{"dataType":"CVE_RECORD","dataVersion":"5.2","cveMetadata":{"cveId":"CVE-2021-47952","assignerOrgId":"83251b91-4cc7-4094-a5c7-464a1b83ea10","state":"PUBLISHED","assignerShortName":"VulnCheck","dateReserved":"2026-02-01T11:24:18.719Z","datePublished":"2026-05-16T15:26:06.248Z","dateUpdated":"2026-06-27T05:17:24.569Z"},"containers":{"cna":{"providerMetadata":{"orgId":"83251b91-4cc7-4094-a5c7-464a1b83ea10","shortName":"VulnCheck","dateUpdated":"2026-05-26T11:51:43.547Z"},"datePublic":"2021-02-24T00:00:00.000Z","title":"python jsonpickle 2.0.0 Remote Code Execution via py/repr","descriptions":[{"lang":"en","value":"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."}],"problemTypes":[{"descriptions":[{"lang":"en","description":"Improper Control of Generation of Code ('Code Injection')","cweId":"CWE-94","type":"CWE"}]}],"affected":[{"vendor":"Jsonpickle","product":"python jsonpickle","versions":[{"version":"2.0.0","status":"affected"}]}],"metrics":[{"cvssV4_0":{"Automatable":"NOT_DEFINED","Recovery":"NOT_DEFINED","Safety":"NOT_DEFINED","attackComplexity":"LOW","attackRequirements":"NONE","attackVector":"NETWORK","baseScore":9.3,"baseSeverity":"CRITICAL","privilegesRequired":"NONE","providerUrgency":"NOT_DEFINED","subAvailabilityImpact":"NONE","subConfidentialityImpact":"NONE","subIntegrityImpact":"NONE","userInteraction":"NONE","valueDensity":"NOT_DEFINED","vectorString":"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","vulnAvailabilityImpact":"HIGH","vulnConfidentialityImpact":"HIGH","vulnIntegrityImpact":"HIGH","vulnerabilityResponseEffort":"NOT_DEFINED"},"format":"CVSS"},{"cvssV3_1":{"attackComplexity":"LOW","attackVector":"NETWORK","availabilityImpact":"HIGH","baseScore":9.8,"baseSeverity":"CRITICAL","confidentialityImpact":"HIGH","integrityImpact":"HIGH","privilegesRequired":"NONE","scope":"UNCHANGED","userInteraction":"NONE","vectorString":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H","version":"3.1"},"format":"CVSS"}],"references":[{"url":"https://www.exploit-db.com/exploits/49585","name":"ExploitDB-49585","tags":["exploit"]},{"url":"https://jsonpickle.github.io","name":"Official Product Homepage","tags":["product"]},{"url":"https://github.com/jsonpickle/jsonpickle","name":"Product Reference","tags":["product"]},{"name":"VulnCheck Advisory: python jsonpickle 2.0.0 Remote Code Execution via py/repr","tags":["third-party-advisory"],"url":"https://www.vulncheck.com/advisories/python-jsonpickle-remote-code-execution-via-py-repr"}],"credits":[{"lang":"en","value":"Adi Malyanker, Shay Reuven","type":"finder"}],"x_generator":{"engine":"vulncheck"}},"adp":[{"metrics":[{"other":{"type":"ssvc","content":{"timestamp":"2026-05-18T17:00:43.878538Z","id":"CVE-2021-47952","options":[{"Exploitation":"poc"},{"Automatable":"yes"},{"Technical Impact":"total"}],"role":"CISA Coordinator","version":"2.0.3"}}}],"title":"CISA ADP Vulnrichment","providerMetadata":{"orgId":"134c704f-9b21-4f2e-91b3-4a467353bcc0","shortName":"CISA-ADP","dateUpdated":"2026-05-18T17:01:06.050Z"}},{"affected":[{"cpes":["cpe:/a:redhat:ansible_automation_platform:2"],"defaultStatus":"unaffected","product":"Red Hat Ansible Automation Platform 2","vendor":"Red Hat"}],"datePublic":"2026-05-16T15:26:06.248Z","descriptions":[{"lang":"en","value":"A flaw was found in python-jsonpickle. A remote attacker can exploit this vulnerability by crafting and sending malicious JSON payloads. When these payloads, which contain specially crafted py/repr objects, are deserialized, they can trigger the execution of arbitrary Python commands and system commands. This can lead to arbitrary code execution on the affected system."}],"metrics":[{"other":{"content":{"namespace":"https://access.redhat.com/security/updates/classification/","value":"Critical"},"type":"Red Hat severity rating"}},{"cvssV3_1":{"attackComplexity":"LOW","attackVector":"NETWORK","availabilityImpact":"HIGH","baseScore":9.8,"baseSeverity":"CRITICAL","confidentialityImpact":"HIGH","integrityImpact":"HIGH","privilegesRequired":"NONE","scope":"UNCHANGED","userInteraction":"NONE","vectorString":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H","version":"3.1"},"format":"CVSS"}],"problemTypes":[{"descriptions":[{"cweId":"CWE-502","description":"Deserialization of Untrusted Data","lang":"en","type":"CWE"}]}],"references":[{"tags":["vdb-entry","x_refsource_REDHAT"],"url":"https://access.redhat.com/security/cve/CVE-2021-47952"},{"name":"RHBZ#2478170","tags":["issue-tracking","x_refsource_REDHAT"],"url":"https://bugzilla.redhat.com/show_bug.cgi?id=2478170"},{"tags":["x_sadp-csaf-vex"],"url":"https://security.access.redhat.com/data/csaf/v2/vex/2021/cve-2021-47952.json"}],"timeline":[{"lang":"en","time":"2026-05-16T16:01:30.205Z","value":"Reported to Red Hat."},{"lang":"en","time":"2026-05-16T15:26:06.248Z","value":"Made public."}],"title":"python-jsonpickle: python-jsonpickle: Arbitrary Code Execution via Malicious JSON Deserialization","x_adpType":"supplier","x_generator":{"engine":"sadp-cli 1.0.0"},"providerMetadata":{"orgId":"0b0ca135-0b70-47e7-9f44-1890c2a1c46c","shortName":"redhat-SADP","dateUpdated":"2026-06-27T05:17:24.569Z"}}]}}