CVE-2019-12760
Low
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.
SeverityLow
CVSS3.3
Exploit probability—
ProductParso
PublishedJun 6, 2019
First seenJun 6, 2019
How to fix
Update
- parso0.5.0 or later
Affected products
| Product | Affected versions | Fixed in |
|---|---|---|
| parso_project parso | v ≤ 0.4.0 | — |
| parsoPyPI | v ≤ 0.4.0, v < 0.5.0 | 0.5.0 |
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