RHSA-2025:15717

Vulnerability from csaf_redhat - Published: 2025-09-11 19:39 - Updated: 2026-04-01 13:32
Summary
Red Hat Security Advisory: Red Hat Single Sign-On 7.6.12 security update
Severity
Important
Notes
Topic: A new security update is now available for Red Hat Single Sign-On 7.6 from the Customer Portal.
Details: Red Hat Single Sign-On 7.6 is a standalone server, based on the Keycloak project, that provides authentication and standards-based single sign-on capabilities for web and mobile applications. This update to Red Hat Single Sign-On 7.6.12 includes a security update with important impact. Security fixes: * jackson-core: jackson-core Potential StackoverflowError (CVE-2025-52999)
Terms of Use: This content is licensed under the Creative Commons Attribution 4.0 International License (https://creativecommons.org/licenses/by/4.0/). If you distribute this content, or a modified version of it, you must provide attribution to Red Hat Inc. and provide a link to the original.

A nested data handling flaw was found in Jackson Core. When parsing particularly deeply nested data structures, a StackoverflowError can occur.

CWE-121 - Stack-based Buffer Overflow
Vendor Fix Before applying this update, make sure all previously released errata relevant to your system have been applied. For details on how to apply this update, refer to: https://access.redhat.com/articles/11258 https://access.redhat.com/errata/RHSA-2025:15717
Workaround To mitigate this vulnerability, the recommendation is to avoid parsing input files from untrusted sources that may have excessively deep nested data structures; anything with a depth over 1000.

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