"cve","links":{"ecosystem":null,"product":null,"products":[],"type":"deserialization","year":"2021"},"n_packages":0,"n_references":4,"next":{"headline":"OpenCart 3.0.3.7 Cross-Site Request Forgery via account/password","id":"CVE-2021-47953"},"packages":[],"prev":{"headline":"WordPress Picture Gallery 1.4.2 Stored XSS via Edit Content URL","id":"CVE-2021-47951"},"products":["python jsonpickle"],"published":"2026-05-16","related":[],"sources":[{"class":"attribution","licence":"CVE Terms of Use (MITRE)","name":"CVE List","prefix":"CVE"},{"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":"2026-07-28","vendors":["Jsonpickle"]},"summary":"Attackers can execute arbitrary Python code by sending malicious JSON payloads to applications using the jsonpickle library for deserialization.","url":"https://insights.sbomify.com/CVE-2021-47952/"}