Vulnerability-Lookup

CVE-2026-21723 (GCVE-0-2026-21723)

Vulnerability from cvelistv5 – Published: 2026-07-23 01:48 – Updated: 2026-08-27 17:22

Title

CVE-2026-21723 Record

Summary

The alertmanager templates test endpoint (/api/alertmanager/grafana/config/api/v1/templates/test) can execute templates with no memory limits. Mass-executing templates in a short period causes OOM and crashes the Grafana service. The endpoint requires very low privileges and is exploitable with anonymous access enabled.

Severity

5.3 (Medium)


                        
                          CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:N/I:N/A:H

SSVC

Exploitation: none Automatable: no Technical Impact: partial

CISA Coordinator · CISA-ADP (v2.0.3)

Decision recorded 2026-07-23 14:15 UTC

CWE

CWE-400 - Uncontrolled Resource Consumption

Assigner

GRAFANA mitre root

References

1 reference

URL	Tags
https://grafana.com/security/security-advisories/…	vendor-advisory

Impacted products

1 product

Vendor	Product	Version	CPE status
Grafana	Grafana OSS	Affected: 8.0.0 , ≤ 11.0.0 (semver) Affected: 11.0.0 , ≤ 11.6.10 (semver) Affected: 12.0.0 , ≤ 12.0.9 (semver) Affected: 12.1.0 , ≤ 12.1.6 (semver) Affected: 12.2.0 , ≤ 12.2.4 (semver) Affected: 12.3.0 , ≤ 12.3.2 (semver)	guessed

Date Public

2026-07-22 01:42

Credits

nacl (Researcher)

Show details on NVD website

JSON

To clipboard

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BDU:2026-12009 (CVE-2026-21723)

Vulnerability from fstec – Published: 2026-08-21 – Updated: 2026-08-21 – View on bdu.fstec.ru Fixed

Title

Уязвимость компонента Alertmanager Templates Test Endpoint платформы для мониторинга и наблюдения Grafana, позволяющая нарушителю вызвать отказ в обслуживании

Summary

Уязвимость компонента Alertmanager Templates Test Endpoint платформы для мониторинга и наблюдения Grafana связана с неконтролируемым расходом ресурсов. Эксплуатация уязвимости может позволить нарушителю, действующему удаленно, вызвать отказ в обслуживании

Severity

4.9 (Medium) CVSS 2.0


                      
                        AV:N/AC:H/Au:S/C:N/I:N/A:C

5.3 (Medium) CVSS 3.1


                      
                        CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:N/I:N/A:H

Class

Code vulnerability

Status

Confirmed by the vendor

Exploitation

Resource exhaustion

Incidents

Being clarified

Remediation

Software update

CWE

CWE-400 - Неконтролируемый расход ресурса («Истощение ресурса»)

Aliases

CVE-2026-21723

References

4 references

URL
https://github.com/advisories/GHSA-xcrm-48rh-35pj
https://grafana.com/security/security-advisories/cve-2026-21723
https://nvd.nist.gov/vuln/detail/CVE-2026-21723
https://redos.red-soft.ru/support/secure/

Impacted products

2 products from 2 vendors

Vendors

ООО «Ред Софт», Grafana Labs

Products

РЕД ОС (запись в едином реестре российских программ №3751), Grafana

Versions

7.3 (РЕД ОС), 8.0 (РЕД ОС), до 12.3.3 (Grafana), до 11.6.11 (Grafana), до 12.2.5 (Grafana), до 12.1.7 (Grafana), до 12.0.10 (Grafana)

Product types

Operating system, Application software

Platforms

ООО «Ред Софт» РЕД ОС 7.3 (запись в едином реестре российских программ №3751), ООО «Ред Софт» РЕД ОС 8.0 (запись в едином реестре российских программ №3751)

