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Advisories the vendor has revised
Unauthorized broker instantiation via improper input validation in LDAP entries. Red Hat rates this important (CVSS 7.6). Weakness: CWE-90.
Denial of Service via improper input validation in STOMP connector. Red Hat rates this important (CVSS 7.5). Weakness: CWE-839.
Denial of Service via crafted WireFormatInfo frame. Red Hat rates this important (CVSS 7.5). Weakness: CWE-770.
Denial of Service via repeated BrokerInfo commands. Red Hat rates this important (CVSS 7.5). Weakness: CWE-770.
Apache ActiveMQ, Apache ActiveMQ All, Apache ActiveMQ Stomp: Unbounded header buffer in STOMP NIO codec. Red Hat rates this important (CVSS 7.5). Weakness: CWE-789.
Information disclosure due to broken temporary destination isolation. Red Hat rates this important (CVSS 8.2). Weakness: CWE-1220.
Denial of Service due to exponential-time complexity. Red Hat rates this important (CVSS 7.5). Weakness: CWE-1333. Red Hat lists fixing advisory RHSA-2026:35272 with package dotnet8-0-main-8.0.128-1.1.hum1, nodejs26-main-26.4.0-1.3.hum1, nodejs22-main-22.23.1-2.hum1, nodejs24-main-24.18.0-0.2.hum1.
Denial of Service via crafted input. Red Hat rates this important (CVSS 7.5). Weakness: CWE-1050. Red Hat lists fixing advisory RHSA-2026:37577 with package dotnet8-0-main-8.0.128-1.1.hum1.
Information disclosure via path traversal vulnerability. Red Hat rates this important (CVSS 7.5). Weakness: CWE-22.
Use-After-Free in Oj::Parser SAJ Long Key Callback. Red Hat rates this moderate.
Use-After-Free in Oj::Parser array_class/hash_class GC Marking. Red Hat rates this moderate.
Denial of Service via input string mutation during JSON parsing. Red Hat rates this moderate (CVSS 6.5). Weakness: CWE-825.
Stack Buffer Overflow in Oj.dump via Large Indent. Red Hat rates this moderate.
Information disclosure via uninitialized stack memory read. Red Hat rates this moderate (CVSS 5.3). Weakness: CWE-125.
Use-After-Free in parser symbol key cache toggle. Red Hat rates this moderate (CVSS 6.5). Weakness: CWE-825.
Information disclosure via unstripped credential headers during HTTP redirects. Red Hat rates this moderate (CVSS 6.5). Weakness: CWE-201.
Denial of Service via crafted PDF with missing stream length. Red Hat rates this moderate (CVSS 6.5). Weakness: CWE-770.
Information Disclosure via brute-force attack on hash function. Red Hat rates this moderate (CVSS 4.3). Weakness: CWE-916.
Denial of Service via Integer Overflow in FuzzyMatchV2 function. Red Hat rates this moderate (CVSS 5). Weakness: CWE-190.
A flaw was found in the Identity Provider (IdP) mapper component of Keycloak, which is used to manage how user information from external services is mapped to Keycloak users. An administrator with limited permissions to manage identity providers can exploit this flaw by creating a "Hardcoded Role" mapper that assigns high-level administrative roles (like realm-admin) to themselves or others. This allows a restricted administrator to bypass security checks and gain full control over the entire realm. The Red Hat Product Security team has assessed the severity of this vulnerability as Moderate, given that it requires the attacker to already possess high-level administrative privileges (manage-identity-providers). Successful exploitation allows an attacker to escalate their privileges to realm-admin, granting them full control over the Keycloak realm. The vulnerability's root cause is a failure to enforce proper authorization checks (specifically requireMapRole) within the Identity Provider mapper endpoint. Weakness: CWE-266. Affected Red Hat products: Red Hat Build of Keycloak. Red Hat does not currently list a fixing RHSA for this CVE.