{"document":{"category":"csaf_vex","csaf_version":"2.0","title":"CVE-2026-53873: picklescan - Arbitrary Code Execution via profile.run() Blocklist Bypass","publisher":{"category":"vendor","name":"HarborGuard Database","namespace":"https://database.harborguard.co"},"tracking":{"id":"CVE-2026-53873","status":"final","version":"1","initial_release_date":"2026-06-17T15:05:02.886Z","current_release_date":"2026-06-17T18:12:06.841Z","revision_history":[{"date":"2026-06-17T15:05:02.886Z","number":"1","summary":"Initial machine-readable export from HarborGuard."}]},"distribution":{"tlp":{"label":"WHITE"},"text":"Public CVE data; freely redistributable."},"notes":[{"category":"description","text":"picklescan before 1.0.4 contains an incomplete blocklist for the profile module that fails to block the module-level profile.run() function, allowing attackers to achieve arbitrary code execution via exec(). Attackers can craft malicious pickle files calling profile.run(statement) to execute arbitrary Python code while picklescan reports zero security issues.","title":"CVE description"}],"references":[{"category":"self","summary":"CVE-2026-53873 on HarborGuard Database","url":"https://database.harborguard.co/cve/CVE-2026-53873"},{"category":"external","summary":"CVE Record","url":"https://www.cve.org/CVERecord?id=CVE-2026-53873"},{"category":"external","summary":"GHSA Advisory GHSA-7wx9-6375-f5wh","url":"https://github.com/mmaitre314/picklescan/security/advisories/GHSA-7wx9-6375-f5wh"},{"category":"external","summary":"VulnCheck Advisory: picklescan - Arbitrary Code Execution via profile.run() Blocklist Bypass","url":"https://www.vulncheck.com/advisories/picklescan-arbitrary-code-execution-via-profile-run-blocklist-bypass"}]},"product_tree":{"branches":[{"category":"vendor","name":"picklescan","branches":[{"category":"product_name","name":"picklescan","branches":[{"category":"product_version_range","name":"<1.0.4","product":{"name":"picklescan picklescan <1.0.4","product_id":"CSAFPID-1","product_identification_helper":{"cpe":"cpe:2.3:a:picklescan:picklescan:*:*:*:*:*:*:*:*"}}},{"category":"product_version","name":"1.0.4","product":{"name":"picklescan picklescan 1.0.4","product_id":"CSAFPID-2","product_identification_helper":{"cpe":"cpe:2.3:a:picklescan:picklescan:*:*:*:*:*:*:*:*"}}}]}]}]},"vulnerabilities":[{"cve":"CVE-2026-53873","title":"picklescan - Arbitrary Code Execution via profile.run() Blocklist Bypass","notes":[{"category":"description","text":"picklescan before 1.0.4 contains an incomplete blocklist for the profile module that fails to block the module-level profile.run() function, allowing attackers to achieve arbitrary code execution via exec(). Attackers can craft malicious pickle files calling profile.run(statement) to execute arbitrary Python code while picklescan reports zero security issues.","title":"CVE description"}],"product_status":{"known_affected":["CSAFPID-1"],"fixed":["CSAFPID-2"]},"scores":[{"cvss_v4":{"version":"4.0","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","baseScore":9.3,"baseSeverity":"CRITICAL"},"products":["CSAFPID-1"]}],"remediations":[{"category":"vendor_fix","details":"Update to a fixed version: 1.0.4.","product_ids":["CSAFPID-1"]}]}]}