Mitigations

Использование рекомендаций производителя: https://grafana.com/security/security-advisories/cve-2026- Для Ред ОС: http://repo.red-soft.ru/redos/7.3c/x86_64/updates/ http://repo.red-soft.ru/redos/8.0/x86_64/updates/

JSON

To clipboard

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  "\u0418\u043d\u0444\u043e\u0440\u043c\u0430\u0446\u0438\u044f \u043e\u0431 \u0443\u0441\u0442\u0440\u0430\u043d\u0435\u043d\u0438\u0438": "\u0423\u044f\u0437\u0432\u0438\u043c\u043e\u0441\u0442\u044c \u0443\u0441\u0442\u0440\u0430\u043d\u0435\u043d\u0430",
  "\u041a\u043b\u0430\u0441\u0441 \u0443\u044f\u0437\u0432\u0438\u043c\u043e\u0441\u0442\u0438": "\u0423\u044f\u0437\u0432\u0438\u043c\u043e\u0441\u0442\u044c \u043a\u043e\u0434\u0430",
  "\u041d\u0430\u0437\u0432\u0430\u043d\u0438\u0435 \u041f\u041e": "\u0420\u0415\u0414 \u041e\u0421 (\u0437\u0430\u043f\u0438\u0441\u044c \u0432 \u0435\u0434\u0438\u043d\u043e\u043c \u0440\u0435\u0435\u0441\u0442\u0440\u0435 \u0440\u043e\u0441\u0441\u0438\u0439\u0441\u043a\u0438\u0445 \u043f\u0440\u043e\u0433\u0440\u0430\u043c\u043c \u21163751), Grafana",
  "\u041d\u0430\u0438\u043c\u0435\u043d\u043e\u0432\u0430\u043d\u0438\u0435 \u041e\u0421 \u0438 \u0442\u0438\u043f \u0430\u043f\u043f\u0430\u0440\u0430\u0442\u043d\u043e\u0439 \u043f\u043b\u0430\u0442\u0444\u043e\u0440\u043c\u044b": "\u041e\u041e\u041e \u00ab\u0420\u0435\u0434 \u0421\u043e\u0444\u0442\u00bb \u0420\u0415\u0414 \u041e\u0421 7.3  (\u0437\u0430\u043f\u0438\u0441\u044c \u0432 \u0435\u0434\u0438\u043d\u043e\u043c \u0440\u0435\u0435\u0441\u0442\u0440\u0435 \u0440\u043e\u0441\u0441\u0438\u0439\u0441\u043a\u0438\u0445 \u043f\u0440\u043e\u0433\u0440\u0430\u043c\u043c \u21163751), \u041e\u041e\u041e \u00ab\u0420\u0435\u0434 \u0421\u043e\u0444\u0442\u00bb \u0420\u0415\u0414 \u041e\u0421 8.0  (\u0437\u0430\u043f\u0438\u0441\u044c \u0432 \u0435\u0434\u0438\u043d\u043e\u043c \u0440\u0435\u0435\u0441\u0442\u0440\u0435 \u0440\u043e\u0441\u0441\u0438\u0439\u0441\u043a\u0438\u0445 \u043f\u0440\u043e\u0433\u0440\u0430\u043c\u043c \u21163751)",
  "\u041d\u0430\u0438\u043c\u0435\u043d\u043e\u0432\u0430\u043d\u0438\u0435 \u0443\u044f\u0437\u0432\u0438\u043c\u043e\u0441\u0442\u0438": "\u0423\u044f\u0437\u0432\u0438\u043c\u043e\u0441\u0442\u044c \u043a\u043e\u043c\u043f\u043e\u043d\u0435\u043d\u0442\u0430 Alertmanager Templates Test Endpoint \u043f\u043b\u0430\u0442\u0444\u043e\u0440\u043c\u044b \u0434\u043b\u044f \u043c\u043e\u043d\u0438\u0442\u043e\u0440\u0438\u043d\u0433\u0430 \u0438 \u043d\u0430\u0431\u043b\u044e\u0434\u0435\u043d\u0438\u044f Grafana, \u043f\u043e\u0437\u0432\u043e\u043b\u044f\u044e\u0449\u0430\u044f \u043d\u0430\u0440\u0443\u0448\u0438\u0442\u0435\u043b\u044e \u0432\u044b\u0437\u0432\u0430\u0442\u044c \u043e\u0442\u043a\u0430\u0437 \u0432 \u043e\u0431\u0441\u043b\u0443\u0436\u0438\u0432\u0430\u043d\u0438\u0438",
