PYSEC-2026-884

    Dashboard / Vulnerabilities / PYSEC-2026-884

    PYSEC-2026-884

    Published: 6 Jul 2026Last Modified: 7 Jul 2026

    Summary: OpenStack Compute (Nova) Exposure of Sensitive Information to an Unauthorized Actor vulnerability

    Details: api/metadata/handler.py in OpenStack Compute (Nova) before 2013.2.4, 2014.x before 2014.1.2, and Juno before Juno-2, when proxying metadata requests through Neutron, makes it easier for remote attackers to guess instance ID signatures via a brute-force attack that relies on timing differences in responses to instance metadata requests.

    References: https://nvd.nist.gov/vuln/detail/CVE-2014-3517, https://access.redhat.com/errata/RHSA-2014:0940, https://access.redhat.com/errata/RHSA-2014:1084, https://access.redhat.com/security/cve/CVE-2014-3517, https://bugs.launchpad.net/nova/+bug/1325128, https://bugzilla.redhat.com/show_bug.cgi?id=1112499, https://opendev.org/openstack/nova, http://www.openwall.com/lists/oss-security/2014/07/17/2, https://pypi.org/project/nova, https://github.com/advisories/GHSA-xjmj-p278-4jp5

    Affected packages

    Package

    Name: nova

    Purl: pkg:pypi/nova

    Affected ranges

    Type: ECOSYSTEM

    Events:

    Introduced- 0
    Fixed -2013.2.4

    Affected versions

    15.1.5

    Common Vulnerability Scoring System

    Attack Vector
    Network
    Adjacent
    Local
    Physical
    Privileges Required
    None
    Low
    High
    User Interaction
    None
    Required
    Scope
    Unchanged
    Changed
    Confidentiality
    None
    Low
    High
    Integrity
    None
    Low
    High
    Availability
    None
    Low
    High
    PYSEC-2026-884 | CVE-DB