Medium severityNVD Advisory· Published May 28, 2026· Updated Jul 21, 2026
CVE-2026-49299
CVE-2026-49299
Description
In OpenStack Neutron before 28.0.1, the tagging controller enforces plural policy action names on single-tag write operations while the defined policy rules use singular names. The mismatched names evaluate as allowed under the default policy, permitting a project reader to create and update tags on same-project resources. Deployments running Neutron 26.0.0 or later are affected.
AI Insight
LLM-synthesized narrative grounded in this CVE's description and references.
Affected packages
Versions sourced from the GitHub Security Advisory.
| Package | Affected versions | Patched versions |
|---|---|---|
neutronPyPI | >= 28.0.0, < 28.0.1 | 28.0.1 |
neutronPyPI | >= 27.0.0, < 27.0.3 | 27.0.3 |
neutronPyPI | >= 26.0.0, < 26.0.4 | 26.0.4 |
Affected products
2Patches
Vulnerability mechanics
References
6- github.com/advisories/GHSA-xv24-hxh9-2hh9ghsaADVISORY
- nvd.nist.gov/vuln/detail/CVE-2026-49299ghsaADVISORY
- www.openwall.com/lists/oss-security/2026/06/02/7nvdWEB
- bugs.launchpad.net/bugs/2150132nvdWEB
- review.opendev.org/c/openstack/neutron/+/989099nvdWEB
- www.openwall.com/lists/oss-security/2026/05/28/8nvdWEB
News mentions
1- OpenStack: Six Medium-to-High CVEs Disclosed Across Neutron, Keystone, and SwiftVypr Intelligence · May 28, 2026