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CVE-2013-4278

13
FAUCET Score

CVE-2013-4278 describes an access control bypass vulnerability in OpenStack Compute (Nova) Folsom, Grizzly, and Havana. This flaw allows authenticated users to boot arbitrary flavors by guessing the flavor ID, circumventing the os-flavor-access:is_public property. With a CVSS score of 3.5 (AV:N/AC:M/Au:S/C:P/I:N/A:N), it has a low severity, requiring network access and authentication, and potentially leading to partial confidentiality impact. There is no evidence of active exploitation, public exploit code (Metasploit, Nuclei, ExploitDB), or significant community discussion or media coverage for this vulnerability.

Impacted Technologies

VendorProductVersion(s)CPE
Range not provided by sourceCPE matchmatch criteria
cpe:2.3:a:openstack:compute:-:*:*:*:*:*:*:*

CVSS Data

CVSS version used by this source: 2.0

3.5LOW

AV:N/AC:M/Au:S/C:P/I:N/A:N

Confidentiality Impact
PARTIAL
Integrity Impact
NONE
Availability Impact
NONE
Access Vector
NETWORK
Access Complexity
MEDIUM
Authentication
SINGLE
Exploitability Score
6.8
Impact Score
2.9
CvssVersion
2.0

Exploit Intelligence

EPSS Score
1.50%
Probability of exploitation in next 30 days
EPSS Percentile
71.5%
Percentile rank of EPSS score among Peer Group
As of 2026-07-25
Model: v2026.06.15
This CVE's current EPSS score of 0.0150 is in the 77th percentile among its peer group of 1,637 CVEs.

Social Chatter

No social media mentions found for this CVE.

The average CVE in this peer group has 0.0 Twitter, 0.0 Reddit, 0.0 Bluesky, 0.0 Mastodon, and 0.1 GitHub mentions.

Media Mentions

No media coverage found for this CVE.

The average CVE in this peer group has 0.0 InfoSec Media, 0.0 Vendor Blog, and 0.0 Security Researcher mentions.

Remediation

Patch Available

Vendor Patches (1)

pippatch availablevia ghsa
Product: novaFixed in: 12.0.0a0

Vendor Advisories (2)

pipGHSA-43cm-73px-5v4mlow

OpenStack Compute (Nova) Resource limit circumvention in Nova private flavors

May 17, 2022
redhatCVE-2013-4278Moderate

OpenStack: Nova private flavors resource limit circumvention incomplete fix for CVE-2013-2256

Aug 20, 2013

References

lists.openstack.org / pipermail/openstack-announce/2013-August/000138.html
Patch
rhn.redhat.com / errata/RHSA-2013-1199.html
Vendor Advisory
bugs.launchpad.net / ossa/+bug/1212179