CVE-2013-2255
OpenStack Keystone and other components vulnerable to Improper Certificate Validation
CVE-2013-2255 is a medium vulnerability (CVSS 5.9) in Openstack Compute, published November 1, 2019. No source lists public exploit code. EPSS puts the chance of exploitation in the next 30 days at 0.97%, the 61st percentile. Fixed in python-keystoneclient 0.4.0.
HTTPSConnections in OpenStack Keystone 2013, OpenStack Compute 2013.1, and possibly other OpenStack components, fail to validate server-side SSL certificates.
Attack profile
How easy it is to exploit
- Attack vector
- Network
- Complexity
- High
- Privileges needed
- None
- User interaction
- None
What an attacker can affect
- Confidentiality
- None
- Integrity
- High
- Availability
- None
Exploit likelihood
What each source reports
NVD Score used
HTTPSConnections in OpenStack Keystone 2013, OpenStack Compute 2013.1, and possibly other OpenStack components, fail to validate server-side SSL certificates.
- Record
CVE-2013-2255- CVSS 3.1
- 5.9 Medium
CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:H/A:N - CVSS 2.0
- 4.3 Medium
AV:N/AC:M/Au:N/C:N/I:P/A:N - Weakness
- CWE-295
- Updated
- 2026-11-02
CVE List No score
HTTPSConnections in OpenStack Keystone 2013, OpenStack Compute 2013.1, and possibly other OpenStack components, fail to validate server-side SSL certificates.
- Record
CVE-2013-2255- Updated
- 2026-11-02
EUVDEUVD-2022-4974 No score
HTTPSConnections in OpenStack Keystone 2013, OpenStack Compute 2013.1, and possibly other OpenStack components, fail to validate server-side SSL certificates.
- Record
EUVD-2022-4974- Updated
- 2026-11-03
GitHub AdvisoriesGHSA-qh2x-hpf9-cf2g
OpenStack Keystone and other components vulnerable to Improper Certificate Validation
HTTPSConnections in OpenStack Keystone 2013, OpenStack Compute 2013.1, and possibly other OpenStack components, fail to validate server-side SSL certificates.
- Record
GHSA-qh2x-hpf9-cf2g- CVSS 3.1
- 5.9 Medium
CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:H/A:N - Weakness
- CWE-295
- Updated
- 2026-11-02
OSV
HTTPSConnections in OpenStack Keystone 2013, OpenStack Compute 2013.1, and possibly other OpenStack components, fail to validate server-side SSL certificates.
- Record
CVE-2013-2255- CVSS 3.1
- 5.9 Medium
CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:H/A:N - Updated
- 2026-11-02
OSVDEBIAN-CVE-2013-2255
HTTPSConnections in OpenStack Keystone 2013, OpenStack Compute 2013.1, and possibly other OpenStack components, fail to validate server-side SSL certificates.
- Record
DEBIAN-CVE-2013-2255- CVSS 3.1
- 5.9 Medium
CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:H/A:N - Updated
- 2026-11-02
Show 5 moreShow less
OSVGHSA-qh2x-hpf9-cf2g
OpenStack Keystone and other components vulnerable to Improper Certificate Validation
HTTPSConnections in OpenStack Keystone 2013, OpenStack Compute 2013.1, and possibly other OpenStack components, fail to validate server-side SSL certificates.
- Record
GHSA-qh2x-hpf9-cf2g- CVSS 3.1
- 5.9 Medium
CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:H/A:N - Weakness
- CWE-295
- Updated
- 2026-11-02
OSVPYSEC-2026-2413
OpenStack Keystone and other components vulnerable to Improper Certificate Validation
HTTPSConnections in OpenStack Keystone 2013, OpenStack Compute 2013.1, and possibly other OpenStack components, fail to validate server-side SSL certificates.
- Record
PYSEC-2026-2413- CVSS 3.1
- 5.9 Medium
CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:H/A:N - Updated
- 2026-11-02
OSVPYSEC-2026-2677
OpenStack Keystone and other components vulnerable to Improper Certificate Validation
HTTPSConnections in OpenStack Keystone 2013, OpenStack Compute 2013.1, and possibly other OpenStack components, fail to validate server-side SSL certificates.
- Record
PYSEC-2026-2677- CVSS 3.1
- 5.9 Medium
CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:H/A:N - Updated
- 2026-11-02
OSVPYSEC-2026-3034
OpenStack Keystone and other components vulnerable to Improper Certificate Validation
HTTPSConnections in OpenStack Keystone 2013, OpenStack Compute 2013.1, and possibly other OpenStack components, fail to validate server-side SSL certificates.
- Record
PYSEC-2026-3034- CVSS 3.1
- 5.9 Medium
CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:H/A:N - Updated
- 2026-11-02
OSVPYSEC-2026-656
OpenStack Keystone and other components vulnerable to Improper Certificate Validation
HTTPSConnections in OpenStack Keystone 2013, OpenStack Compute 2013.1, and possibly other OpenStack components, fail to validate server-side SSL certificates.
- Record
PYSEC-2026-656- CVSS 3.1
- 5.9 Medium
CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:H/A:N - Updated
- 2026-11-02
Affected products
Affected packages
| Package | Affected | Fixed |
|---|---|---|
python-keystoneclientPyPI |
before 0.4.0 | 0.4.0 |
cinderPyPI |
before 7.0.0a0 | 7.0.0a0 |
neutronPyPI |
before 7.0.0a0 | 7.0.0a0 |
keystonePyPI |
before 8.0.0a0 | 8.0.0a0 |
keystoneDebian:12 |
before 2014.1-1 | 2014.1-1 |
keystoneDebian:13 |
before 2014.1-1 | 2014.1-1 |
keystoneDebian:14 |
before 2014.1-1 | 2014.1-1 |
python-keystoneclientPyPI |
before 0.4.0, plus listed versions 0.1.10.1.20.1.30.2.00.2.1 Show 7 moreShow less0.2.20.2.30.2.40.2.50.3.00.3.10.3.2 |
0.4.0 |
neutronPyPI |
before 7.0.0a0, plus listed versions 0.0 |
7.0.0a0 |
History
| When | Changed | Sources |
|---|---|---|
| 2026-11-03 | aliases | EUVD |
| 2026-11-02 | created | CVE List, GitHub Advisories, NVD, OSV |
References
security-tracker.debian.org/tracker/CVE-2013-2255
bugzilla.redhat.com/show_bug.cgi?id=CVE-2013-2255
bugzilla.suse.com/show_bug.cgi?id=CVE-2013-2255
access.redhat.com/security/cve/cve-2013-2255
exchange.xforce.ibmcloud.com/vulnerabilities/85562
bugs.launchpad.net/ossn/+bug/1188189
Show 12 moreShow less
securityfocus.com/bid/61118
nvd.nist.gov/vuln/detail/CVE-2013-2255
github.com/openstack/cinder/commit/0f9652d92e175a1f7dc3c2a37ab444b8f189375a
web.archive.org/web/20200229073508/https://www.securityfocus.com/bid/61118
pypi.org/project/cinder