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CVE-2026-0603 Red Hat CVE debrief

A high-severity vulnerability, CVE-2026-0603, has been identified in Hibernate, a popular Java framework for building robust and scalable applications. This vulnerability, with a CVSS score of 8.3, allows remote attackers with low privileges to exploit a second-order SQL injection vulnerability. By providing specially crafted, unsanitized non-alphanumeric characters in the ID column when the InlineIdsOrClauseBuilder is used, attackers can lead to sensitive information disclosure, such as reading system files, and allow for data manipulation or deletion within the application's database, resulting in an application-level denial of service. The vulnerability was first disclosed on January 23, 2026, and has since been modified on June 30, 2026. Users of affected versions should apply patches or mitigations as soon as possible to prevent exploitation.

Vendor
Red Hat
Product
Red Hat JBoss Enterprise Application Platform
CVSS
HIGH 8.3
CISA KEV
Not listed in stored evidence
Original CVE published
2026-01-23
Original CVE updated
2026-08-19
Advisory published
2026-01-23
Advisory updated
2026-08-19

Who should care

Security teams and administrators responsible for applications built using Hibernate should prioritize patching this vulnerability. Given the high CVSS score and potential impact, swift action is necessary to prevent potential data breaches and service disruptions. Additionally, developers using Hibernate in their applications should review their code to ensure proper input validation and sanitization.

Technical summary

CVE-2026-0603 is a second-order SQL injection vulnerability in Hibernate's InlineIdsOrClauseBuilder. Remote attackers with low privileges can exploit this vulnerability by providing specially crafted input, potentially leading to sensitive information disclosure, data manipulation, or deletion, and application-level denial of service. The vulnerability's CVSS vector is CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:L, indicating a high severity. The CWE associated with this vulnerability is CWE-89: Improper Neutralization of Special Elements used in an SQL Command ('SQL Injection').

Defensive priority

High. Immediate patching or mitigation is recommended to prevent potential exploitation.

Recommended defensive actions

  • Apply patches or updates provided by the vendor as soon as possible.
  • Review and ensure proper input validation and sanitization in applications using Hibernate.
  • Implement additional monitoring and logging to detect potential exploitation attempts.
  • Conduct a thorough inventory of systems and applications using vulnerable versions of Hibernate.
  • Consider implementing compensating controls, such as Web Application Firewalls (WAFs), to detect and prevent SQL injection attacks.

Evidence notes

The CVE record and NVD detail provide official information about the vulnerability. Red Hat has provided several errata and a security advisory related to this vulnerability. The Bugzilla entry provides additional details about the issue.

Sources and references

Verified primary and authoritative sources

  • CVE-2026-0603 CVE Program record

    Publisher, destination, and source semantics verified

    URL: https://www.cve.org/CVERecord?id=CVE-2026-0603

    CVE Program - Official CVE Program record with source-provided CVE metadata.

  • CVE-2026-0603 NVD vulnerability detail

    Publisher, destination, and source semantics verified

    URL: https://nvd.nist.gov/vuln/detail/CVE-2026-0603

    NIST National Vulnerability Database - Official NIST NVD detail page and source-specific vulnerability assessment.

Supplemental references

Methodology and review provenance

AI-assisted synthesis based on stored public vulnerability evidence. System validation, approval state, and publication status do not by themselves establish human review of this revision. PatchSiren helps prioritize defensive review and does not prove exposure or remediation on any system.