rlsa-2026:22304
Vulnerability from osv_rocky
Published
2026-06-02 18:03
Modified
2026-06-16 18:05
Summary
Important: postgresql-jdbc security update
Details

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.

Severity
7.5 (High)
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
Credits
Rocky Enterprise Software Foundation
Red Hat
References
To clipboard 

{
  "affected": [
    {
      "package": {
        "ecosystem": "Rocky Linux:9",
        "name": "postgresql-jdbc",
        "purl": "pkg:rpm/rocky-linux/postgresql-jdbc?distro=rocky-linux-9-x86-64\u0026epoch=0"
      },
      "ranges": [
        {
          "database_specific": {
            "yum_repository": "AppStream"
          },
          "events": [
            {
              "introduced": "0"
            },
            {
              "fixed": "0:42.2.28-2.el9_8.2"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ]
    }
  ],
  "credits": [
    {
      "name": "Rocky Enterprise Software Foundation"
    },
    {
      "name": "Red Hat"
    }
  ],
  "details": "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.\n\nSecurity Fix(es):\n\n* jdbc.postgresql.org: pgjdbc: Client-side Denial of Service via malicious SCRAM-SHA-256 authentication (CVE-2026-42198)\n\nFor 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.",
  "id": "RLSA-2026:22304",
  "modified": "2026-06-16T18:05:55.961190Z",
  "published": "2026-06-02T18:03:08.506628Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://errata.rockylinux.org/RLSA-2026:22304"
    },
    {
      "type": "REPORT",
      "url": "https://bugzilla.redhat.com/show_bug.cgi?id=2463857"
    }
  ],
  "schema_version": "1.7.0",
  "severity": [
    {
      "score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H",
      "type": "CVSS_V3"
    }
  ],
  "summary": "Important: postgresql-jdbc security update",
  "upstream": [
    "CVE-2026-42198"
  ]
}



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Sightings

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Nomenclature

  • Seen: The vulnerability was mentioned, discussed, or observed by the user.
  • Confirmed: The vulnerability has been validated from an analyst's perspective.
  • Published Proof of Concept: A public proof of concept is available for this vulnerability.
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  • Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.


Detection rules are retrieved from Rulezet.