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CVE-2026-17048— Keycloak-services: keycloak-services: vault-resolved rotated client secrets leaked via admin rest api

Quick assessment

Affected
Red Hat Red Hat build of Keycloak 26.6
Exploitation
No confirmed in-the-wild exploitation; assess based on exposure
Recommended action
Check the vendor advisory and references for a fixed version. If immediate upgrade is impossible, restrict exposure and increase monitoring.

Red Hat build of Keycloak是美国Red Hat公司开源的一款用于单点登录的Web应用。 Red Hat Build of Keycloak存在信息泄露漏洞，该漏洞源于边界实施不当，导致具有只读权限的委托管理员可以检索已解析的机密而非保险库占位符，从而导致敏感凭据泄露。

CVSS 5.5 · Medium EPSS 0.42% · P34

Possible ATT&CK Techniques 1 AI

T1530 · Data from Cloud Storage

Affected Version Matrix 9

VendorProduct Version RangeStatus
Red Hat Red Hat Build of Keycloak any unaffected
Red Hat Red Hat build of Keycloak 26.6 26.6.6-1< * unaffected
26.6-12< * unaffected
26.6-12< * unaffected
Red Hat Red Hat build of Keycloak 26.6.6 any unaffected
any unaffected
Red Hat Red Hat Data Grid 8 any unaffected
Red Hat Red Hat JBoss Enterprise Application Platform Expansion Pack any unaffected
Red Hat Red Hat Single Sign-On 7 any unaffected
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I. Basic Information for CVE-2026-17048

Vulnerability Information
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Vulnerability Title
Keycloak-services: keycloak-services: vault-resolved rotated client secrets leaked via admin rest api
Source: CVE Program / CVE List V5
Vulnerability Description
A flaw was found in the Keycloak Admin REST API, which is used to manage security realms and clients. The issue occurs when the system processes requests for rotated client secrets that are stored in a secure vault. Due to improper boundary enforcement, a delegated administrator with view-only permissions can retrieve the actual resolved secret instead of the vault placeholder, leading to the exposure of sensitive credentials.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:L/A:N
Source: CVE Program / CVE List V5
Vulnerability Type
信息暴露
Source: CVE Program / CVE List V5
Vulnerability Title
Red Hat Build of Keycloak 信息泄露漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
Red Hat build of Keycloak是美国Red Hat公司开源的一款用于单点登录的Web应用。 Red Hat Build of Keycloak存在信息泄露漏洞，该漏洞源于边界实施不当，导致具有只读权限的委托管理员可以检索已解析的机密而非保险库占位符，从而导致敏感凭据泄露。
Source: CNNVD (China National Vulnerability Database)
CVSS Information
N/A
Source: CNNVD (China National Vulnerability Database)
Vulnerability Type
N/A
Source: CNNVD (China National Vulnerability Database)

Affected Products

Vendor Product Affected Versions CPE Subscribe
Red Hat Red Hat build of Keycloak 26.6 26.6.6-1 ~ * cpe:/a:redhat:build_keycloak:26.6::el9
Red Hat Red Hat build of Keycloak 26.6 26.6-12 ~ * cpe:/a:redhat:build_keycloak:26.6::el9
Red Hat Red Hat build of Keycloak 26.6 26.6-12 ~ * cpe:/a:redhat:build_keycloak:26.6::el9
Red Hat Red Hat build of Keycloak 26.6.6 - cpe:/a:redhat:build_keycloak:26.6
Red Hat Red Hat build of Keycloak 26.6.6 - cpe:/a:redhat:build_keycloak:26.6
Red Hat Red Hat Build of Keycloak - cpe:/a:redhat:build_keycloak:
Red Hat Red Hat Data Grid 8 - cpe:/a:redhat:jboss_data_grid:8
Red Hat Red Hat JBoss Enterprise Application Platform Expansion Pack - cpe:/a:redhat:jbosseapxp
Red Hat Red Hat Single Sign-On 7 - cpe:/a:redhat:red_hat_single_sign_on:7

II. Public POCs for CVE-2026-17048

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III. Intelligence Information for CVE-2026-17048

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Vendor Advisories for CVE-2026-17048 (4)

Same Patch Batch · Red Hat · 2026-07-24 · 10 CVEs total

CVE-2026-17107 8.5 HIGH Cluster-proxy: impersonation-header injection grants cluster-admin on every managed cluste
CVE-2026-66337 6.5 MEDIUM Libsoup: libsoup: heap buffer over-read via integer underflow in soup_filter_input_stream_
CVE-2026-66339 6.5 MEDIUM Libsoup: libsoup: proxy credentials leak to destination server via proxy-authorization hea
CVE-2026-17059 6.5 MEDIUM Keycloak-services: keycloak-services: information disclosure via role-users endpoint bypas
CVE-2026-16743 5.5 MEDIUM Accountsservice: accountsservice: arbitrary file read via seticonfile for systemd-homed us
CVE-2026-16730 5.5 MEDIUM Dbus-broker: dbus-broker: session bus denial of service via emfile during peer setup
CVE-2026-16910 5.5 MEDIUM Quay: ssrf in red hat quay notification webhooks (slack/generic)
CVE-2026-66338 5.4 MEDIUM Libsoup: libsoup: http request smuggling via permissive chunk-size parsing in soup_body_in
CVE-2026-17039 3.1 LOW Pki-core: dogtag-pki: redhat-pki: pki-core: ca renewal request processing omits realm auth

IV. Related Vulnerabilities

Same product: Red Hat build of Keycloak 26.6
Same vendor: Red Hat
Same weakness: CWE-200

V. Comments for CVE-2026-17048

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