{"schema_version": "1.7.0", "id": "RLSA-2026:44308", "modified": "2026-07-27T12:10:23.996458Z", "published": "2026-07-27T12:04:22.718076Z", "upstream": ["CVE-2026-6477"], "summary": "Important: libpq security update", "details": "The libpq package provides the PostgreSQL client library, which allows client programs to connect to PostgreSQL servers. \n\nSecurity Fix(es):\n\n* postgresql: PostgreSQL libpq: Buffer overflow allows server superuser to overwrite client stack memory (CVE-2026-6477)\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.", "severity": [{"type": "CVSS_V3", "score": "CVSS:3.1/AV:N/AC:L/PR:H/UI:R/S:C/C:H/I:H/A:H"}], "affected": [{"package": {"ecosystem": "Rocky Linux:9", "name": "libpq", "purl": "pkg:rpm/rocky-linux/libpq?distro=rocky-linux-9&epoch=0"}, "ranges": [{"type": "ECOSYSTEM", "events": [{"introduced": "0"}, {"fixed": "0:13.23-3.el9_8"}], "database_specific": {"yum_repository": "AppStream"}}]}], "references": [{"type": "ADVISORY", "url": "https://errata.rockylinux.org/RLSA-2026:44308"}, {"type": "REPORT", "url": "https://bugzilla.redhat.com/show_bug.cgi?id=2477442"}], "credits": [{"name": "Rocky Enterprise Software Foundation"}, {"name": "Red Hat"}]}