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CVE Record

CVE-2026-22797: An issue was discovered in OpenStack keystonemiddleware 10.5 through 10.7 before 10.7.2, 10.8 and 10.9 befo...

An issue was discovered in OpenStack keystonemiddleware 10.5 through 10.7 before 10.7.2, 10.8 and 10.9 before 10.9.1, and 10.10 through 10.12 before 10.12.1. The external_oauth2_token middleware fails to sanitize incoming authentication headers before processing OAuth 2.0 tokens. By sending forged identity headers such as X-Is-Admin-Project, X-Roles, or X-User-Id, an authenticated attacker may escalate privileges or impersonate other users. All deployments using the external_oauth2_token middleware are affected.

CriticalCVSS 9.9Not KEV-listedUpdated
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Glexia's TakeAutomated analysis

Security readout for executives and security teams

This flaw affects some OpenStack deployments using keystonemiddleware external OAuth 2.0 token handling. An authenticated user may supply forged identity headers that are incorrectly trusted, potentially becoming an admin or another user. Business impact is high where OpenStack APIs manage sensitive infrastructure. Exposure is limited to OpenStack deployments running affected keystonemiddleware versions and using the external_oauth2_token middleware. Network-reachable OpenStack APIs are higher priority because exploitation requires only authenticated access, low complexity, and no user interaction. Treat as urgent for OpenStack environments using external OAuth 2.0 token middleware. The vulnerability can undermine cloud administrative boundaries, so remediation should be scheduled ahead of normal patch cycles for exposed or multi-tenant deployments. Mitigation focus: Upgrade keystonemiddleware to 10.7.2, 10.9.1, 10.12.1, or later as applicable.; Apply relevant Red Hat advisories where using Red Hat-packaged OpenStack components.; Identify and prioritize deployments using external_oauth2_token middleware..

Prepared

Generated from the cited source records. This long-tail analysis has not been individually reviewed by a named human.

Potential ATT&CK relevance

Conservative CVE-to-ATT&CK context

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ATT&CK lookup starting points

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cwe · low confidence lookup

CWE-290: Exact CWE lookup

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CVE-2026-22797 mapping review

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Vulnerability profileCVE Program record
Severity
Critical
CVSS
9.9 (3.1)
Known Exploited
No
Published

Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:L

Official CVE source material

CNA and ADP enrichment extracted from CVE v5

These fields come from the CVE record and ADP containers, not from Glexia's Take. They preserve time-varying source decisions such as CISA SSVC, KEV status, CVSS metrics, and provider references.

2CVSS vectors
5Timeline events
3ADP providers
11Source links

SSVC decision data

CISA-ADPCISA Coordinator
Timestamp
Version
2.0.3
Exploitation: noneAutomatable: noTechnical Impact: total

CVSS vector scores

2 official scores

We collect every scored CVSS vector available in the official CNA and ADP containers. When more than one version is present, the table keeps the source vectors side by side instead of collapsing them into the highest score.

ScoreVersionSeverityVectorExploitImpactSource
9.9CVSS 3.1CriticalCVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:L3.16mitre
9.9CVSS 3.1CriticalCVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:L3.16redhat-SADP

Vulnerability scoring details

Base CVSS 3.1 score

9.9Critical
CVSS 3.1 vector shape for CVE-2026-22797Attack VectorAttack ComplexityPrivileges RequiredUser InteractionScopeConfidentiality ImpactIntegrity ImpactAvailability Impact

Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:L

Attack Vector
NetworkAdjacentLocalPhysical
Attack Complexity
LowHigh
Privileges Required
NoneLowHigh
User Interaction
NoneRequired
Scope
ChangedUnchanged
Confidentiality Impact
HighLowNone
Integrity Impact
HighLowNone
Availability Impact
HighLowNone

Vulnerability timeline

Timeline events are normalized from CVE metadata, CNA source timelines, ADP timelines, and KEV metadata when present.

  1. CVE reservedCVE Program

    The CVE ID was reserved by the assigning CNA.

  2. ADP timelineredhat-SADP

    Made public.

  3. CVE publishedCVE Program

    The CVE record was published.

  4. ADP timelineredhat-SADP

    Reported to Red Hat.

  5. CVE updatedCVE Program

    The CVE record metadata indicates this as the latest update time.

ADP provider summaries

CVECVE Program Container
CISA-ADPCISA ADP Vulnrichment
other:ssvc
redhat-SADPkeystonemiddleware: OpenStack keystonemiddleware: Privilege escalation and user impersonation via forged authentication headers
other:Red Hat severity ratingcvssV3_1
  • 2026-01-19T18:01:09.300Z: Reported to Red Hat.
  • 2026-01-19T00:00:00.000Z: Made public.

Source materials

Affected products

Products and packages named in the record

VendorProductVersion / packageStatus
OpenStackkeystonemiddleware10.5.0, 10.8.0, 10.10.0unaffected
Weakness

CWE details

CWE-290

CWE links open Glexia weakness intelligence pages with official CWE context, developer remediation guidance, and related CVE mappings.