CVE-2019-12760
Deserialization vulnerability exists in parso
7.5
HIGH
CVSS 3.1
EPSS 0.67%
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.
How to fix CVE-2019-12760
To remediate CVE-2019-12760, upgrade the affected package to a fixed version below.
- —upgrade to 0.5.1-0.1 or later
- —no fix listed
- —upgrade to 0.5.0 or later
Is CVE-2019-12760 being exploited?
Low — EPSS is 0.7%, meaning exploitation activity has not been observed at scale.
Affected packages (3)
- from 0, < 0.5.1-0.1
- from 0, <= 0.4.0
- from 0, < 0.5.0
CVSS scores
| Source | Version | Severity | Vector |
|---|---|---|---|
| osv | CVSS 4.0 | — | CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:U |
| osv | CVSS 3.1 | HIGH7.5 | CVSS:3.0/AV:N/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H |