CVE & CISA-KEV Catalog

CVE-2026-9799

MEDIUM
4.6
CVSS v3
NVD

Description

A flaw was found in org.keycloak.authorization. An authenticated user with a granted User-Managed Access (UMA) permission ticket for one resource can exploit this by using a specific permission request prefix to bypass per-resource access control. This allows the user to gain unauthorized access to all resources of that type within the same resource server, even if they do not have a ticket for those specific resources. This vulnerability requires the resource server to be configured in PERMISSIVE policy enforcement mode and affects typed resources with ownerManagedAccess enabled, where no explicit policy protects the resource type. The primary consequence is unauthorized information disclosure or modification of resources.

How to fix

Remediation Available
rhbk/keycloakRed Hat / RHEL
Fixed in:rhel9-operator@sha256:c88a14bcd41b509c2f10713403d6a3cde9a9d2e6f78311de43a9b3090f7fcb94_s390xRHSA-2026:30084
Fixed in:operator-bundle@sha256:8e800f8ab196c4bbbaf4397e438a2e02e7dc9fd588feb6a6a813f730ab65b0ec_amd64RHSA-2026:30084
Fixed in:rhel9-operator@sha256:8b4788a5f7e7687f3cc98a80407057a915d516aa79ff2e879780fa13e3be738f_ppc64leRHSA-2026:30050
Fixed in:rhel9@sha256:ffedd9c68012f3ce5e6d3287775c589fcbe5ba6858afc6b2fd47663fce4b138b_amd64RHSA-2026:30084
Fixed in:rhel9-operator@sha256:502c9e94ad138d062ca6e81de89284f5bcc0d27595b193498cf35f7e1bff9a40_amd64RHSA-2026:30050
Fixed in:rhel9@sha256:183d2a02d613de6745e0741333c4d34d8544b74866efac9237c46f26114b8c66_ppc64leRHSA-2026:30050
Fixed in:rhel9@sha256:df587be8cab83d8da4cbc7e9d4e6ffcaa5cd779027238d51ee462941a680142e_s390xRHSA-2026:30084
Fixed in:rhel9@sha256:4c7d38f4d628edcb59a1f066487f60c3874633d29c9aa0aaa5edd73ef0c5d9e3_arm64RHSA-2026:30084
Fixed in:rhel9@sha256:05b207815e7e032115df73466875ac10436fb304bec7322e7a0a1a919901fdab_arm64RHSA-2026:30050
Fixed in:rhel9@sha256:d94079e34e41affcb63b6094781e9e0bb0c1e15ae2f24c93ad7bf6353937ec9a_s390xRHSA-2026:30050
Fixed in:rhel9@sha256:20440d38f4f71719a27184eeb8eca059dd39fa6c975dfa57529af586bbe7db11_ppc64leRHSA-2026:30084
Fixed in:rhel9-operator@sha256:bb723943f57bf3f1b02f8b67e3aff2043b30f867dbf90155a5596b954073f57e_arm64RHSA-2026:30050
Fixed in:operator-bundle@sha256:dc6f5cde01bde313152b99cbead708160e43be14804f0ff768123fa9f54b4a4b_amd64RHSA-2026:30050
Fixed in:rhel9-operator@sha256:d14691fa2b04762df8e788c63104611b75714f671604347347afb7f27ec6e592_arm64RHSA-2026:30084
Fixed in:rhel9-operator@sha256:c56fdf74f5055b2ed0aa1a5706f1fe5428692aaa4d107d2081fb7c6ee7d5ace0_s390xRHSA-2026:30050
Fixed in:rhel9-operator@sha256:e0ff01fb6339ac11a495514a23a71a78bd947809fa0c9bc1a3bda7cdb59bc9ed_ppc64leRHSA-2026:30084
Fixed in:rhel9-operator@sha256:2e00190cd88d026765df408d00a63cee8ceb3cd27ddb43e41b37c85936f4e926_amd64RHSA-2026:30084
Fixed in:rhel9@sha256:70634542b3ae6f9c0593bd6a63d2e9fa4667c27d1cbf78c07bee4b1ebc1b6706_amd64RHSA-2026:30050
rhbk/keycloakRocky
Fixed in:rhel9@sha256:ffedd9c68012f3ce5e6d3287775c589fcbe5ba6858afc6b2fd47663fce4b138b_amd64RHSA-2026:30084
