{"id":"CVE-2019-12760","url":"https://www.cyber-defence.io/tools/cve/CVE-2019-12760","generatedAt":"2026-10-28T22:21:42.103Z","title":"A deserialization vulnerability exists in the way parso through 0.4.0 handles grammar parsing from the cache.","description":"A deserialization vulnerability exists in the way parso through 0.4.0 handles grammar parsing from the cache. Cache loading relies on pickle and, provided that an evil pickle can be written to a cache grammar file and that its parsing can be triggered, this flaw leads to Arbitrary Code Execution. NOTE: This is disputed because \"the cache directory is not under control of the attacker in any common configuration.","published":"2019-06-06T19:29:01.000Z","lastModified":"2026-06-17T02:15:24.000Z","status":"Modified","sourceIdentifier":"cve@mitre.org","cvss":{"version":"3.1","score":3.3,"severity":"LOW","vector":"CVSS:3.1/AV:N/AC:H/PR:H/UI:N/S:U/C:L/I:L/A:N"},"cwe":["CWE-502"],"affected":["parso project/parso"],"epss":{"score":0.01534,"percentile":0.74689,"date":"2026-10-27","history":[]},"kev":{"listed":false},"exploits":{"count":0,"verified":false,"firstPublished":null,"source":"Exploit-DB (https://gitlab.com/exploit-database/exploitdb)","entries":[]},"verdict":{"level":"low","text":"Lower severity and a low EPSS score (1.53%). Track it; it rarely justifies an emergency change on its own."},"changes":[],"references":[{"url":"https://gist.github.com/dhondta/f71ae7e5c4234f8edfd2f12503a5dcc7","tags":["Exploit","Third Party Advisory"],"source":"cve@mitre.org"},{"url":"https://github.com/davidhalter/parso/issues/75","source":"cve@mitre.org"},{"url":"https://gist.github.com/dhondta/f71ae7e5c4234f8edfd2f12503a5dcc7","tags":["Exploit","Third Party Advisory"],"source":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"https://github.com/davidhalter/parso/issues/75","source":"af854a3a-2127-422b-91ae-364da2661108"}],"sources":{"nvd":"https://nvd.nist.gov/vuln/detail/CVE-2019-12760","epss":"https://www.first.org/epss/","kev":"https://www.cisa.gov/known-exploited-vulnerabilities-catalog","exploitdb":"https://www.exploit-db.com/"},"licence":"CC BY 4.0 — link back to the CVE Explorer if you publish the results; upstream data remains subject to its own terms."}