CVE-2019-12760

LowCVSS 3.3/10Last modified Jun 17, 2026

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.

Metrics

CVSS 3.1 3.3/10CVSS:3.1/AV:N/AC:H/PR:H/UI:N/S:U/C:L/I:L/A:N

Weakness enumeration

CWE-502

Affected software

No affected versions have been published.

Timeline

Published: Jun 6, 2019
Last modified: Jun 17, 2026
NVD status: Modified

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