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CVE-2015-1852· NVD / CVE Program· CNA redhat

The s3_token middleware in OpenStack keystonemiddleware before 1.6.0 and python-keystoneclient before 1.4.0 disables certification verificat

The s3_token middleware in OpenStack keystonemiddleware before 1.6.0 and python-keystoneclient before 1.4.0 disables certification verification when the "insecure" option is set in a paste configuration (paste.ini) file regardless of the value, which allows remote attackers to conduct man-in-the-middle attacks via a crafted certificate, a different vulnerability than CVE-2014-7144.

MediumCVSS 4.3 · v2.0—No exploit Fix available
Published
Apr 17, 2015
Updated
Jun 16, 2026
EPSS
2.6% · 85th percentile
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Report tools

JSON

Action score

18

Monitor

Low priority for now.

CVSS
17 / 40 · 4.3 / 10
CISA KEV
0 / 30 · Not listed
EPSS
1 / 30 · 2.6%

Affected systems

VendorProduct
openstackkeystonemiddleware
openstackpython-keystoneclient
canonicalubuntu linux

Affected versions

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

  • canonical ubuntu linux14.04
  • canonical ubuntu linux15.04
  • openstack keystonemiddlewareup to 1.5.0 inclusive
  • openstack python-keystoneclientup to 1.3.0 inclusive

Package-level exposure

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

EcosystemPackageAffected rangeFix
Debian:12python-keystoneclientbefore 1:1.3.0-21:1.3.0-2
Debian:12python-keystonemiddlewarebefore 1.5.0-21.5.0-2
openSUSE:Tumbleweedpython-keystonemiddlewarebefore 4.9.0-1.34.9.0-1.3
PyPIkeystonemiddlewarebefore 1.6.01.6.0
PyPIkeystonemiddlewarebefore 1.6.01.6.0
PyPIpython-keystoneclientbefore 1.4.01.4.0
PyPIpython-keystoneclientbefore 1.4.01.4.0
Red Hat:openstack:5::el6python-keystoneclientbefore 1:0.9.0-6.el6ost1:0.9.0-6.el6ost
Red Hat:openstack:5::el6python-keystoneclient-docbefore 1:0.9.0-6.el6ost1:0.9.0-6.el6ost
Red Hat:openstack:5::el7python-keystoneclientbefore 1:0.9.0-6.el7ost1:0.9.0-6.el7ost
Red Hat:openstack:5::el7python-keystoneclient-docbefore 1:0.9.0-6.el7ost1:0.9.0-6.el7ost
Red Hat:openstack:6::el7python-keystoneclientbefore 1:0.11.1-2.el7ost1:0.11.1-2.el7ost
Red Hat:openstack:6::el7python-keystoneclient-docbefore 1:0.11.1-2.el7ost1:0.11.1-2.el7ost
Red Hat:openstack:6::el7python-keystonemiddlewarebefore 0:1.3.2-1.el7ost0:1.3.2-1.el7ost
Red Hat:openstack:6::el7python-keystonemiddleware-docbefore 0:1.3.2-1.el7ost0:1.3.2-1.el7ost
SUSE:Cloud Compute Node for SUSE Linux Enterprise 12 5python-glanceclientbefore 0.15.0-3.10.15.0-3.1
SUSE:Cloud Compute Node for SUSE Linux Enterprise 12 5python-keystoneclientbefore 1.0.0-16.11.0.0-16.1
SUSE:Cloud Compute Node for SUSE Linux Enterprise 12 5python-keystoneclientbefore 1.0.0-19.11.0.0-19.1
SUSE:Cloud Compute Node for SUSE Linux Enterprise 12 5python-keystonemiddlewarebefore 1.2.0-4.11.2.0-4.1
SUSE:Cloud Compute Node for SUSE Linux Enterprise 12 5python-novaclientbefore 2.20.0-6.12.20.0-6.1
SUSE:Cloud Compute Node for SUSE Linux Enterprise 12 5python-swiftclientbefore 2.3.1-3.12.3.1-3.1
SUSE:OpenStack Cloud 5python-glanceclientbefore 0.15.0-9.20.15.0-9.2
SUSE:OpenStack Cloud 5python-keystoneclientbefore 1.0.0-11.11.0.0-11.1
SUSE:OpenStack Cloud 5python-keystonemiddlewarebefore 1.2.0-11.21.2.0-11.2

+2

Other highest-scoring records for the same primary product.

  • CVE-2026-22797An issue was discovered in OpenStack keystonemiddleware 10.5 through 10.7 before 10.7.2, 10.8 and 10.9 before 10.9.1, and 10.10 through 10.1
    39Monitor
  • CVE-2015-7546The identity service in OpenStack Identity (Keystone) before 2015.1.3 (Kilo) and 8.0.x before 8.0.2 (Liberty) and keystonemiddleware (former
    31Monitor
  • CVE-2014-7144OpenStack keystonemiddleware (formerly python-keystoneclient) 0.x before 0.11.0 and 1.x before 1.2.0 disables certification verification whe
    18Monitor

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:python-keystoneclient1:1.3.0-2 · Debian:12Package registry (OSV)
Debian:python-keystonemiddleware1.5.0-2 · Debian:12Package registry (OSV)
openSUSE:python-keystonemiddleware4.9.0-1.3 · openSUSE:TumbleweedPackage registry (OSV)
PyPI:keystonemiddleware1.6.0Package registry (OSV)
PyPI:python-keystoneclient1.4.0Package registry (OSV)
Red Hat:python-keystoneclient1:0.11.1-2.el7ost · Red Hat:openstack:6::el7Package registry (OSV)
Red Hat:python-keystoneclient-doc1:0.11.1-2.el7ost · Red Hat:openstack:6::el7Package registry (OSV)
Red Hat:python-keystonemiddleware0:1.3.2-1.el7ost · Red Hat:openstack:6::el7Package registry (OSV)
Red Hat:python-keystonemiddleware-doc0:1.3.2-1.el7ost · Red Hat:openstack:6::el7Package registry (OSV)
SUSE:python-glanceclient0.15.0-9.2 · SUSE:OpenStack Cloud 5Package registry (OSV)
SUSE:python-keystoneclient1.0.0-16.1 · SUSE:Cloud Compute Node for SUSE Linux Enterprise 12 5Package registry (OSV)
SUSE:python-keystonemiddleware1.2.0-11.2 · SUSE:OpenStack Cloud 5Package registry (OSV)
SUSE:python-novaclient2.20.0-9.2 · SUSE:OpenStack Cloud 5Package registry (OSV)
SUSE:python-openstackclient0.4.1-9.2 · SUSE:OpenStack Cloud 5Package registry (OSV)
SUSE:python-swiftclient2.3.1-3.1 · SUSE:Cloud Compute Node for SUSE Linux Enterprise 12 5Package 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.

No commit or PR link among the references.

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

    If successful

    Confidentiality
    none
    Integrity
    P · data or configuration can be modified
    Availability
    none
    Attack complexity
    M
    Confidentiality impact
    None
    Integrity impact
    P
    Availability impact
    None

    Weakness class (CWE)

    CWE-17 · DEPRECATED: Code

    CVSS vector

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

    nvd-primary

    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.

    Noroxi analysis

    No Noroxi analysis for this record yet

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    Change log

    1. Fix✗ → ✓

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    References

    All records