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CVE-2013-0270· NVD / CVE Program· CNA redhat

Keystone: openstack keystone: denial of service via large http request with long tenant name

Noroxi assessment

Priority: Monitor (action score 27/100)

  • The sources we track (CISA KEV, Exploit-DB, Metasploit, Nuclei, GitHub) show no public exploit code or exploitation in the wild.
  • Probability of exploitation in the next 30 days: 3.1% (FIRST EPSS); higher than 87.6% of all records.
  • Anyone who can reach it over the internet can trigger it. A low-privileged account is enough. No user action is required. No special conditions are required; it is repeatable.
  • Fixed version: keystone (Debian:12) 2013.1.1-2; keystone (PyPI) 8.0.0a0; openstack-keystone (Red Hat:openstack:2::el6) 0:2012.2.3-7.el6ost.

Low priority for now. Upgrade to keystone (Debian:12) 2013.1.1-2; keystone (PyPI) 8.0.0a0; openstack-keystone (Red Hat:openstack:2::el6) 0:2012.2.3-7.el6ost or later.

Generated automatically from the record's data: CVSS (NVD and CNA), CISA KEV and SSVC, FIRST EPSS, exploit sources, fixed versions. How we calculate it

A flaw was found in OpenStack Keystone. A remote attacker could exploit this vulnerability by sending a large HTTP request, specifically by providing a long tenant name when requesting a token. This could lead to a denial of service, consuming excessive CPU and memory resources on the affected system.

MediumCVSS 6.5 · v3.1—No exploit Fix available
Published
Apr 12, 2013
Updated
Jul 30, 2026
EPSS
3.2% · 88th percentile

Report tools

JSON

Action score

27

Monitor

Low priority for now.

CVSS
26 / 40 · 6.5 / 10
CISA KEV
0 / 30 · Not listed
EPSS
1 / 30 · 3.2%

CNA vs NVD score

NVD
—
CNA · redhat
6.5
NVD has not scored this yet; the score shown is the CNA’s.

The score given by the assigning authority versus NVD’s independent score. A gap means the severity is contested.

Get told when this record changes

  • Not in KEV: no record of exploitation in the wild
  • No public exploit code on record
  • A fix has been released

If any of these changes, we'll tell you in the daily email digest.

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When you'll hear from us

  • when it enters CISA KEV
  • when exploit code appears or is weaponized
  • when the record is updated (including a fixed version)
  • when EPSS rises 20 points in a week

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Noroxi analysis

What does it mean in your environment?

The assessment above is generated automatically from the record's data; it doesn't know your environment. Our team verifies on your systems whether this vulnerability is actually exploitable and which mitigation is enough.

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Affected systems

Is your version affected?

Pick the product and type the version you run. It's compared with this record's version ranges in your browser; the version isn't sent anywhere.

VendorProduct
openstackkeystone

Affected versions

NVD version ranges (for catalog products). Add the product to your stack with a version and matching uses these.

  • openstack keystone2012.1 and later · up to 2012.1.3 inclusive
  • openstack keystone2012.2 and later · up to 2012.2.4 inclusive
  • openstack keystone2013.1

Versions reported by the vendor

Affected version ranges reported by the assigning authority (redhat). Independent of NVD's CPE analysis and usually ahead of it.

  • Red Hat OpenStack Folsom for RHEL 6

    • 0:2012.2.3-7.el6ost and laternot affected · rpm

  • Red Hat Red Hat OpenStack Platform 13 (Queens)

    • all versionsaffected

  • Red Hat Red Hat OpenStack Platform 16.2

    • all versionsaffected
    • all versionsaffected

  • Red Hat Red Hat OpenStack Platform 17.1

    • all versionsaffected
    • all versionsaffected

  • Red Hat Red Hat OpenStack Platform 18.0

    • all versionsaffected
    • all versionsaffected

Package-level exposure

OSV and GitHub Advisory data: ecosystem, package and range. SBOM matching uses this table.

