{"document":{"category":"csaf_vex","csaf_version":"2.0","title":"CVE-2026-53872: picklescan - Arbitrary File Read via Unsafe Pickle Deserialization","publisher":{"category":"vendor","name":"HarborGuard Database","namespace":"https://database.harborguard.co"},"tracking":{"id":"CVE-2026-53872","status":"final","version":"1","initial_release_date":"2026-06-17T15:05:02.203Z","current_release_date":"2026-06-17T17:36:17.833Z","revision_history":[{"date":"2026-06-17T15:05:02.203Z","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 0.0.35 contains an unsafe pickle deserialization vulnerability allowing unauthenticated attackers to read arbitrary server files by chaining io.FileIO and urllib.request.urlopen. Attackers can bypass RCE-focused blocklists to exfiltrate sensitive data like /etc/passwd to external servers.","title":"CVE description"}],"references":[{"category":"self","summary":"CVE-2026-53872 on HarborGuard Database","url":"https://database.harborguard.co/cve/CVE-2026-53872"},{"category":"external","summary":"CVE Record","url":"https://www.cve.org/CVERecord?id=CVE-2026-53872"},{"category":"external","summary":"GHSA Advisory GHSA-9726-w42j-3qjr","url":"https://github.com/mmaitre314/picklescan/security/advisories/GHSA-9726-w42j-3qjr"},{"category":"external","summary":"VulnCheck Advisory: picklescan - Arbitrary File Read via Unsafe Pickle Deserialization","url":"https://www.vulncheck.com/advisories/picklescan-arbitrary-file-read-via-unsafe-pickle-deserialization"}]},"product_tree":{"branches":[{"category":"vendor","name":"picklescan","branches":[{"category":"product_name","name":"picklescan","branches":[{"category":"product_version_range","name":"<0.0.35","product":{"name":"picklescan picklescan <0.0.35","product_id":"CSAFPID-1","product_identification_helper":{"cpe":"cpe:2.3:a:picklescan:picklescan:*:*:*:*:*:*:*:*"}}},{"category":"product_version","name":"0.0.35","product":{"name":"picklescan picklescan 0.0.35","product_id":"CSAFPID-2","product_identification_helper":{"cpe":"cpe:2.3:a:picklescan:picklescan:*:*:*:*:*:*:*:*"}}}]}]}]},"vulnerabilities":[{"cve":"CVE-2026-53872","title":"picklescan - Arbitrary File Read via Unsafe Pickle Deserialization","notes":[{"category":"description","text":"picklescan before 0.0.35 contains an unsafe pickle deserialization vulnerability allowing unauthenticated attackers to read arbitrary server files by chaining io.FileIO and urllib.request.urlopen. Attackers can bypass RCE-focused blocklists to exfiltrate sensitive data like /etc/passwd to external servers.","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:N/VA:N/SC:N/SI:N/SA:N","baseScore":8.7,"baseSeverity":"HIGH"},"products":["CSAFPID-1"]}],"remediations":[{"category":"vendor_fix","details":"Update to a fixed version: 0.0.35.","product_ids":["CSAFPID-1"]}]}]}