CVE-2019-6690
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...
- Published
- Mar 17, 2019
- Updated
- Aug 4, 2024
- Assigning CNA
- mitre
- Evidence observed
- Aug 8, 2026
Primary CVSS
nvd · CVSS 3.1
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:NLow · next 30 days
- Percentile
- 95.0%
- Model date
- Oct 16, 2026
EPSS is a statistical estimate, not a certainty or a measure of impact. Combine it with CVSS, KEV status, exposure and your environment.
Summary
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.
Sources
It is a simple PoC of Improper Input Validation in python-gnupg 0.4.3 (CVE-2019-6690).
Proof-of-concept exploit for CVE-2019-6690, demonstrating input validation bypass in python-gnupg symmetric encryption via newline injection in passphrase.
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