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CVE Record

CVE-2026-9800: Keycloak-policy-enforcer: keycloak policy enforcer: authorization bypass via incorrect uri comparison

A flaw was found in Keycloak Policy Enforcer. This vulnerability allows any authenticated user to bypass all authorization policies, including role, scope, and User-Managed Access (UMA) permission checks. By including the configured access-denied page path within a request URL, either as a path segment or a query parameter, an attacker can gain unauthorized access to protected resources.

HighCVSS 8.1Not KEV-listedUpdated
Potential ATT&CK relevance

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Privilege behavior lookup

The CVE wording references privilege impact, so privilege escalation and authorization behavior review may help. This is a Glexia inferred lookup path, not an official MITRE, ATT&CK, or CVE Program mapping.

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CVE-2026-9800 mapping review

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Vulnerability profileCVE Program record
Severity
High
CVSS
8.1 (3.1)
Known Exploited
No
Published

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

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
7Timeline events
2ADP providers
12Source 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
8.1CVSS 3.1HighCVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:N2.85.2redhat
8.1CVSS 3.1HighCVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:N2.85.2redhat-SADP

Vulnerability scoring details

Base CVSS 3.1 score

8.1High
CVSS 3.1 vector shape for CVE-2026-9800Attack VectorAttack ComplexityPrivileges RequiredUser InteractionScopeConfidentiality ImpactIntegrity ImpactAvailability Impact

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

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. ADP timelineredhat-SADP

    Made public.

  2. Source timelineredhat

    Made public.

  3. ADP timelineredhat-SADP

    Reported to Red Hat.

  4. Source timelineredhat

    Reported to Red Hat.

  5. CVE reservedCVE Program

    The CVE ID was reserved by the assigning CNA.

  6. CVE publishedCVE Program

    The CVE record was published.

  7. CVE updatedCVE Program

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

ADP provider summaries

CISA-ADPCISA ADP Vulnrichment
other:ssvc
redhat-SADPkeycloak-policy-enforcer: Keycloak Policy Enforcer: Authorization bypass via incorrect URI comparison
other:Red Hat severity ratingcvssV3_1
  • 2026-05-28T03:57:56.111Z: Reported to Red Hat.
  • 2026-05-19T00:00:00.000Z: Made public.

Source materials

Affected products

Products and packages named in the record

VendorProductVersion / packageStatus
Red HatRed Hat build of Keycloak 26.4rhbk/keycloak-operator-bundle, 26.4.13-1affected
Red HatRed Hat build of Keycloak 26.4rhbk/keycloak-rhel9, 26.4-19affected
Red HatRed Hat build of Keycloak 26.4rhbk/keycloak-rhel9-operator, 26.4-19affected
Red HatRed Hat build of Keycloak 26.4rhbk/keycloak-operator-bundle, 26.4.14-1affected
Red HatRed Hat build of Keycloak 26.4rhbk/keycloak-rhel9, 26.4-22affected
Red HatRed Hat build of Keycloak 26.4rhbk/keycloak-rhel9-operator, 26.4-22affected
Red HatRed Hat build of Keycloak 26.4.13rhbk/keycloak-rhel9unaffected
Red HatRed Hat build of Keycloak 26.4.14rhbk/keycloak-rhel9unaffected
Red HatRed Hat build of Keycloak 26.6rhbk/keycloak-operator-bundle, 26.6.4-2affected
Red HatRed Hat build of Keycloak 26.6rhbk/keycloak-rhel9, 26.6-8affected
Red HatRed Hat build of Keycloak 26.6rhbk/keycloak-rhel9-operator, 26.6-8affected
Red HatRed Hat build of Keycloak 26.6.4rhbk/keycloak-rhel9unaffected
Red HatRed Hat build of Quarkus 3.27.4.SP2keycloak-policy-enforcerunaffected
Red HatRed Hat build of Quarkus 3.33.2.SP2keycloak-policy-enforcerunaffected
Red HatRed Hat JBoss Enterprise Application Platform Expansion Packkeycloak-policy-enforcerunaffected
Red HatRed Hat Single Sign-On 7servlet-policy-enforcerunknown
Weakness

CWE details

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

CWE-1025 · source CWE mapping

Comparison Using Wrong Factors

Comparison Using Wrong Factors represents a recurring weakness pattern that can create exploitable paths when design, validation, or implementation controls are missing.