Fixed in:rhel9@sha256:df587be8cab83d8da4cbc7e9d4e6ffcaa5cd779027238d51ee462941a680142e_s390xRHSA-2026:30084
Fixed in:rhel9-operator@sha256:d14691fa2b04762df8e788c63104611b75714f671604347347afb7f27ec6e592_arm64RHSA-2026:30084
Fixed in:rhel9@sha256:05b207815e7e032115df73466875ac10436fb304bec7322e7a0a1a919901fdab_arm64RHSA-2026:30050
Fixed in:rhel9-operator@sha256:502c9e94ad138d062ca6e81de89284f5bcc0d27595b193498cf35f7e1bff9a40_amd64RHSA-2026:30050
Fixed in:rhel9-operator@sha256:c88a14bcd41b509c2f10713403d6a3cde9a9d2e6f78311de43a9b3090f7fcb94_s390xRHSA-2026:30084
Fixed in:rhel9-operator@sha256:bb723943f57bf3f1b02f8b67e3aff2043b30f867dbf90155a5596b954073f57e_arm64RHSA-2026:30050
Fixed in:rhel9-operator@sha256:8b4788a5f7e7687f3cc98a80407057a915d516aa79ff2e879780fa13e3be738f_ppc64leRHSA-2026:30050
Fixed in:rhel9@sha256:4c7d38f4d628edcb59a1f066487f60c3874633d29c9aa0aaa5edd73ef0c5d9e3_arm64RHSA-2026:30084
Fixed in:rhel9@sha256:20440d38f4f71719a27184eeb8eca059dd39fa6c975dfa57529af586bbe7db11_ppc64leRHSA-2026:30084
Fixed in:operator-bundle@sha256:dc6f5cde01bde313152b99cbead708160e43be14804f0ff768123fa9f54b4a4b_amd64RHSA-2026:30050
Fixed in:rhel9@sha256:d94079e34e41affcb63b6094781e9e0bb0c1e15ae2f24c93ad7bf6353937ec9a_s390xRHSA-2026:30050
Fixed in:rhel9@sha256:70634542b3ae6f9c0593bd6a63d2e9fa4667c27d1cbf78c07bee4b1ebc1b6706_amd64RHSA-2026:30050
Fixed in:rhel9-operator@sha256:e0ff01fb6339ac11a495514a23a71a78bd947809fa0c9bc1a3bda7cdb59bc9ed_ppc64leRHSA-2026:30084
Fixed in:rhel9@sha256:183d2a02d613de6745e0741333c4d34d8544b74866efac9237c46f26114b8c66_ppc64leRHSA-2026:30050
Fixed in:rhel9-operator@sha256:c56fdf74f5055b2ed0aa1a5706f1fe5428692aaa4d107d2081fb7c6ee7d5ace0_s390xRHSA-2026:30050
Fixed in:operator-bundle@sha256:8e800f8ab196c4bbbaf4397e438a2e02e7dc9fd588feb6a6a813f730ab65b0ec_amd64RHSA-2026:30084
Fixed in:rhel9-operator@sha256:2e00190cd88d026765df408d00a63cee8ceb3cd27ddb43e41b37c85936f4e926_amd64RHSA-2026:30084

Remediation is compiled from vendor and distribution security advisories. Always confirm against the linked source for your exact version and platform.

CVSS v3 Vector

Exploitability

Attack VectorNetwork
Attack ComplexityLow
Privileges RequiredLow
User InteractionRequired
ScopeUnchanged

Impact

ConfidentialityLow
IntegrityLow
AvailabilityNone

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

Exploit Intelligence

0.17%probability of exploitation in 30 days
6thpercentile

Low risk: more likely to be exploited than 6% of all known CVEs.

References

Related Vulnerabilities

Other CWE-639 (Authorization Bypass Through User-Controlled Key) vulnerabilities, ordered by exploit likelihood. View all

CVESeverityCVSSEPSSExploitedFix
CVE-2023-6875Critical9.890%--
CVE-2024-46982High7.561%-Fix
CVE-2021-45428Critical9.857%--
CVE-2019-17382Critical9.154%-Fix
CVE-2019-13360Critical9.824%--
CVE-2023-48783Medium5.422%-Fix
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This product uses NVD data but is not endorsed or certified by the NVD. EPSS scores courtesy of FIRST.org (https://www.first.org/epss). Source: CISA KEV Catalog. Data as of 2026-07-01.