# CVE-2017-7543: PYSEC-2026-686 - OpenStack Neutron Race Condition vulnerability

Source: https://junglewise.ai/threats/cve-2017-7543-openstack-neutron-race-condition-vulnerability  
Publisher: Junglewise Threat Intelligence, https://junglewise.ai/threats  
Published: 2026-07-02  
License: CC BY 4.0 with a link back

CVE-2017-7543 · Severity: low · CVSS 3 · Published 2026-07-02

OpenStack Neutron Race Condition vulnerability

Technologies: [neutron (PyPI)](https://junglewise.ai/threats/technologies/pypi-neutron). Vendors: [PyPI](https://junglewise.ai/threats/vendors/pypi).

## Quick answers

**Is CVE-2017-7543 exploited in the wild?** No. Junglewise Threat Intelligence has no report of CVE-2017-7543 being exploited in the wild.

**How severe is CVE-2017-7543?** Low severity, with a CVSS score of 3, published 2 July 2026.

**Which products and versions are affected?** neutron (PyPI) ECOSYSTEM:introduced=0,fixed=7.2.0-12.1, ECOSYSTEM:introduced=0,fixed=7.2.0-12.1,introduced=8.0.0,fixed=8.3.0-11.1,introduced=9.0.0,fixed=9.3.1-2.1,introduced=10.0.0,fixed=10.0.2-1.1.

**Is there a fix for CVE-2017-7543?** Yes. neutron (PyPI): upgrade to 10.0.2-1.1, 7.2.0-12.1 or later. Junglewise finds every place you run it, drafts the upgrade and applies it once you approve.

**Am I affected by CVE-2017-7543?** Check whether you run neutron (PyPI) at an affected version. Junglewise does that check for you around the clock: connect your code, cloud and domains, and it matches new vulnerabilities like this one against what you actually run and tells you when one reaches you.

## How to fix

- neutron (PyPI): upgrade to 10.0.2-1.1, 7.2.0-12.1 or later

  ```sh
  pip install "neutron>=10.0.2-1.1"
  ```


## Affected products

- neutron (PyPI) ECOSYSTEM:introduced=0,fixed=7.2.0-12.1, ECOSYSTEM:introduced=0,fixed=7.2.0-12.1,introduced=8.0.0,fixed=8.3.0-11.1,introduced=9.0.0,fixed=9.3.1-2.1,introduced=10.0.0,fixed=10.0.2-1.1

## Identifiers

- CVE-2017-7543
- GHSA-hvxr-2fvv-c3wq
- PYSEC-2026-686

## Related threats

- [PYSEC-2026-1693 - OpenStack Neutron can use an incorrect ID during policy enforcement](https://junglewise.ai/threats/cve-2024-53916-openstack-neutron-can-use-an-incorrect-id-during-policy)
- [PYSEC-2026-1694 - Denial of service in neutron](https://junglewise.ai/threats/cve-2023-3637-denial-of-service-in-neutron)
- [PYSEC-2026-855 - openstack-neutron uncontrolled resource consumption flaw](https://junglewise.ai/threats/cve-2022-3277-openstack-neutron-uncontrolled-resource-consumption-flaw)
- [PYSEC-2026-851 - OpenStack Neutron Improper Authentication vulnerability](https://junglewise.ai/threats/cve-2014-0056-openstack-neutron-improper-authentication-vulnerability)
- [PYSEC-2026-853 - OpenStack Neutron Race condition vulnerability](https://junglewise.ai/threats/cve-2015-5240-openstack-neutron-race-condition-vulnerability)