CVE detail
CVE-2026-50266
In OpenStack Neutron before 28.0.1, a project manager can create or update a port on a shared network owned by another project and set device_owner to a value that has "network:" at the beginning ("network:dhcp" for example). The default port RBAC policies incorrectly included PROJECT_MANAGER without requiring network ownership, allowing any project manager to obtain trusted network-service port behavior on shared networks. Depending on backend and deployment, this can bypass anti-spoofing and security group protections, enabling DHCP, MAC, or IP spoofing against other tenants on the shared network. This is a regression of CVE-2015-5240 (OSSA-2015-018).
Buzz score
Why this CVE is surfacing
This all-time snapshot uses the same composite formula as Trending across a 30-year evidence window, rather than a current rolling window.
Buzz score components · mention 19.5 · diversity 13.0 · KEV 0.0 · OTX 0.0 · PoC 0.0
Why it matters now
Mention timeline
- Total mentions
- 0
- within the 30d window
- Peak daily
- 0
- highest bucket
Evidence
Source links by recency
6 source links · newest first
- https://bugs.launchpad.net/neutron/+bug/2152115bugs.launchpad.net
No excerpt available.
Exploitbugs.launchpad.netJun 4, 2026, 5:16 PM - https://www.openwall.com/lists/oss-security/2026/06/04/6www.openwall.com
No excerpt available.
Exploitwww.openwall.comJun 4, 2026, 5:16 PM - https://review.opendev.org/990356review.opendev.org
No excerpt available.
Patchreview.opendev.orgJun 4, 2026, 5:16 PM - https://review.opendev.org/990353review.opendev.org
No excerpt available.
Patchreview.opendev.orgJun 4, 2026, 5:16 PM - https://review.opendev.org/990273review.opendev.org
No excerpt available.
Patchreview.opendev.orgJun 4, 2026, 5:16 PM - https://launchpad.net/bugs/2152115launchpad.net
No excerpt available.
Exploitlaunchpad.netJun 4, 2026, 5:16 PM
Exploit code
Public exploit repository references
Public PoC repositories are third-party, potentially unsafe artifacts. Treat their code as untrusted and use it only on authorized systems in an isolated, least-privilege environment. cvebuzz does not execute the code or verify that an exploit works.
0 repository references · best confidence N/A · max 0 stars
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