{"cve":"CVE-2019-15796","nvd":{"published":"2020-03-26T13:15:12.843","modified":"2026-06-17T02:21:05.653","status":"Modified","description":"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.","cvss_v4":null,"cvss_v3":{"version":"3.1","vector":"CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:C/C:L/I:L/A:N","score":4.7},"cwes":["CWE-347","CWE-287"],"references":["https://usn.ubuntu.com/4247-1/","https://usn.ubuntu.com/4247-3/","https://usn.ubuntu.com/4247-1/","https://usn.ubuntu.com/4247-3/"],"products":["debian:python-apt","ubuntu:python-apt"],"source":"nvd","synced_at":"2026-10-19T21:03:08.679916934+00:00"},"epss":{"cve":"CVE-2019-15796","score":0.00509,"percentile":0.43457,"date":"2026-10-31"},"kev":null,"osv":[{"id":"GHSA-pj65-3pf6-c5q4","url":"https://osv.dev/vulnerability/GHSA-pj65-3pf6-c5q4","summary":"python-apt Does Not Check Hash Signature","modified":"2023-11-08T04:01:15.371344Z","packages":[{"ecosystem":"PyPI","name":"python-apt","purl":"pkg:pypi/python-apt","ranges":["<0.8.3ubuntu7.5"],"fixed":["0.8.3ubuntu7.5"]},{"ecosystem":"PyPI","name":"python-apt","purl":"pkg:pypi/python-apt","ranges":[">=0.9.0 <0.9.3.5ubuntu3"],"fixed":["0.9.3.5ubuntu3"]},{"ecosystem":"PyPI","name":"python-apt","purl":"pkg:pypi/python-apt","ranges":[">=1.2.0 <1.6.5ubuntu0.1"],"fixed":["1.6.5ubuntu0.1"]},{"ecosystem":"PyPI","name":"python-apt","purl":"pkg:pypi/python-apt","ranges":[">=1.7.0 <1.9.0ubuntu1.2"],"fixed":["1.9.0ubuntu1.2"]},{"ecosystem":"PyPI","name":"python-apt","purl":"pkg:pypi/python-apt","ranges":[">=1.9.1 <1.9.5"],"fixed":["1.9.5"]}]}],"attribution":["This product uses the NVD API but is not endorsed or certified by the NVD.","EPSS scores: FIRST Exploit Prediction Scoring System, https://www.first.org/epss","Known exploited vulnerabilities: CISA Known Exploited Vulnerabilities Catalog, https://www.cisa.gov/known-exploited-vulnerabilities-catalog","Package advisories: OSV (https://osv.dev), from the GitHub Advisory Database, PyPA, Go, RustSec and other ecosystem databases, under CC-BY 4.0 or CC0","CVE records: the CVE Program's CVE List (https://www.cve.org), under its terms of use (https://www.cve.org/Legal/TermsOfUse). CVE is a registered trademark of The MITRE Corporation; this product is not affiliated with the CVE Program."]}