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grafana: Fix of 2 CVEs

Type: advisorySources: OSV

- CVE-2026-39821: update bundled golang.org/x/net to 0.55.0 so that IDNA ToASCII/ToUnicode reject Punycode-encoded labels that decode to an all-ASCII name, preventing hostname authorization bypass and privilege escalation

Products
grafana, grafana-selinux
Affected versions
Not specified
Fixed versions
10.2.6-15.el9_6.tuxcare.els13
CVEs
CVE-2026-39821
Confirmed fixed CVEs
Not specified
Updated in this feed
1 Nov 2026, 10:51 UTC · Revision 1

Source evidence

grafana: Fix of 2 CVEs

core-osv · Original source

Published 30 Jul 2026, 10:55 UTC

- CVE-2026-39821: update bundled golang.org/x/net to 0.55.0 so that IDNA ToASCII/ToUnicode reject Punycode-encoded labels that decode to an all-ASCII name, preventing hostname authorization bypass and privilege escalation

osv:CLSA-2026-1784024382

grafana

Fixed versions: 10.2.6-15.el9_6.tuxcare.els13

grafana-selinux

Fixed versions: 10.2.6-15.el9_6.tuxcare.els13

Complete source record
{
  "id": "29bcaf3f8e9e491004542eaf11894754d7f16072b71b50225818f4b7eacdfb20",
  "url": "https://osv.dev/vulnerability/CLSA-2026-1784024382",
  "method": "structured",
  "payload": {
    "kind": "advisory",
    "title": "grafana: Fix of 2 CVEs",
    "summary": "- CVE-2026-39821: update bundled golang.org/x/net to 0.55.0 so that IDNA ToASCII/ToUnicode reject Punycode-encoded labels that decode to an all-ASCII name, preventing hostname authorization bypass and privilege escalation",
    "evidence": "osv:CLSA-2026-1784024382",
    "products": [
      {
        "name": {
          "value": "grafana",
          "evidence": "/affected/0/package/name"
        },
        "prerequisites": [],
        "fixed_versions": [
          {
            "value": "10.2.6-15.el9_6.tuxcare.els13",
            "evidence": "/affected/0/ranges"
          }
        ],
        "affected_versions": []
      },
      {
        "name": {
          "value": "grafana-selinux",
          "evidence": "/affected/1/package/name"
        },
        "prerequisites": [],
        "fixed_versions": [
          {
            "value": "10.2.6-15.el9_6.tuxcare.els13",
            "evidence": "/affected/1/ranges"
          }
        ],
        "affected_versions": []
      }
    ],
    "severity": "unknown",
    "structured": {
      "id": "CLSA-2026-1784024382",
      "aliases": [
        "CLSA-2026-1784024382"
      ],
      "affected": [
        {
          "ranges": [
            {
              "type": "ECOSYSTEM",
              "events": [
                {
                  "introduced": "0"
                },
                {
                  "fixed": "10.2.6-15.el9_6.tuxcare.els13"
                }
              ]
            }
          ],
          "package": {
            "name": "grafana",
            "purl": "pkg:rpm/tuxcare/grafana?distro=almalinux-9.6",
            "ecosystem": "TuxCare:AlmaLinux:9.6"
          },
          "database_specific": {
            "source": "https://github.com/cloudlinux/tuxcare-osv/tree/main/data/els_os/almalinux9.6esu/CLSA-2026-1784024382.json"
          }
        },
        {
          "ranges": [
            {
              "type": "ECOSYSTEM",
              "events": [
                {
                  "introduced": "0"
                },
                {
                  "fixed": "10.2.6-15.el9_6.tuxcare.els13"
                }
              ]
            }
          ],
          "package": {
            "name": "grafana-selinux",
            "purl": "pkg:rpm/tuxcare/grafana-selinux?distro=almalinux-9.6",
            "ecosystem": "TuxCare:AlmaLinux:9.6"
          },
          "database_specific": {
            "source": "https://github.com/cloudlinux/tuxcare-osv/tree/main/data/els_os/almalinux9.6esu/CLSA-2026-1784024382.json"
          }
        }
      ],
      "modified": "2026-10-26T09:31:17.685351519Z",
      "provider": "osv",
      "upstream": [
        "CVE-2026-39821"
      ],
      "references": [
        "https://errata.tuxcare.com/els_os/tuxcare9.6esu/CLSA-2026-1784024382.html",
        "https://nvd.nist.gov/vuln/detail/CVE-2026-25681",
        "https://nvd.nist.gov/vuln/detail/CVE-2026-39821"
      ]
    },
    "related_cves": [
      {
        "value": "CVE-2026-39821",
        "evidence": "/upstream"
      }
    ],
    "security_relevant": true,
    "severity_evidence": null
  },
  "source_id": "core-osv",
  "document_id": 447564,
  "published_at": "2026-07-30T10:55:44+00:00"
}