# CVE-2019-6690: python3-gnupg: python-gnupg 0.4.3 allows context-dependent attackers to trick gnupg to decrypt other ciphertext than intended

CVE-2019-6690 is fixed in 2 products on 1 platform, first by python-gnupg 0.4.1-1ubuntu1.18.04.1, released March 20, 2019. It is not reported as exploited. Patch Radar priority: Routine.

- Web page: https://patchblox.com/security/cve/CVE-2019-6690
- Priority: Routine
- CVSS: n/a (Medium)
- EPSS: 0.0862
- CISA KEV: not listed
- Exploited (vendor report): no
- Publicly disclosed: no
- Published: Mar 20, 2019

## Description

python-gnupg 0.4.3 allows context-dependent attackers to trick gnupg to decrypt other ciphertext than intended. To perform the attack, the passphrase to gnupg must be controlled by the adversary and the ciphertext should be trusted. Related to a "CWE-20: Improper Input Validation" issue affecting the affect functionality component.

## Where it's fixed

| Platform | Product | Fixed in | Fix | Released |
|---|---|---|---|---|
| Linux | python-gnupg Ubuntu 18.04.6 LTS (bionic) | 0.4.1-1ubuntu1.18.04.1 | [python-gnupg 0.4.1-1ubuntu1.18.04.1](https://patchblox.com/security/data/fix/linux/ubuntu-bionic-python-gnupg-0.4.1-1ubuntu1.18.04.1.md) | Mar 20, 2019 |
| Linux | python3-gnupg Ubuntu 18.04.6 LTS (bionic) | 0.4.1-1ubuntu1.18.04.1 | [python3-gnupg 0.4.1-1ubuntu1.18.04.1](https://patchblox.com/security/data/fix/linux/ubuntu-bionic-python3-gnupg-0.4.1-1ubuntu1.18.04.1.md) | Mar 20, 2019 |

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Data as of 2026-11-07T18:46:35Z UTC. Source: Patchblox Patch Radar (https://patchblox.com/security/patch-radar). Patchblox finds out-of-date software on Windows, macOS and Linux and updates it through release rings: https://patchblox.com/demo

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