Authorization bypass in OpenStack keystonemiddleware
Key facts
- Attack vector
- Network
- Privileges required
- Low
- User interaction
- None
- Attack complexity
- Low
- Impact type
- Security bypass
- Confidentiality · integrity · availability
- High · High · Low
- Fix status
- Partial Red Hat: 6 without a fix
Attack profile from CVSS 3.1 · CNA. Fix status from CNA and Red Hat. Impact type from CWE-863.
Summary
OpenStack keystonemiddleware versions before 10.12.2, from 11.0.0 before 12.0.1, and from 13.0.0 before 13.0.2 are affected. Incorrect authorization (CWE-863) lets a request that supplies a custom X-Service-Token header bypass the restrictions on an access-restricted application credential. An attacker with low privileges over the network who holds such a credential can gain elevated privileges.
Written with Claude Haiku 5.5 from the sources below · 2026-10-30
Description from the CNA
In OpenStack keystonemiddleware before 13.0.2, by supplying a custom X-Service-Token header in a request, anyone in possession of an access-restricted application credential may bypass those restrictions resulting in elevation of privileges.
Why it matters now
SSVC decision points
CISA ADP · SSVC 2.0.3
- Exploitation
- None
- Automatable
- No
- Technical impact
- Total
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 | keystonemiddleware | before 10.12.2; 11.0.0 to before 12.0.1; 13.0.0 to before 13.0.2 | 10.12.2, 12.0.1, 13.0.2 | Patch available | CNA |
- keystonemiddleware VendorOpenStack Affected before 10.12.2; 11.0.0 to before 12.0.1; 13.0.0 to before 13.0.2 Fixed in 10.12.2, 12.0.1, 13.0.2 Patch available CNA
Remediation
Upgrade keystonemiddleware to 10.12.2, 12.0.1 or 13.0.2. Red Hat lists Red Hat OpenShift Container Platform 4 and 5 and Red Hat OpenStack Platform 13 (Queens), 16.2, 17.1 and 18.0 as affected, with no available plan.
Written with Claude Haiku 5.5 from the sources below · 2026-10-30
- Fix · CNA keystonemiddleware (OpenStack) Fixed in 10.12.2, 12.0.1, 13.0.2
Vendor assessments
Red Hat
Red Hat rating: Important. Red Hat's page for this CVE →
| Product | Status | Plan or fix |
|---|---|---|
| Red Hat OpenShift Container Platform 4 | Affected | No fix yet |
| Red Hat OpenShift Container Platform 5 | Affected | No fix yet |
| 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
- 2026-10-30 Threatist record created from CVE-2026-115642
- 2026-10-30 CISA SSVC decision points changed
- 2026-10-30 Priority changed: MEDIUM → LOW
- 2026-10-30 Alias added: GHSA-ghh7-5q3h-mc48
References
More OpenStack vulnerabilities
- 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
Sources
- CVE-2026-115642 · CVE Program
- CVE-2026-115642 · NVD
- FIRST EPSS
- GHSA-ghh7-5q3h-mc48 · GitHub Advisory Database · CC BY 4.0
- CVE-2026-115642 · Red Hat security data · CC BY 4.0
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