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CVE-2013-2256

17
FAUCET Score

CVE-2013-2256 is a vulnerability in OpenStack Compute (Nova) versions prior to 2013.1.3 and Havana before havana-2. It stems from improper enforcement of the os-flavor-access:is_public property, allowing authenticated users to access sensitive flavor properties and boot arbitrary flavors by guessing flavor IDs. With a CVSS score of 6.0, this medium-severity vulnerability has a network attack vector, moderate attack complexity, and results in partial confidentiality, integrity, and availability impacts. There is no evidence of active exploitation, public exploit code (Metasploit, Nuclei, ExploitDB), or significant community discussion or media coverage.

Impacted Technologies

VendorProductVersion(s)CPE
>= 2013.1, < 2013.1.3CPE matchmatch criteria
cpe:2.3:a:openstack:nova:*:*:*:*:*:*:*:*
2013.2CPE matchmatch criteria
cpe:2.3:a:openstack:nova:2013.2:milestone1:*:*:*:*:*:*

CVSS Data

CVSS version used by this source: 2.0

6.0MEDIUM

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

Confidentiality Impact
PARTIAL
Integrity Impact
PARTIAL
Availability Impact
PARTIAL
Access Vector
NETWORK
Access Complexity
MEDIUM
Authentication
SINGLE
Exploitability Score
6.8
Impact Score
6.4
CvssVersion
2.0

Exploit Intelligence

EPSS Score
1.83%
Probability of exploitation in next 30 days
EPSS Percentile
76.6%
Percentile rank of EPSS score among Peer Group
As of 2026-07-27
Model: v2026.06.15
This CVE's current EPSS score of 0.0183 is in the 82nd percentile among its peer group of 1,425 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, 0.1 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 0.1 InfoSec Media, 0.0 Vendor Blog, and 0.0 Security Researcher mentions.

Remediation

Patch Available

Vendor Patches (3)

pippatch availablevia ghsa
Product: novaFixed in: 2013.1.3
redhatpatch availablevia redhat_api
Product: OpenStack 3 for RHEL 6Fixed in: openstack-nova-0:2013.1.3-3.el6ost
View patch
redhatno patchvia redhat_api
Product: Red Hat OpenStack Platform 4Fixed in: openstack-nova

Vendor Advisories (2)

pipGHSA-5mj6-643f-2g85medium

OpenStack Compute (Nova) allows remote authenticated users to obtain sensitive information

May 14, 2022
redhatCVE-2013-2256Moderate

OpenStack: Nova private flavors resource limit circumvention

Aug 6, 2013

References

rhn.redhat.com / errata/RHSA-2013-1199.html
Third Party Advisory
bugs.launchpad.net / nova/+bug/1194093
ExploitThird Party Advisory
seclists.org / oss-sec/2013/q3/281
Mailing ListPatchThird Party Advisory