  "\u041d\u0430\u043b\u0438\u0447\u0438\u0435 \u044d\u043a\u0441\u043f\u043b\u043e\u0439\u0442\u0430": "\u0414\u0430\u043d\u043d\u044b\u0435 \u0443\u0442\u043e\u0447\u043d\u044f\u044e\u0442\u0441\u044f",
  "\u041e\u043f\u0438\u0441\u0430\u043d\u0438\u0435 \u043e\u0448\u0438\u0431\u043a\u0438 CWE": "\u041d\u0435\u043a\u043e\u043d\u0442\u0440\u043e\u043b\u0438\u0440\u0443\u0435\u043c\u044b\u0439 \u0440\u0430\u0441\u0445\u043e\u0434 \u0440\u0435\u0441\u0443\u0440\u0441\u0430 (\u00ab\u0418\u0441\u0442\u043e\u0449\u0435\u043d\u0438\u0435 \u0440\u0435\u0441\u0443\u0440\u0441\u0430\u00bb) (CWE-400)",
  "\u041e\u043f\u0438\u0441\u0430\u043d\u0438\u0435 \u0443\u044f\u0437\u0432\u0438\u043c\u043e\u0441\u0442\u0438": "\u0423\u044f\u0437\u0432\u0438\u043c\u043e\u0441\u0442\u044c \u043a\u043e\u043c\u043f\u043e\u043d\u0435\u043d\u0442\u0430 Alertmanager Templates Test Endpoint \u043f\u043b\u0430\u0442\u0444\u043e\u0440\u043c\u044b \u0434\u043b\u044f \u043c\u043e\u043d\u0438\u0442\u043e\u0440\u0438\u043d\u0433\u0430 \u0438 \u043d\u0430\u0431\u043b\u044e\u0434\u0435\u043d\u0438\u044f Grafana \u0441\u0432\u044f\u0437\u0430\u043d\u0430 \u0441 \u043d\u0435\u043a\u043e\u043d\u0442\u0440\u043e\u043b\u0438\u0440\u0443\u0435\u043c\u044b\u043c \u0440\u0430\u0441\u0445\u043e\u0434\u043e\u043c \u0440\u0435\u0441\u0443\u0440\u0441\u043e\u0432. \u042d\u043a\u0441\u043f\u043b\u0443\u0430\u0442\u0430\u0446\u0438\u044f \u0443\u044f\u0437\u0432\u0438\u043c\u043e\u0441\u0442\u0438 \u043c\u043e\u0436\u0435\u0442 \u043f\u043e\u0437\u0432\u043e\u043b\u0438\u0442\u044c \u043d\u0430\u0440\u0443\u0448\u0438\u0442\u0435\u043b\u044e, \u0434\u0435\u0439\u0441\u0442\u0432\u0443\u044e\u0449\u0435\u043c\u0443 \u0443\u0434\u0430\u043b\u0435\u043d\u043d\u043e, \u0432\u044b\u0437\u0432\u0430\u0442\u044c \u043e\u0442\u043a\u0430\u0437 \u0432 \u043e\u0431\u0441\u043b\u0443\u0436\u0438\u0432\u0430\u043d\u0438\u0438",
  "\u041f\u043e\u0441\u043b\u0435\u0434\u0441\u0442\u0432\u0438\u044f \u044d\u043a\u0441\u043f\u043b\u0443\u0430\u0442\u0430\u0446\u0438\u0438 \u0443\u044f\u0437\u0432\u0438\u043c\u043e\u0441\u0442\u0438": null,
  "\u041f\u0440\u043e\u0447\u0430\u044f \u0438\u043d\u0444\u043e\u0440\u043c\u0430\u0446\u0438\u044f": null,
  "\u0421\u0432\u044f\u0437\u044c \u0441 \u0438\u043d\u0446\u0438\u0434\u0435\u043d\u0442\u0430\u043c\u0438 \u0418\u0411": "\u0414\u0430\u043d\u043d\u044b\u0435 \u0443\u0442\u043e\u0447\u043d\u044f\u044e\u0442\u0441\u044f",
