Red Hat Security Advisory: Red Hat build of Quarkus 3.27.3.SP2 security update
PostgreSQL is an advanced object-relational database management system. The postgresql-jdbc package includes the .jar files needed for Java programs to access a PostgreSQL database. Security Fix(es): * jdbc.postgresql.org: pgjdbc: Client-side Denial of Service via malicious SCRAM-SHA-256 authentication (CVE-2026-42198) For more details about the security issue(s), including the impact, a CVSS score, acknowledgments, and other related information, refer to the CVE page(s) listed in the References section.
AI Analysis
Technical Summary
CVE-2026-42198 is a vulnerability in the PostgreSQL JDBC driver (pgjdbc) used by the Red Hat build of Quarkus 3.27.3.SP2. It allows a client-side denial of service attack triggered by malicious SCRAM-SHA-256 authentication attempts. Red Hat has released an update in Quarkus 3.27.3.SP2 that includes a fix for this issue. The advisory classifies the security impact as important, indicating a significant but not critical risk. No known exploits in the wild have been reported. The vulnerability is categorized under CWE-770 (Allocation of Resources Without Limits or Throttling).
Potential Impact
The vulnerability enables an attacker to cause a denial of service on the client side by exploiting the SCRAM-SHA-256 authentication mechanism in the PostgreSQL JDBC driver. This could disrupt normal client operations that rely on database connectivity via pgjdbc. There is no indication of remote code execution or data breach from the provided information. No known active exploitation has been reported.
Mitigation Recommendations
Red Hat has released an updated version of the Red Hat build of Quarkus (3.27.3.SP2) that includes a fix for CVE-2026-42198. Users should apply this update to remediate the vulnerability. Before applying this update, ensure all previously released relevant errata have been applied. Refer to Red Hat's official update instructions at https://access.redhat.com/articles/11258 for proper update procedures.
Red Hat Security Advisory: Red Hat build of Quarkus 3.27.3.SP2 security update
Description
PostgreSQL is an advanced object-relational database management system. The postgresql-jdbc package includes the .jar files needed for Java programs to access a PostgreSQL database. Security Fix(es): * jdbc.postgresql.org: pgjdbc: Client-side Denial of Service via malicious SCRAM-SHA-256 authentication (CVE-2026-42198) For more details about the security issue(s), including the impact, a CVSS score, acknowledgments, and other related information, refer to the CVE page(s) listed in the References section.
Affected software
Weaknesses
AI-Powered Analysis
Machine-generated threat intelligence
Technical Analysis
CVE-2026-42198 is a vulnerability in the PostgreSQL JDBC driver (pgjdbc) used by the Red Hat build of Quarkus 3.27.3.SP2. It allows a client-side denial of service attack triggered by malicious SCRAM-SHA-256 authentication attempts. Red Hat has released an update in Quarkus 3.27.3.SP2 that includes a fix for this issue. The advisory classifies the security impact as important, indicating a significant but not critical risk. No known exploits in the wild have been reported. The vulnerability is categorized under CWE-770 (Allocation of Resources Without Limits or Throttling).
Potential Impact
The vulnerability enables an attacker to cause a denial of service on the client side by exploiting the SCRAM-SHA-256 authentication mechanism in the PostgreSQL JDBC driver. This could disrupt normal client operations that rely on database connectivity via pgjdbc. There is no indication of remote code execution or data breach from the provided information. No known active exploitation has been reported.
Mitigation Recommendations
Red Hat has released an updated version of the Red Hat build of Quarkus (3.27.3.SP2) that includes a fix for CVE-2026-42198. Users should apply this update to remediate the vulnerability. Before applying this update, ensure all previously released relevant errata have been applied. Refer to Red Hat's official update instructions at https://access.redhat.com/articles/11258 for proper update procedures.
Technical Details
- Gcve Source
- db.gcve.eu
- Csaf Category
- csaf_security_advisory
- Csaf Version
- 2.0
- Publisher
- Red Hat Product Security
- Advisory Id
- RHSA-2026:22304
- Cve Count
- 1
- Additional Cves
- []
- Cvss Version
- null
Threat ID: 6a1df668e29bf47b50460cf1
Added to database: 06/01/2026, 21:15:20 UTC
Last enriched: 07/10/2026, 11:45:37 UTC
Last updated: 07/31/2026, 19:22:58 UTC
Views: 142
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