EcosystemPackageAffected rangeFix
Debian:12keystonebefore 2013.1.1-22013.1.1-2
PyPIkeystonebefore 8.0.0a08.0.0a0
Red Hat:openstack:2::el6openstack-keystonebefore 0:2012.2.3-7.el6ost0:2012.2.3-7.el6ost
Red Hat:openstack:2::el6openstack-keystone-docbefore 0:2012.2.3-7.el6ost0:2012.2.3-7.el6ost
Red Hat:openstack:2::el6python-keystonebefore 0:2012.2.3-7.el6ost0:2012.2.3-7.el6ost

Same product

openstack: all records

Other highest-scoring records for the same primary product.

  • CVE-2020-12691An issue was discovered in OpenStack Keystone before 15.0.1, and 16.0.0.
    36Monitor
  • CVE-2020-12690An issue was discovered in OpenStack Keystone before 15.0.1, and 16.0.0.
    36Monitor
  • CVE-2019-19687OpenStack Keystone 15.0.0 and 16.0.0 is affected by Data Leakage in the list credentials API.
    36Monitor
  • CVE-2026-43000An issue was discovered in OpenStack Keystone before 29.0.2.
    35Monitor
  • CVE-2026-42999An issue was discovered in OpenStack Keystone before 29.0.2.
    35Monitor
  • CVE-2026-42998An issue was discovered in OpenStack Keystone before 29.0.2.
    35Monitor

Remediation

Which version to upgrade to

Fix versions compiled from the vendor, package registries and Microsoft. Verify the vendor's note before upgrading.

Product / packageFixed versionSource
debian:keystone2013.1.1-2 · Debian:12Package registry (OSV)
PyPI:keystone8.0.0a0Package registry (OSV)
red hat:openstack-keystone0:2012.2.3-7.el6ost · Red Hat:openstack:2::el6Package registry (OSV)
red hat:openstack-keystone-doc0:2012.2.3-7.el6ost · Red Hat:openstack:2::el6Package registry (OSV)
red hat:python-keystone0:2012.2.3-7.el6ost · Red Hat:openstack:2::el6Package registry (OSV)

Exploit status

No known public exploit

No public exploit has been observed yet. That doesn't mean you're safe, only that the bar is a little higher.

Research context

For pentesters and researchers: attack profile, score disagreement, timeline, patch commits, credits, variant and chain candidates, bug bounty scope. All derived from existing data; no exploit code.

Timeline

From publication to today: proof of concept, Metasploit module, CISA KEV and fix record. Dates are as reported by the sources.

No dated events beyond publication.

EPSS, last 120 days

FIRST EPSS daily score; only changes of 0.01 or more are recorded (step chart).

Patch and commit links

Commit, PR and diff links among the references. A starting point for patch-diffing and variant hunting; fixes, not exploits.

Credits

All researchers

Finders, reporters and analysts named in the CNA record. Click a name for that researcher’s other records.

No credits in the CNA record.

Variant candidates

Same product, same weakness class, within 18 months. If the patch missed the root cause, the sibling bug is here.

No nightly-computed relations.

Chain candidates

An authentication bypass and a privilege-requiring bug in the same product, published close together: combined they may become an unauthenticated path.

—

Bug bounty scope

No known public program.

Source: bounty-targets-data (public HackerOne, Bugcrowd, Intigriti, YesWeHack listings).

Technical details

Attack conditions

  • Anyone who can reach it over the internet can trigger it.
  • A low-privileged account is enough.
  • No user action is required.
  • No special conditions are required; it is repeatable.

If successful

Confidentiality
none
Integrity
none
Availability
high · the service can be disrupted
Attack vector
Network
Attack complexity
Low
Privileges required
Low
User interaction
None
Scope
Unchanged
Confidentiality impact
None
Integrity impact
None
Availability impact
High

Weakness class (CWE)

CWE-1284 · Improper Validation of Specified Quantity in Input

CVSS vector

CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H

nvd-secondary

Attack context

MITRE CAPEC attack patterns and ATT&CK techniques for this weakness class (CWE). A starting point for detection rules and threat hunting.

MITRE has no CAPEC/ATT&CK mapping for this CWE.

Change log

  1. Fix✗ → ✓

For records you follow, these changes also arrive as notifications. →

References

Show all references (7 more)

Vendor advisories and official records. Exploit/PoC links are deliberately left out.

All records