  "\u0421\u043e\u0441\u0442\u043e\u044f\u043d\u0438\u0435 \u0443\u044f\u0437\u0432\u0438\u043c\u043e\u0441\u0442\u0438": "\u041e\u043f\u0443\u0431\u043b\u0438\u043a\u043e\u0432\u0430\u043d\u0430",
  "\u0421\u043f\u043e\u0441\u043e\u0431 \u0443\u0441\u0442\u0440\u0430\u043d\u0435\u043d\u0438\u044f": "\u041e\u0431\u043d\u043e\u0432\u043b\u0435\u043d\u0438\u0435 \u043f\u0440\u043e\u0433\u0440\u0430\u043c\u043c\u043d\u043e\u0433\u043e \u043e\u0431\u0435\u0441\u043f\u0435\u0447\u0435\u043d\u0438\u044f",
  "\u0421\u043f\u043e\u0441\u043e\u0431 \u044d\u043a\u0441\u043f\u043b\u0443\u0430\u0442\u0430\u0446\u0438\u0438": "\u0418\u0441\u0447\u0435\u0440\u043f\u0430\u043d\u0438\u0435 \u0440\u0435\u0441\u0443\u0440\u0441\u043e\u0432",
  "\u0421\u0441\u044b\u043b\u043a\u0438 \u043d\u0430 \u0438\u0441\u0442\u043e\u0447\u043d\u0438\u043a\u0438": "https://github.com/advisories/GHSA-xcrm-48rh-35pj\nhttps://grafana.com/security/security-advisories/cve-2026-21723\nhttps://nvd.nist.gov/vuln/detail/CVE-2026-21723\nhttps://redos.red-soft.ru/support/secure/",
  "\u0421\u0442\u0430\u0442\u0443\u0441 \u0443\u044f\u0437\u0432\u0438\u043c\u043e\u0441\u0442\u0438": "\u041f\u043e\u0434\u0442\u0432\u0435\u0440\u0436\u0434\u0435\u043d\u0430 \u043f\u0440\u043e\u0438\u0437\u0432\u043e\u0434\u0438\u0442\u0435\u043b\u0435\u043c",
  "\u0422\u0438\u043f \u041f\u041e": "\u041e\u043f\u0435\u0440\u0430\u0446\u0438\u043e\u043d\u043d\u0430\u044f \u0441\u0438\u0441\u0442\u0435\u043c\u0430, \u041f\u0440\u0438\u043a\u043b\u0430\u0434\u043d\u043e\u0435 \u041f\u041e \u0438\u043d\u0444\u043e\u0440\u043c\u0430\u0446\u0438\u043e\u043d\u043d\u044b\u0445 \u0441\u0438\u0441\u0442\u0435\u043c",
  "\u0422\u0438\u043f \u043e\u0448\u0438\u0431\u043a\u0438 CWE": "CWE-400",
  "\u0423\u0440\u043e\u0432\u0435\u043d\u044c \u043e\u043f\u0430\u0441\u043d\u043e\u0441\u0442\u0438 \u0443\u044f\u0437\u0432\u0438\u043c\u043e\u0441\u0442\u0438": "\u0421\u0440\u0435\u0434\u043d\u0438\u0439 \u0443\u0440\u043e\u0432\u0435\u043d\u044c \u043e\u043f\u0430\u0441\u043d\u043e\u0441\u0442\u0438 (\u0431\u0430\u0437\u043e\u0432\u0430\u044f \u043e\u0446\u0435\u043d\u043a\u0430 CVSS 2.0 \u0441\u043e\u0441\u0442\u0430\u0432\u043b\u044f\u0435\u0442 4,9)\n\u0421\u0440\u0435\u0434\u043d\u0438\u0439 \u0443\u0440\u043e\u0432\u0435\u043d\u044c \u043e\u043f\u0430\u0441\u043d\u043e\u0441\u0442\u0438 (\u0431\u0430\u0437\u043e\u0432\u0430\u044f \u043e\u0446\u0435\u043d\u043a\u0430 CVSS 3.1 \u0441\u043e\u0441\u0442\u0430\u0432\u043b\u044f\u0435\u0442 5,3)"
}

