CVE-2026-107363
MEDIUM 6.1In OpenStack Zaqar before 23.0.1, the WebSocket transport fails to bind the project identifier in subsequent requests to the project authenticated by the Keystone token. An authenticated user with a valid token for one project may substitute another project's UUID to enumerate, inspect, create, or delete queues belonging to that project, resulting in unauthorized disclosure, modification, or loss of queue data. Only deployments using the WebSocket transport with Keystone authentication are affected.
No known exploitation, public exploit, or elevated probability at this time. Track for changes.
Exploitation likelihood
0.5%chance of exploitation in 30 days · 39th percentile
Impact if exploited
6.1CVSS 4.0 · MEDIUM
- ConfidentialityLow
- IntegrityHigh
- AvailabilityHigh
What an attacker needs
- ✓Access: Reachable over the network — no local access needed
- ⚠Privileges: Requires a low-privilege account
- ✓User interaction: No user interaction needed
- ✓Complexity: No special conditions — reliably repeatable
- ⚠Requirements: Specific conditions must be present
✓ lowers the bar for an attacker · ⚠ raises it
Proof of concept
No public PoC is currently catalogued.
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Data snapshot:
Weakness (CWE)
- CWE-472: External Control of Assumed-Immutable Web Parameter
CVSS vector
CVSS:4.0/AV:N/AC:L/AT:P/PR:L/UI:N/VC:L/VI:H/VA:H/SC:N/SI:N/SA:N
References and research data (JSON)
All CVSS metrics
- MEDIUM 6.1 v4.0 · CNA Primary
CVSS:4.0/AV:N/AC:L/AT:P/PR:L/UI:N/VC:L/VI:H/VA:H/SC:N/SI:N/SA:N - MEDIUM 6.1 v4.0 · NVD Secondary
CVSS:4.0/AV:N/AC:L/AT:P/PR:L/UI:N/VC:L/VI:H/VA:H/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X
References
Exploit-tagged references (not proof of a PoC)
- https://launchpad.net/bugs/2161402 CVE record · mitre · Updated 2026-10-07T20:08:47.548Z
CVE record · CISA-ADP · Updated 2026-10-07T20:38:56.097Z
NVD · CVE-2026-107363 · Updated 2026-10-08T21:33:42.423
Advisories
- https://euvd.enisa.europa.eu/vulnerability/EUVD-2026-94614 EUVD · EUVD-2026-94614
Technical & other
- https://www.openwall.com/lists/oss-security/2026/10/07/30CVE record · mitre · Updated 2026-10-07T20:08:47.548Z
NVD · CVE-2026-107363 · Updated 2026-10-08T21:33:42.423 - http://www.openwall.com/lists/oss-security/2026/10/07/31CVE record · CVE · Updated 2026-10-07T23:06:46.671Z
NVD · CVE-2026-107363 · Updated 2026-10-08T21:33:42.423