An important vulnerability (CVE-2026-25679, CVSS 7.5 HIGH) in Grafana involves incorrect parsing of IPv6 host literals in the net/url library, which could be exploited to manipulate URL processing. This security update addresses the issue for Grafana packages on Red Hat Enterprise Linux 8.4 Advanced Mission Critical and Extended Update Support channels. The fixed packages provided are version grafana-7.3.6-13.el8_4.
Red Hat Product Errata RHSA-2026:9043 - Security Advisory Issued: 2026-04-20 Updated: 2026-04-20 RHSA-2026:9043 - Security Advisory Overview Updated Packages Synopsis Important: grafana security update Type/Severity Security Advisory: Important Red Hat Lightspeed patch analysis Identify and remediate systems affected by this advisory. View affected systems Topic An update for grafana is now available for Red Hat Enterprise Linux 8.4 Advanced Mission Critical Update Support and Red Hat Enterprise Linux 8.4 Extended Update Support Long-Life Add-On. Red Hat Product Security has rated this update as having a security impact of Important. A Common Vulnerability Scoring System (CVSS) base score, which gives a detailed severity rating, is available for each vulnerability from the CVE link(s) in the References section. Description Grafana is an open source, feature rich metrics dashboard and graph editor for Graphite, InfluxDB & OpenTSDB. Security Fix(es): net/url: Incorrect parsing of IPv6 host literals in net/url (CVE-2026-25679) 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. Solution For details on how to apply this update, which includes the changes described in this advisory, refer to: https://access.redhat.com/articles/11258 Affected Products Red Hat Enterprise Linux for x86_64 - Extended Update Support Extension 8.4 x86_64 Red Hat Enterprise Linux Server - AUS 8.4 x86_64 Fixes BZ - 2445356 - CVE-2026-25679 net/url: Incorrect parsing of IPv6 host literals in net/url CVEs CVE-2026-25679 References https://access.redhat.com/security/updates/classification/#important Note: More recent versions of these packages may be available. Click a package name for more details. Red Hat Enterprise Linux for x86_64 - Extended Update Support Extension 8.4 SRPM grafana-7.3.6-13.el8_4.src.rpm SHA-256: e90705c51057604d817deed9070daf39183cc527b918449785019a3a4feddd20 x86_64 grafana-7.3.6-13.el8_4.x86_64.rpm SHA-256: 3b026780e465808dbd122b92217c3e0c16c01d4b1c5b942980ece3eba9d73c6b grafana-debuginfo-7.3.6-13.el8_4.x86_64.rpm SHA-256: 50c57c0ccbf3cfab66a5eb0e55edd858d7db02da38d2c8d639e1ab801c0f6909 Red Hat Enterprise Linux Server - AUS 8.4 SRPM grafana-7.3.6-13.el8_4.src.rpm SHA-256: e90705c51057604d817deed9070daf39183cc527b918449785019a3a4feddd20 x86_64 grafana-7.3.6-13.el8_4.x86_64.rpm SHA-256: 3b026780e465808dbd122b92217c3e0c16c01d4b1c5b942980ece3eba9d73c6b grafana-debuginfo-7.3.6-13.el8_4.x86_64.rpm SHA-256: 50c57c0ccbf3cfab66a5eb0e55edd858d7db02da38d2c8d639e1ab801c0f6909 The Red Hat security contact is secalert@redhat.com . More contact details at https://access.redhat.com/security/team/contact/ .