bit-grafana-2026-21723

Vulnerability from bitnami_vulndb

Published

2026-07-29 08:50

Modified

2026-07-29 09:17

Summary

CVE-2026-21723 Record

Details

JSON

To clipboard

{
  "affected": [
    {
      "package": {
        "ecosystem": "Bitnami",
        "name": "grafana",
        "purl": "pkg:bitnami/grafana"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "8.0.0"
            },
            {
              "fixed": "11.6.11"
            },
            {
              "introduced": "12.0.0"
            },
            {
              "fixed": "12.0.10"
            },
            {
              "introduced": "12.1.0"
            },
            {
              "fixed": "12.1.7"
            },
            {
              "introduced": "12.2.0"
            },
            {
              "fixed": "12.2.5"
            },
            {
              "introduced": "12.3.0"
            },
            {
              "fixed": "12.3.3"
            }
          ],
          "type": "SEMVER"
        }
      ],
      "severity": [
        {
          "score": "CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:N/I:N/A:H",
          "type": "CVSS_V3"
        }
      ]
    }
  ],
  "aliases": [
    "CVE-2026-21723"
  ],
  "database_specific": {
    "cpes": [
      "cpe:2.3:a:grafana:grafana:*:*:*:*:*:*:*:*"
    ],
    "severity": "Medium"
  },
  "details": "The alertmanager templates test endpoint (/api/alertmanager/grafana/config/api/v1/templates/test) can execute templates with no memory limits. Mass-executing templates in a short period causes OOM and crashes the Grafana service. The endpoint requires very low privileges and is exploitable with anonymous access enabled.",
  "id": "BIT-grafana-2026-21723",
  "modified": "2026-07-29T09:17:40.827Z",
  "published": "2026-07-29T08:50:07.249Z",
  "references": [
    {
      "type": "WEB",
      "url": "https://grafana.com/security/security-advisories/cve-2026-21723"
    },
    {
      "type": "WEB",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-21723"
    }
  ],
  "schema_version": "1.6.2",
  "summary": "CVE-2026-21723 Record"
}

FKIE_CVE-2026-21723

Vulnerability from fkie_nvd - Published: 2026-07-23 03:16 - Updated: 2026-07-23 17:55

Severity

5.3 (Medium) - CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:N/I:N/A:H

Summary

References

	URL	Tags
	security@grafana.com	https://grafana.com/security/security-advisories/cve-2026-21723

