# CVE-2015-8234: OpenStack Glance Signature Verification Bypass

Source: https://junglewise.ai/threats/cve-2015-8234-openstack-glance-signature-verification-bypass  
Publisher: Junglewise Threat Intelligence, https://junglewise.ai/threats  
Published: 2017-03-29  
License: CC BY 4.0 with a link back

CVE-2015-8234 · Severity: low · CVSS 3 · Published 2017-03-29

The image signature algorithm in OpenStack Glance 11.0.0 allows remote attackers to bypass the signature verification process via a crafted image, which triggers an MD5 collision.

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

## Quick answers

**Is CVE-2015-8234 exploited in the wild?** No. Junglewise Threat Intelligence has no report of CVE-2015-8234 being exploited in the wild.

**How severe is CVE-2015-8234?** Low severity, with a CVSS score of 3, published 29 March 2017.

**Which products and versions are affected?** glance (PyPI) ECOSYSTEM:introduced=0,last_affected=11.0.0.

**Is there a fix for CVE-2015-8234?** No fixed version is recorded yet. Check the vendor's advisory in the references below. If you run it, Junglewise drafts a mitigation that fits your setup and applies it once you approve, with senior security engineers behind it.

**Am I affected by CVE-2015-8234?** Check whether you run glance (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.

## Affected products

- glance (PyPI) ECOSYSTEM:introduced=0,last_affected=11.0.0

## Identifiers

- CVE-2015-8234
- GHSA-wmhw-fvg9-87fc
- PYSEC-2017-143

## Related threats

- [PYSEC-2026-2493 - OpenStack Cinder, Glance, and Nova vulnerable to arbitrary file access](https://junglewise.ai/threats/cve-2024-32498-openstack-cinder-glance-and-nova-vulnerable-to-arbitrary-file)
- [PYSEC-2026-868 - OpenStack Cinder, glance, and Nova vulnerable to Path Traversal](https://junglewise.ai/threats/cve-2022-47951-openstack-cinder-glance-and-nova-vulnerable-to-path-traversal)
- [PYSEC-2026-817 - OpenStack Image Registry and Delivery Service (Glance) Improper Input Validation vulnerability](https://junglewise.ai/threats/cve-2014-0162-openstack-image-registry-and-delivery-service-glance-improper)
- [PYSEC-2026-816 - OpenStack Image Service (Glance) allows remote authenticated users to bypass access restrictions](https://junglewise.ai/threats/cve-2015-5251-openstack-image-service-glance-allows-remote-authenticated-users)
- [OpenStack Image Service (Glance) allows remote authenticated users to bypass storage quota, cause denial of service](https://junglewise.ai/threats/cve-2015-5286-openstack-image-service-glance-allows-remote-authenticated-users)