CVE-2013-4278

The "create an instance" API in OpenStack Compute (Nova) Folsom, Grizzly, and Havana does not properly enforce the os-flavor-access:is_public property, which allows remote authenticated users to boot arbitrary flavors by guessing the flavor id. NOTE: this issue is due to an incomplete fix for CVE-2013-2256.

Published: 2013-09-16 Last update: 2026-06-16 Assigner: [email protected] Source: [email protected]
NVD Status：Modified，CVE State: published
View at NVD, CVE.org, EUVD

CVE-2013-4278 is rated Moderate Risk (40.1/100): CVSS Low severity, with medium exploitation likelihood (EPSS 1.50%). EPSS rose +1.30% over the last day, indicating growing attacker interest. Review affected assets and schedule remediation.

Risk is dynamic; we continuously reassess and refresh what is shown on this page as upstream context changes.

Exploit prediction scoring system (EPSS) score for CVE-2013-4278

EPSS lead: Daily EPSS estimates relative likelihood of exploitation; percentile ranks this CVE among scored vulnerabilities (higher = more severe relative rank).

# Date Old EPSS score New EPSS score Delta (New - Old)
1 2026-06-15 0.20% 1.50% +1.30%
2 2025-03-30 0.63% 0.20% -0.43%
3 2025-03-29 — 0.63% —

Full EPSS history (6 records total)

Common vulnerability scoring system (CVSS) metrics for CVE-2013-4278

CVSS metrics for this CVE.

Base score Version Severity Vector Exploitability Impact Score source
3.5 2.0 LOW
AV:N/AC:M/Au:S/C:P/I:N/A:N Click to expand
Access vector (AV:N)
Can be exploited remotely over network reachability.
Access complexity (AC:M)
Exploitation needs some favorable conditions, but not exceptional ones.
Authentication (AU:S)
A single authentication is required.
Confidentiality impact (C:P)
Partial confidentiality impact.
Integrity impact (I:N)
No integrity impact.
Availability impact (A:N)
No availability impact.
 6.8 2.9 [email protected]

Weakness enumeration for CVE-2013-4278

GitHub Security Advisory for CVE-2013-4278

GHSA-43cm-73px-5v4m · Severity: low · Ecosystem: pip — OpenStack Compute (Nova) Resource limit circumvention in Nova private flavors

OS Trackers for CVE-2013-4278

vendor priority summary link
debian not yet assigned CVE-2013-4278 not yet assigned priority: Debian including 1 source packages (nova), 5 status rows across 5 suites (bookworm, bullseye, forky, sid, trixie): resolved 5. https://security-tracker.debian.org/tracker/CVE-2013-4278
redhat medium — https://access.redhat.com/security/cve/CVE-2013-4278
ubuntu medium CVE-2013-4278 medium priority: Ubuntu including 1 source packages (nova), 6 status rows across 6 suites (lucid, precise, quantal, raring, saucy, upstream): not-affected 3, DNE 1, needed 1, released 1. https://ubuntu.com/security/CVE-2013-4278

Affected software / configurations for CVE-2013-4278

Vendor Product Version Raw CPE
openstack compute — cpe:2.3:a:openstack:compute:-:*:*:*:*:*:*:*

References for CVE-2013-4278

cvelogic Threat Intelligence