Impacted products

	Vendor	Product	Version

JSON

To clipboard

{
  "affected": [
    {
      "affectedData": [
        {
          "defaultStatus": "unaffected",
          "product": "Grafana OSS",
          "vendor": "Grafana",
          "versions": [
            {
              "lessThanOrEqual": "11.0.0",
              "status": "affected",
              "version": "8.0.0",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "11.6.10",
              "status": "affected",
              "version": "11.0.0",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "12.0.9",
              "status": "affected",
              "version": "12.0.0",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "12.1.6",
              "status": "affected",
              "version": "12.1.0",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "12.2.4",
              "status": "affected",
              "version": "12.2.0",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "12.3.2",
              "status": "affected",
              "version": "12.3.0",
              "versionType": "semver"
            }
          ]
        }
      ],
      "source": "security@grafana.com"
    }
  ],
  "cveTags": [],
  "descriptions": [
    {
      "lang": "en",
      "value": "The alertmanager templates test endpoint (/api/alertmanager/grafana/config/api/v1/templates/test) can execute templates with no memory limits. Mass-executing templates in a short period causes OOM and crashes the Grafana service. The endpoint requires very low privileges and is exploitable with anonymous access enabled."
    }
  ],
  "id": "CVE-2026-21723",
  "lastModified": "2026-07-23T17:55:03.860",
  "metrics": {
    "cvssMetricV31": [
      {
        "cvssData": {
          "attackComplexity": "HIGH",
          "attackVector": "NETWORK",
          "availabilityImpact": "HIGH",
          "baseScore": 5.3,
          "baseSeverity": "MEDIUM",
          "confidentialityImpact": "NONE",
          "integrityImpact": "NONE",
          "privilegesRequired": "LOW",
          "scope": "UNCHANGED",
          "userInteraction": "NONE",
          "vectorString": "CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:N/I:N/A:H",
          "version": "3.1"
        },
        "exploitabilityScore": 1.6,
        "impactScore": 3.6,
        "source": "security@grafana.com",
        "type": "Secondary"
      }
    ],
    "ssvcV203": [
      {
        "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
        "ssvcData": {
          "id": "CVE-2026-21723",
          "options": [
            {
              "exploitation": "none"
            },
            {
              "automatable": "no"
            },
            {
              "technicalImpact": "partial"
            }
          ],
          "role": "CISA Coordinator",
          "timestamp": "2026-07-23T14:15:50.650728Z",
          "version": "2.0.3"
        }
      }
    ]
  },
  "published": "2026-07-23T03:16:30.000",
  "references": [
    {
      "source": "security@grafana.com",
      "url": "https://grafana.com/security/security-advisories/cve-2026-21723"
    }
  ],
  "sourceIdentifier": "security@grafana.com",
  "vulnStatus": "Deferred",
  "weaknesses": [
    {
      "description": [
        {
          "lang": "en",
          "value": "CWE-400"
        }
      ],
      "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
      "type": "Secondary"
    }
  ]
}

GHSA-XCRM-48RH-35PJ

Vulnerability from github – Published: 2026-07-23 03:34 – Updated: 2026-07-23 03:34

Details

Severity

5.3 (Medium)


                  
                    CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:N/I:N/A:H

Show details on source website

JSON

To clipboard

{
  "affected": [],
  "aliases": [
    "CVE-2026-21723"
  ],
  "database_specific": {
    "cwe_ids": [
      "CWE-400"
    ],
    "github_reviewed": false,
    "github_reviewed_at": null,
    "nvd_published_at": "2026-07-23T03:16:30Z",
    "severity": "MODERATE"
  },
  "details": "The alertmanager templates test endpoint (/api/alertmanager/grafana/config/api/v1/templates/test) can execute templates with no memory limits. Mass-executing templates in a short period causes OOM and crashes the Grafana service. The endpoint requires very low privileges and is exploitable with anonymous access enabled.",
  "id": "GHSA-xcrm-48rh-35pj",
  "modified": "2026-07-23T03:34:28Z",
  "published": "2026-07-23T03:34:28Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-21723"
    },
    {
      "type": "WEB",
      "url": "https://grafana.com/security/security-advisories/cve-2026-21723"
    }
  ],
  "schema_version": "1.4.0",
  "severity": [
    {
      "score": "CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:N/I:N/A:H",
      "type": "CVSS_V3"
    }
  ]
}

OPENSUSE-SU-2026:11619-1

Vulnerability from csaf_opensuse - Published: 2026-08-27 00:00 - Updated: 2026-09-17 17:21

Summary

grafana-12.4.5-4.1 on GA media

Severity

Moderate

Scope

6 vulnerabilities in this advisory, including CVE-2026-21723.

