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: 2019-06-06
Score: 3.3 Low
EPSS: < 1% Very Low
KEV: No
Impact: n/a
Action: n/a
AI Analysis

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Remediation

No vendor fix or workaround currently provided.

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Tracking

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Advisories
Source ID Title
Github GHSA Github GHSA GHSA-22mf-97vh-x8rw Deserialization vulnerability exists in parso
History

Sat, 21 Feb 2026 08:15:00 +0000

Type Values Removed Values Added
Metrics ssvc

{'options': {'Automatable': 'no', 'Exploitation': 'poc', 'Technical Impact': 'partial'}, 'version': '2.0.3'}


Subscriptions

Parso Project Parso
cve-icon MITRE

Status: PUBLISHED

Assigner: mitre

Published:

Updated: 2024-08-04T23:32:54.763Z

Reserved: 2019-06-06T00:00:00.000Z

Link: CVE-2019-12760

cve-icon Vulnrichment

Updated: 2024-08-04T23:32:54.763Z

cve-icon NVD

Status : Modified

Published: 2019-06-06T19:29:00.500

Modified: 2024-11-21T04:23:31.013

Link: CVE-2019-12760

cve-icon Redhat

No data.

cve-icon OpenCVE Enrichment

No data.

Weaknesses