CVE & CISA-KEV Catalog

CVE-2026-9794

MEDIUM
5.3
CVSS v3
NVD

Description

A flaw was found in Keycloak. A remote, unauthenticated attacker can exploit this vulnerability by sending specially crafted SOAP requests to the SAML ECP (Security Assertion Markup Language Enhanced Client or Proxy) endpoint with varying client IDs. By observing distinct faultstrings in the responses, the attacker can determine the client's protocol type, leading to information disclosure.

CWE-209

How to fix

Remediation Available
rhbk/keycloakRed Hat / RHEL
Fixed in:rhel9@sha256:183d2a02d613de6745e0741333c4d34d8544b74866efac9237c46f26114b8c66_ppc64leRHSA-2026:30050
Fixed in:rhel9-operator@sha256:8b4788a5f7e7687f3cc98a80407057a915d516aa79ff2e879780fa13e3be738f_ppc64leRHSA-2026:30050
Fixed in:rhel9@sha256:70634542b3ae6f9c0593bd6a63d2e9fa4667c27d1cbf78c07bee4b1ebc1b6706_amd64RHSA-2026:30050
Fixed in:operator-bundle@sha256:dc6f5cde01bde313152b99cbead708160e43be14804f0ff768123fa9f54b4a4b_amd64RHSA-2026:30050
Fixed in:rhel9-operator@sha256:502c9e94ad138d062ca6e81de89284f5bcc0d27595b193498cf35f7e1bff9a40_amd64RHSA-2026:30050
Fixed in:rhel9@sha256:d94079e34e41affcb63b6094781e9e0bb0c1e15ae2f24c93ad7bf6353937ec9a_s390xRHSA-2026:30050
Fixed in:rhel9-operator@sha256:c56fdf74f5055b2ed0aa1a5706f1fe5428692aaa4d107d2081fb7c6ee7d5ace0_s390xRHSA-2026:30050
Fixed in:rhel9@sha256:05b207815e7e032115df73466875ac10436fb304bec7322e7a0a1a919901fdab_arm64RHSA-2026:30050
Fixed in:rhel9-operator@sha256:bb723943f57bf3f1b02f8b67e3aff2043b30f867dbf90155a5596b954073f57e_arm64RHSA-2026:30050
Fixed in:rhel9@sha256:acdf471dd72130f542d96f2066de14cee987d8d7c3c18eebfe7a9f6dd3ddcb8b_ppc64leRHSA-2026:25097
Fixed in:rhel9-operator@sha256:3e7730250bf4e80e6097bf585f6c56d26296abfd3a895b705fcb954fff5a6223_ppc64leRHSA-2026:25097
Fixed in:rhel9@sha256:749a914cbd258815ac1fb6ca8f6e8624c30c6b411a6f6f00f7204e6e9d053c79_arm64RHSA-2026:25097
Fixed in:rhel9-operator@sha256:091b92f4afb1a23d0fc927e4160e824237b46128ea700ceeba6a8197f2952e6f_arm64RHSA-2026:25097
Fixed in:rhel9@sha256:99222593645c093307b570651213c1695f74f7782f6922900688f8c4183d0c2c_amd64RHSA-2026:25097
Fixed in:operator-bundle@sha256:b32c3aaa65f4ea0ef5eca9ea14ba20f7a382a625acfeebf2b9f604caeaea143d_amd64RHSA-2026:25097
Fixed in:rhel9-operator@sha256:7230f239140c1e843bd0939ba086a285a183e3ed6c47b7fa72d55204f7fd5e54_amd64RHSA-2026:25097
Fixed in:rhel9@sha256:7e81ba378ddeb63a1a2fd2b85e9302a6430b44614a519e942bf410b376adc071_s390xRHSA-2026:25097
Fixed in:rhel9-operator@sha256:c71e3d3785552cb3f18bca097c7dac638fbc6e4d7af470da22b910181c0202c8_s390xRHSA-2026:25097
rhbk/keycloakRocky
Fixed in:rhel9@sha256:183d2a02d613de6745e0741333c4d34d8544b74866efac9237c46f26114b8c66_ppc64leRHSA-2026:30050
Fixed in:rhel9-operator@sha256:8b4788a5f7e7687f3cc98a80407057a915d516aa79ff2e879780fa13e3be738f_ppc64leRHSA-2026:30050
Fixed in:rhel9@sha256:70634542b3ae6f9c0593bd6a63d2e9fa4667c27d1cbf78c07bee4b1ebc1b6706_amd64RHSA-2026:30050
Fixed in:operator-bundle@sha256:dc6f5cde01bde313152b99cbead708160e43be14804f0ff768123fa9f54b4a4b_amd64RHSA-2026:30050
Fixed in:rhel9-operator@sha256:502c9e94ad138d062ca6e81de89284f5bcc0d27595b193498cf35f7e1bff9a40_amd64RHSA-2026:30050
Fixed in:rhel9@sha256:d94079e34e41affcb63b6094781e9e0bb0c1e15ae2f24c93ad7bf6353937ec9a_s390xRHSA-2026:30050
Fixed in:rhel9-operator@sha256:c56fdf74f5055b2ed0aa1a5706f1fe5428692aaa4d107d2081fb7c6ee7d5ace0_s390xRHSA-2026:30050
Fixed in:rhel9@sha256:05b207815e7e032115df73466875ac10436fb304bec7322e7a0a1a919901fdab_arm64RHSA-2026:30050
Fixed in:rhel9-operator@sha256:bb723943f57bf3f1b02f8b67e3aff2043b30f867dbf90155a5596b954073f57e_arm64RHSA-2026:30050
Fixed in:rhel9@sha256:acdf471dd72130f542d96f2066de14cee987d8d7c3c18eebfe7a9f6dd3ddcb8b_ppc64leRHSA-2026:25097
Fixed in:rhel9-operator@sha256:3e7730250bf4e80e6097bf585f6c56d26296abfd3a895b705fcb954fff5a6223_ppc64leRHSA-2026:25097
Fixed in:rhel9@sha256:749a914cbd258815ac1fb6ca8f6e8624c30c6b411a6f6f00f7204e6e9d053c79_arm64RHSA-2026:25097
Fixed in:rhel9-operator@sha256:091b92f4afb1a23d0fc927e4160e824237b46128ea700ceeba6a8197f2952e6f_arm64RHSA-2026:25097
Fixed in:rhel9@sha256:99222593645c093307b570651213c1695f74f7782f6922900688f8c4183d0c2c_amd64RHSA-2026:25097
Fixed in:operator-bundle@sha256:b32c3aaa65f4ea0ef5eca9ea14ba20f7a382a625acfeebf2b9f604caeaea143d_amd64RHSA-2026:25097
Fixed in:rhel9-operator@sha256:7230f239140c1e843bd0939ba086a285a183e3ed6c47b7fa72d55204f7fd5e54_amd64RHSA-2026:25097
Fixed in:rhel9@sha256:7e81ba378ddeb63a1a2fd2b85e9302a6430b44614a519e942bf410b376adc071_s390xRHSA-2026:25097
Fixed in:rhel9-operator@sha256:c71e3d3785552cb3f18bca097c7dac638fbc6e4d7af470da22b910181c0202c8_s390xRHSA-2026:25097

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 RequiredNone
User InteractionNone
ScopeUnchanged

Impact

ConfidentialityLow
IntegrityNone
AvailabilityNone

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

Exploit Intelligence

0.33%probability of exploitation in 30 days
25thpercentile

Low risk: more likely to be exploited than 25% of all known CVEs.

References

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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 2026-06-26.