TI-2026-55426 Aliases CVE-2026-80183 GHSA-xmh6-7768-658c

Type confusion in OpenStack Keystone

LOW 31CWE-843Published 2026-08-26 · Updated 2026-08-27

Key facts

Attack vector: Network
Privileges required: Low
User interaction: None
Attack complexity: Low
Attack requirements: None
Impact type: —
Confidentiality · integrity · availability: High · None · None
Fix status: Partial Red Hat: 4 without a fix

Attack profile from CVSS 4.0 · CNA. Fix status from CNA and Red Hat.

Summary

In OpenStack Keystone before 29.0.3, any authenticated user holding role:reader on any project can list every project-scoped role assignment under any domain by passing a domain ID as scope.project.id with include_subtree to the GET /v3/role_assignments endpoint. The domain's project record has domain_id=null, causing the policy domain_id check to pass for any caller. With include_names, the response discloses the names and home-domain IDs of every user, group, project, and role involved. The literal "default" domain ID works against any deployment created with keystone-manage bootstrap. An attacker can harvest domain IDs from the response and repeat the query to map role assignments across the entire cloud. This is caused by misuse of "None" in list_role_assignments_for_tree.

Why it matters now

Exploitation None reported CISA SSVC · not in CISA KEV

EPSS 0.00382 32nd percentileScored 2026-11-07

Fix Partial Keystone (OpenStack): 27.0.3, 28.0.3, 29.0.3Red Hat: 4 without a fix

SSVC decision points

CISA ADP · SSVC 2.0.3

Exploitation: None
Automatable: No
Technical impact: Partial

The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.

Affected products

Vendor	Product	Affected versions	Fixed in	Status	Source
OpenStack	Keystone	16.0.0 to before 27.0.3; 28.0.0 to before 28.0.3; 29.0.0 to before 29.0.3	27.0.3, 28.0.3, 29.0.3	Patch available	CNA

Keystone VendorOpenStack Affected 16.0.0 to before 27.0.3; 28.0.0 to before 28.0.3; 29.0.0 to before 29.0.3 Fixed in 27.0.3, 28.0.3, 29.0.3 Patch available CNA

CPE names Threatist (inferred) · 1

Inferred from how NVD named this product before; not given by a source.

CPE	Versions	Role	Vendor
cpe:2.3:a:openstack:keystone::::::::	—	—	OpenStack

cpe:2.3:a:openstack:keystone:*:*:*:*:*:*:*:* Versions — — ·OpenStack

Remediation

Fix · CNA Keystone (OpenStack) Fixed in 27.0.3, 28.0.3, 29.0.3

Vendor assessments

Red Hat

Red Hat rating: Moderate. Red Hat's page for this CVE →

Product	Status	Plan or fix
Red Hat OpenStack Platform 13 (Queens)	Affected	No fix yet
Red Hat OpenStack Platform 16.2	Affected	No fix yet
Red Hat OpenStack Platform 17.1	Affected	No fix yet
Red Hat OpenStack Platform 18.0	Affected	No fix yet

Timeline

2026-10-02 Threatist record created from CVE-2026-80183
2026-10-03 Alias added: GHSA-xmh6-7768-658c

References

Other 1

https://launchpad.net/bugs/2154645

TI-2026-78562 Incorrect authorization in OpenStack Manila share operations CVSS 3.1CRITICAL 9.9
TI-2026-63467 Code injection in OpenStack Octavia CVSS 4.0CRITICAL 9.4
TI-2017-13226 The tcpmss_mangle_packet function in net/netfilter/xt_TCPMSS.c in the Linux kernel before… CVSS 3.1CRITICAL 9.8
TI-2026-69629 OpenStack Mistral flaw lets users change other projects' resources CVSS 4.0HIGH 7.2
TI-2026-69623 Command injection in OpenStack Mistral std.ssh_proxied action CVSS 4.0HIGH 8.7
TI-2022-17779 Improper privilege management in OpenStack CVSS 3.1HIGH 8.8

See all 332 →

Sources

This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences