{"id":"CVE-2026-53872","aliases":["GHSA-9726-w42j-3qjr","PYSEC-2026-1787"],"url":"https://o3.security/vulnerability/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.","published":"2026-06-17T15:05:02.203Z","modified":"2026-08-07T11:51:19.526977283Z","cvss":null,"epss":null,"cisaKev":null,"exploitsKnown":0,"affectedPackages":[{"ecosystem":"PyPI","name":"picklescan","fixedVersion":"0.0.35"}],"fix":null,"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"}],"provenance":{"sources":["OSV.dev","FIRST.org (EPSS)"],"lastVerified":"2026-08-07T11:51:19.526977283Z"}}