CVE-2019-15796: Debian Python-Apt

Medium severity, CVSS 4.7. EPSS: 0.5% chance of exploitation in the next 30 days.

Python-apt doesn't check if hashes are signed in `Version.fetch_binary()` and `Version.fetch_source()` of apt/package.py or in `_fetch_archives()` of apt/cache.py in version 1.9.3ubuntu2 and earlier. This allows downloads from unsigned repositories which shouldn't be allowed and has been fixed in verisions 1.9.5, 1.9.0ubuntu1.2, 1.6.5ubuntu0.1, 1.1.0~beta1ubuntu0.16.04.7, 0.9.3.5ubuntu3+esm2, and 0.8.3ubuntu7.5.

Affected products

• Debian Python-Apt: version 1.8.4 only
• Ubuntu Python-Apt: version 0.8.0 only; version 0.8.1 only; version 0.8.3 only; version 0.8.9.1 only; version 0.9.0 only; version 0.9.1 only; …

Published 2020-03-26. Last modified 2026-06-17.