CVE-2026-21723

5.3 (Medium)


                
                  CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:N/I:N/A:H

Recommended: 4 products

Open the full advisory

RHSA-2026:63164

Vulnerability from csaf_redhat - Published: 2026-09-03 13:12 - Updated: 2026-09-18 19:28

Summary

Red Hat Security Advisory: Red Hat Hardened Images RPMs bug fix and enhancement update

Severity

Important

Scope

8 vulnerabilities in this advisory, including CVE-2026-21723.

CVE-2026-21723

A flaw was found in Grafana. A remote attacker with very low privileges, or even anonymous access if enabled, can exploit the alertmanager templates test endpoint by mass-executing templates. This can lead to an Out-Of-Memory (OOM) error, causing the Grafana service to crash and resulting in a Denial of Service (DoS).

5.3 (Medium)


                
                  CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:N/I:N/A:H

Fixed: 3 products

https://access.redhat.com/errata/RHSA-2026:63164

Open the full advisory

RHSA-2026:63165

Vulnerability from csaf_redhat - Published: 2026-09-03 13:19 - Updated: 2026-09-18 19:28

Summary

Red Hat Security Advisory: Red Hat Hardened Images RPMs bug fix and enhancement update

Severity

Important

Scope

6 vulnerabilities in this advisory, including CVE-2026-21723.

CVE-2026-21723

5.3 (Medium)


                
                  CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:N/I:N/A:H

Fixed: 3 products

https://access.redhat.com/errata/RHSA-2026:63165

Open the full advisory

RHSA-2026:65157

Vulnerability from csaf_redhat - Published: 2026-09-08 08:56 - Updated: 2026-09-15 10:21

Summary

Red Hat Security Advisory: Red Hat Hardened Images RPMs bug fix and enhancement update

Severity

Important

Scope

5 vulnerabilities in this advisory, including CVE-2026-21723.

CVE-2026-21723

5.3 (Medium)


                
                  CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:N/I:N/A:H

Fixed: 3 products

https://access.redhat.com/errata/RHSA-2026:65157

Open the full advisory

Sightings

Author	Source	Type	Date	Other

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.
Exploited: The vulnerability was observed as exploited by the user who reported the sighting.
Patched: The vulnerability was observed as successfully patched by the user who reported the sighting.
Not exploited: The vulnerability was not observed as exploited by the user who reported the sighting.
Not confirmed: The user expressed doubt about the validity of the vulnerability.
Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.

Detection rules are retrieved from Rulezet.

The MITRE ATT&CK techniques below are AI-generated suggestions, inferred from the description of the vulnerability by the CIRCL/vulnerability-attack-technique-classification-roberta-base model, served locally by ML-Gateway. They have not been verified by an analyst and are provided for guidance only.
The approach is described in our paper Mapping CVEs to MITRE ATT&CK Techniques: A Curated Gold-Set Classifier and the Limits of LLM-Assisted Label Expansion.
Browse all ATT&CK techniques and the vulnerabilities related to each.

Related by attack behaviour

Vulnerabilities whose description is nearest to this one in the vector space of the CIRCL/vulnerability-attack-technique-biencoder model. This is a similarity search over the bi-encoder space (plain cosine), not a classification, and it has no measured accuracy.

Action not permitted

CVE-2026-21723 (GCVE-0-2026-21723)

BDU:2026-12009 (CVE-2026-21723)

bit-grafana-2026-21723

Vulnerability from bitnami_vulndb

FKIE_CVE-2026-21723

GHSA-XCRM-48RH-35PJ

OPENSUSE-SU-2026:11619-1

RHSA-2026:63164

RHSA-2026:63165

RHSA-2026:65157

Tags

Sightings

Nomenclature

Related by attack behaviour