{"id":"CVE-2011-4076","aliases":["GHSA-vcmv-6rxx-fh7r","PYSEC-2026-691"],"url":"https://o3.security/vulnerability/CVE-2011-4076","summary":"OpenStack Nova Exposure of Sensitive Information to an Unauthorized Actor","details":"OpenStack Nova before 2012.1 allows someone with access to an EC2_ACCESS_KEY (equivalent to a username) to obtain the EC2_SECRET_KEY (equivalent to a password). Exposing the EC2_ACCESS_KEY via http or tools that allow man-in-the-middle over https could allow an attacker to easily obtain the EC2_SECRET_KEY. An attacker could also presumably brute force values for EC2_ACCESS_KEY.","published":"2019-11-26T04:15:11Z","modified":"2026-07-06T08:11:25.842143637Z","cvss":{"score":5.9,"severity":"MEDIUM","vector":"CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:N/A:N"},"epss":{"score":0.01446,"percentile":0.70882,"asOf":"2026-08-23"},"cisaKev":null,"exploitsKnown":2,"affectedPackages":[{"ecosystem":"PyPI","name":"nova","fixedVersion":"12.0.0a0"}],"fix":null,"references":[{"type":"ADVISORY","url":"https://access.redhat.com/security/cve/cve-2011-4076"},{"type":"ADVISORY","url":"https://bugs.launchpad.net/nova/+bug/868360"},{"type":"ADVISORY","url":"https://bugzilla.redhat.com/show_bug.cgi?id=CVE-2011-4076"},{"type":"ADVISORY","url":"https://security-tracker.debian.org/tracker/CVE-2011-4076"},{"type":"ADVISORY","url":"https://www.openwall.com/lists/oss-security/2011/10/25/4"},{"type":"ARTICLE","url":"https://www.openwall.com/lists/oss-security/2011/10/25/4"},{"type":"EVIDENCE","url":"https://bugs.launchpad.net/nova/+bug/868360"},{"type":"EVIDENCE","url":"https://bugzilla.redhat.com/show_bug.cgi?id=CVE-2011-4076"},{"type":"FIX","url":"https://bugs.launchpad.net/nova/+bug/868360"},{"type":"FIX","url":"https://security-tracker.debian.org/tracker/CVE-2011-4076"},{"type":"FIX","url":"https://www.openwall.com/lists/oss-security/2011/10/25/4"},{"type":"REPORT","url":"https://bugs.launchpad.net/nova/+bug/868360"},{"type":"REPORT","url":"https://bugzilla.redhat.com/show_bug.cgi?id=CVE-2011-4076"}],"provenance":{"sources":["OSV.dev","FIRST.org (EPSS)"],"lastVerified":"2026-07-06T08:11:25.842143637Z"}}