CVE-2026-21725

Что произошло

A time-of-create-to-time-of-use (TOCTOU) vulnerability lets recently deleted-then-recreated data sources be re-deleted without permission to do so. This requires several very stringent conditions to be met: - The attacker must have admin access to the specific datasource prior to its first deletion. - Upon deletion, all steps within the attack must happen within the next 30 seconds and on the same pod of Grafana. - The attacker must delete the datasource, then someone must recreate it. - The new datasource must not have the attacker as an admin. - The new datasource must have the same UID as the prior datasource. These are randomised by default. - The datasource can now be re-deleted by the attacker. - Once 30 seconds are up, the attack is spent and cannot be repeated. - No datasource with any other UID can be attacked.

Что делать

dpkg-query -W -f='${Package}	${Version}\n'

rpm -qa --qf '%{NAME}\t%{VERSION}-%{RELEASE}\n'

Get-HotFix | Select-Object HotFixID, InstalledOn

Продукты и затронутые версии

{
  "status": "affected",
  "version": "v11.0.0",
  "lessThan": "v12.4.1",
  "versionType": "semver"
}

CVSS: оценки и векторы

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

Источники и ссылки

{
  "cwes": [
    "cve"
  ],
  "epss": {
    "source": "epss",
    "received_at": "2026-11-03T21:12:35.648147+00:00"
  },
  "title": {
    "source": "cve",
    "received_at": "2026-10-28T19:48:40.141556+00:00"
  },
  "scores": [
    "cve"
  ],
  "status": {
    "source": "cve",
    "received_at": "2026-10-28T19:48:40.141556+00:00"
  },
  "affected": [
    "cve"
  ],
  "published": {
    "source": "cve",
    "received_at": "2026-10-28T19:48:40.141556+00:00"
  },
  "solutions": [],
  "percentile": {
    "source": "epss",
    "received_at": "2026-11-03T21:12:35.648147+00:00"
  },
  "references": [
    "cve"
  ],
  "description": {
    "source": "cve",
    "received_at": "2026-10-28T19:48:40.141556+00:00"
  },
  "workarounds": [],
  "configurations": []
}

Хронология записи

1. Данные обновлены04.11.2026, 00:12
2. Данные обновлены03.11.2026, 00:11
3. Данные обновлены02.11.2026, 00:10
4. Данные обновлены31.10.2026, 11:57
5. Данные обновлены29.10.2026, 12:16
6. Опубликована28.10.2026, 22:48

Личная заметка и статус

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