{"id":"CVE-2026-53872","summary":"picklescan - Arbitrary File Read via Unsafe Pickle Deserialization","details":"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.","aliases":["GHSA-9726-w42j-3qjr","PYSEC-2026-1787"],"modified":"2026-07-08T08:11:31.424381874Z","published":"2026-06-17T15:05:02.203Z","database_specific":{"osv_generated_from":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/53xxx/CVE-2026-53872.json","cwe_ids":["CWE-22"],"cna_assigner":"VulnCheck"},"references":[{"type":"ADVISORY","url":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/53xxx/CVE-2026-53872.json"},{"type":"ADVISORY","url":"https://github.com/mmaitre314/picklescan/security/advisories/GHSA-9726-w42j-3qjr"},{"type":"ADVISORY","url":"https://nvd.nist.gov/vuln/detail/CVE-2026-53872"},{"type":"ADVISORY","url":"https://www.vulncheck.com/advisories/picklescan-arbitrary-file-read-via-unsafe-pickle-deserialization"}],"affected":[{"ranges":[{"type":"GIT","repo":"https://github.com/mmaitre314/picklescan","events":[{"introduced":"0"},{"fixed":"a01c58d5dd7960db557b849817c0ab83ab111ef1"}],"database_specific":{"extracted_events":[{"introduced":"0"},{"fixed":"0.0.35"}],"source":["AFFECTED_FIELD","DESCRIPTION"]}}],"versions":["v0.0.34","v0.0.33","v0.0.32","v0.0.31","v0.0.30","v0.0.29","v0.0.28","v0.0.27","v0.0.26","v0.0.25","v0.0.24","v0.0.23","v0.0.22","v0.0.21","v0.0.20","v0.0.19","v0.0.18","v0.0.17","v0.0.15","v0.0.14","v0.0.13","v0.0.12","v0.0.11","v0.0.10","v0.0.9","v0.0.8","v0.0.7","v0.0.6","v0.0.5","v0.0.4","v0.0.3","v0.0.2"],"database_specific":{"source":"https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-53872.json"}}],"schema_version":"1.7.5","severity":[{"type":"CVSS_V4","score":"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"}]}