VulnSocial

CVE-2026-9791Disclosure(redhat / build_of_keycloak)

LOWCVSS 4.3 · MEDIUM

Signal is active with 1 mentions in latest observed window

Immediate actions

  • Track advisory updates for patch or workaround availability

Recommended action window: Monitor and triage in normal cycle

NVD description

A flaw was found in Keycloak. An authenticated user with existing organization membership can exploit this flaw by accessing user-facing APIs, such as the account API or by requesting an OpenID Connect (OIDC) token with the 'organization' scope. This allows organization metadata to be disclosed in tokens, even after an administrator has explicitly disabled the Organizations feature, potentially leading to incorrect authorization decisions by resource servers.

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0.0/ 10 priority

Sources & remediation

Vendor / third-party advisories
Other references
Weakness type (CWE)
CWE-863

Priority

LOW

Exploitation

NONE

PoC

NONE

Patch

NONE

Momentum

NONE

Are you affected?

If you run products in this scope, you should treat this CVE as relevant to your environment.

  • build_of_keycloak

Threat summary

  • 1 mentions across 1 observed day

What's happening

  • Technical details provided in 1 signal
  • Disclosure: 1 classified signal
  • 1 total mentions across 1 day

Affected systems

Vendors
redhat
Products
build_of_keycloak

1 version affected across 1 product

Deep dive

Activity timeline1 mentions / 1d
00111Mentions · 2026-05-28: 1Technical Details · 2026-05-28: 105-28
Signal classification1 categories
Disclosure
1100.0%
Referenced assets5 URLs
Full discourse1 post
  • White Rabbitx 🏴‍☠️@TheRabbitPy
    Disclosure

    More Keycloak flaws impact SAML, JWE handling, OIDC policies, and data exposure. Attackers can enumerate clients, bypass signature enforcement, evade client policy restrictions, and leak organization metadata. Also: Acer NitroSense LPE via weak named pipe ACL. CVE-2026-9794 https://nvd.nist.gov/vuln/detail/CVE-2026-9794 CVE-2026-9793 https://nvd.nist.gov/vuln/detail/CVE-2026-9793 CVE-2026-9792 https://nvd.nist.gov/vuln/detail/CVE-2026-9792 CVE-2026-9791 https://nvd.nist.gov/vuln/detail/CVE-2026-9791 CVE-2026-9789 https://nvd.nist.gov/vuln/detail/CVE-2026-9789

    Post summary

    The post lists several new Keycloak and Acer vulnerabilities, highlights potential impact areas, but offers no PoC, exploit, or patch information.

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CPE platform detail1 entries

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PartVendorProductVersionTarget SWTarget HW
Appredhatbuild_of_keycloak---

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