{"id":"CVE-2026-22607","published":"2026-01-10T01:35:04Z","modified":"2026-01-13T21:49:38Z","title":"Fickling Blocklist Bypass: cProfile.run()","vendor":"trailofbits","product":"fickling","tier":"tail","description":{"text":"Fickling is a Python pickling decompiler and static analyzer. Fickling versions up to and including 0.1.6 do not treat Python's cProfile module as unsafe. Because of this, a malicious pickle that uses cProfile.run() is classified as SUSPICIOUS instead of OVERTLY_MALICIOUS. If a user relies on Fickling's output to decide whether a pickle is safe to deserialize, this misclassification can lead them to execute attacker-controlled code on their system. This affects any workflow or product that uses Fickling as a security gate for pickle deserialization. This issue has been patched in version 0.1.7.","provenance":"source","from":"CVE.org"},"cvss":{"score":8.9,"severity":"HIGH","version":"4.0","vector":"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/E:P","provenance":"source","from":"CVE.org CNA"},"epss":{"score":0.00522,"percentile":0.44169,"provenance":"source"},"cwes":[{"id":"CWE-184","name":"Incomplete List of Disallowed Inputs"},{"id":"CWE-502","name":"Deserialization of Untrusted Data"}],"references":[{"url":"https://github.com/trailofbits/fickling/security/advisories/GHSA-p523-jq9w-64x9","tags":["x_refsource_CONFIRM"]},{"url":"https://github.com/trailofbits/fickling/commit/dc8ae12966edee27a78fe05c5745171a2b138d43","tags":["x_refsource_MISC"]},{"url":"https://github.com/trailofbits/fickling/releases/tag/v0.1.7","tags":["x_refsource_MISC"]}],"priority":{"score":15.1,"factors":[{"name":"EPSS percentile","points":8.83},{"name":"CVSS severity","points":6.23}]},"vendorSlug":"trailofbits","affectedVersions":[{"vendor":"trailofbits","product":"fickling","versions":["< 0.1.7"]}],"affected":[{"ecosystem":"PyPI","package":"fickling","vulnerableRanges":["<0.1.7"],"patched":["0.1.7"],"from":["GHSA-p523-jq9w-64x9","PYSEC-2026-1371"],"provenance":"source"}],"euvd":{"id":"EUVD-2026-1687","exploited":false,"provenance":"source"},"lineage":{"familyId":"fam-trailofbits-fickling-cve-2025-67747","parents":[{"from":"CVE-2025-67747","to":"CVE-2026-22607","relation":"related","confidence":"high","kind":"lineage","evidence":[{"kind":"osv-related","provenance":"source","id":"GHSA-p523-jq9w-64x9","via":"reference","url":"https://github.com/trailofbits/fickling/security/advisories/GHSA-565g-hwwr-4pp3"},{"kind":"osv-related","provenance":"source","id":"PYSEC-2026-1371","via":"reference","url":"https://github.com/trailofbits/fickling/security/advisories/GHSA-565g-hwwr-4pp3"}]},{"from":"CVE-2025-67748","to":"CVE-2026-22607","relation":"related","confidence":"high","kind":"lineage","evidence":[{"kind":"osv-related","provenance":"source","id":"GHSA-p523-jq9w-64x9","via":"reference","url":"https://github.com/trailofbits/fickling/security/advisories/GHSA-r7v6-mfhq-g3m2"},{"kind":"osv-related","provenance":"source","id":"PYSEC-2026-1371","via":"reference","url":"https://github.com/trailofbits/fickling/security/advisories/GHSA-r7v6-mfhq-g3m2"}]}],"children":[{"from":"CVE-2026-22607","to":"CVE-2026-14534","relation":"variant","confidence":"high","kind":"lineage","evidence":[{"kind":"text","provenance":"source","relation":"variant","quote":"This shares the same root cause as CVE-2026-22607 (cProfile), CVE-2025-67748 (pty), and CVE-2025-67747 (marshal/types).","from":"CVE.org","in":"CVE-2026-14534"}]}]}}