Low severity3.3NVD Advisory· Published Jun 6, 2019· Updated Jun 17, 2026
CVE-2019-12760
CVE-2019-12760
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.
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Affected packages
Versions sourced from the GitHub Security Advisory.
| Package | Affected versions | Patched versions |
|---|---|---|
parsoPyPI | <= 0.4.0 | — |
Affected products
3- parso/parsodescription
Patches
Vulnerability mechanics
References
5- gist.github.com/dhondta/f71ae7e5c4234f8edfd2f12503a5dcc7nvdExploitThird Party AdvisoryWEB
- github.com/advisories/GHSA-22mf-97vh-x8rwghsaADVISORY
- nvd.nist.gov/vuln/detail/CVE-2019-12760ghsaADVISORY
- github.com/davidhalter/parso/issues/75nvdWEB
- github.com/pypa/advisory-database/tree/main/vulns/parso/PYSEC-2019-109.yamlghsaWEB
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