CVE catalog
CVE-2019-12760
parso: CVE-2019-12760
- Severity
- Medium · CVSS 5.3
CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:L - Published
- Source
- [NVD] · [CVE record]
- EPSS
- 1.53% · Oct 25, 2026
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.
Vulnerable and fixed packages
Distribution-reported package versions and fixes. These do not depend on matching against the OpenFactory package catalog.
| Distribution | Package | Release | Version | Status |
|---|---|---|---|---|
| Debian | parso | sid | 0.8.7-1 | fixed |
| Debian | parso | forky | 0.8.7-1 | fixed |
| Debian | parso | trixie | 0.8.4-1 | fixed |
| Debian | parso | bookworm | 0.8.3-1 | fixed |
Fixed-version evidence
| Distribution | Package | Type | Release | Fixed version | Urgency | Origin | Bugs |
|---|---|---|---|---|---|---|---|
| Debian | parso | source | sid | 0.5.1-0.1 | unimportant | Not reported | [930356] |
| Debian | parso | source | forky | 0.5.1-0.1 | unimportant | Not reported | [930356] |
| Debian | parso | source | trixie | 0.5.1-0.1 | unimportant | Not reported | [930356] |
| Debian | parso | source | bookworm | 0.5.1-0.1 | unimportant | Not reported | [930356] |
OpenFactory catalog packages
[Debian 12 (Bookworm)]
- [python3-parso]Fixed
Source package: [parso]
Details (2)
0.8.3-1· all · bookwormFixed · Fixed:
0.5.1-0.1dsa · parso · debian · bookworm; dsa · parso · debian · 12
0.8.3-1· all · bookwormFixed · Fixed:
0.5.1-0.1dsa · parso · debian · bookworm; dsa · parso · debian · 12
- [python-parso-doc]Fixed
Source package: [parso]
Details (2)
0.8.3-1· all · bookwormFixed · Fixed:
0.5.1-0.1dsa · parso · debian · bookworm; dsa · parso · debian · 12
0.8.3-1· all · bookwormFixed · Fixed:
0.5.1-0.1dsa · parso · debian · bookworm; dsa · parso · debian · 12
[Debian 13 (Trixie)]
- [python3-parso]Fixed
Source package: [parso]
Details (2)
0.8.4-1· all · trixieFixed · Fixed:
0.5.1-0.1dsa · parso · debian · 13
0.8.4-1· all · trixieFixed · Fixed:
0.5.1-0.1dsa · parso · debian · 13
- [python-parso-doc]Fixed
Source package: [parso]
Details (2)
0.8.4-1· all · trixieFixed · Fixed:
0.5.1-0.1dsa · parso · debian · 13
0.8.4-1· all · trixieFixed · Fixed:
0.5.1-0.1dsa · parso · debian · 13
Observed:
References
- [https://osv.dev/vulnerability/DEBIAN-CVE-2019-12760]
- [https://osv.dev/vulnerability/UBUNTU-CVE-2019-12760]
- [https://security-tracker.debian.org/tracker/CVE-2019-12760]
- [https://security.access.redhat.com/data/csaf/v2/vex/2019/cve-2019-12760.json]
[Debian Security Tracker] · [FIRST EPSS] · [OSV Package Vulnerability Database] · [Red Hat security advisories and VEX]