VulnerabilityPublished 24 Sep 2026Updated 6 Nov 2026

CVE-2026-97311: Red Hat build of Keycloak 26.6.8 · Missing Authorization

Affects Red Hat build of Keycloak 26.6.8Source CVE Database V5

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Not known to be exploited · CVSS 4.3 Medium.

Data as of 8 Nov 2026, 23:24 UTC

CVSS 3.1 base score

4.3Medium

How severe the flaw is on the 0–10 CVSS scale.

Thin evidence

One scorer or none

CVSS scores by source
CNA (redhat)	CVSS 3.1	4.3

EPSS: 0.2% chance of exploitation in 30 days – higher than 20% of CVEsExploit Prediction Scoring System: the likelihood attackers will use this flaw soon.

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

Attack Vector: Network
Attack Complexity: Low
Privileges Required: Low
User Interaction: None
Scope: Unchanged
Confidentiality: Low
Integrity: None
Availability: None

Bold values are the worst case: easiest to exploit or largest impact.

Attack Vector: Network: The vulnerable component is bound to the network stack and the set of possible attackers extends beyond the other options listed, up to and including the entire Internet. Such a vulnerability is often termed 'remotely exploitable' and can be thought of as an attack being exploitable at the protocol level one or more network hops away (e.g., across one or more routers).
Attack Complexity: Low: Specialized access conditions or extenuating circumstances do not exist. An attacker can expect repeatable success against the vulnerable component.
Privileges Required: Low: The attacker is authorized with (i.e., requires) privileges that provide basic user capabilities that could normally affect only settings and files owned by a user. Alternatively, an attacker with Low privileges may have the ability to cause an impact only to non-sensitive resources.
User Interaction: None: The vulnerable system can be exploited without any interaction from any user.
Scope: Unchanged: An exploited vulnerability can only affect resources managed by the same security authority. In this case, the vulnerable component and the impacted component are either the same, or both are managed by the same security authority.
Confidentiality: Low: There is some loss of confidentiality. Access to some restricted information is obtained, but the attacker does not have control over what information is obtained, or the amount or kind of loss is limited. The information disclosure does not cause a direct, serious loss to the impacted component.
Integrity: None: There is no loss of integrity within the impacted component.
Availability: None: There is no impact to availability within the impacted component.

Definitions: FIRST CVSS v3.1 specification.

Exploitation evidence

Disclosed: evidence found.
CVE published 24 Sep 2026
Detectable: no evidence on record.
No public nuclei template indexed
Weaponized: no evidence on record.
No public exploit code indexed in Metasploit or Exploit-DB
Exploited in the wildExploited: no evidence on record.
Not in CISA KEV and no source reports exploitation
Observed by OffSeq MirageSeen by Mirage: no evidence on record.
No attack traffic recorded by OffSeq Mirage sensors

A missing step is not evidence of safety. Sources: cve.org (opens in a new tab), the Metasploit, Exploit-DB and nuclei-templates index as of 8 Nov 2026.

Disclosed: The CVE record is public on cve.org. Its publication is t = 0.
Detectable: A public nuclei template can find exposed instances, for defenders and attackers alike.
Weaponized: A Metasploit exploit module or Exploit-DB entry exists (Metasploit scanner modules do not count), or CISA SSVC or the CVSS exploit maturity reports a public proof of concept.
Exploited in the wild: CISA KEV lists it, CISA SSVC rates exploitation active, or a source reports attacks.
Observed by OffSeq Mirage: OffSeq Mirage honeypot sensors recorded attack traffic for this CVE, or found exposed hosts without attack traffic.

Moments are spaced evenly, not to scale; a dashed line marks a gap of six months or more. Deltas count from t = 0. Sources that give only a date (CISA KEV, Exploit-DB, or a time of exactly 00:00Z) read “same day” rather than hours. Metasploit modules carry the flaw’s disclosure date, not their release date, and nuclei templates carry no date, so both appear above but not on the timeline.

What to do

Affected software

Product	Affected	Fixed in
Red Hat build of Keycloak 26.6.8keycloak-services	Affected–	Fixed in–
Red Hat build of Keycloak 26.6.8rhbk/keycloak-rhel9	Affected–	Fixed in–
Red Hat Single Sign-On 7keycloak-services	Affected–	Fixed in–

AI-suggested

Red Hat has stated that no mitigation is currently available that meets their criteria for ease of use, applicability, or stability. Users should monitor Red Hat advisories for future updates or patches. Since exploitation requires delegated administrative privileges, limiting such privileges to trusted users reduces risk.

Description

CVE-2026-97311 is a vulnerability in the Admin REST API of the Red Hat build of Keycloak 26.6.8. The flaw involves missing authorization checks when retrieving groups associated with a specific role, allowing delegated administrators with basic search privileges to view all groups assigned to that role. This bypasses intended security restrictions that should limit group visibility. Exploitation requires existing delegated administrative privileges. The vulnerability has a CVSS score of 4.3 (medium severity). No effective mitigation or patch is currently available from Red Hat.

Impact

An attacker with delegated administrative privileges can bypass intended access controls to view detailed information about all groups assigned to a role, including group metadata and membership. This leads to unauthorized disclosure of sensitive group information, impacting confidentiality. There is no impact on integrity or availability. The vulnerability requires low privileges (delegated admin) and no user interaction.

Summary

A missing authorization check in the Admin REST API of Red Hat's build of Keycloak 26.6.8 allows delegated administrators with basic search privileges to bypass fine-grained visibility controls. Specifically, endpoints that retrieve groups associated with a role do not properly enforce individual group visibility permissions, enabling unauthorized disclosure of detailed group metadata and membership information. The vulnerability is classified as CWE-862 (Missing Authorization). Red Hat rates the severity as moderate due to the prerequisite of delegated admin privileges for exploitation.

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Exploitation evidence

What to do

Affected software

Description

AI analysisMachine-generated, updated 6 Nov 2026, 11:47 UTC

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