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CVE-2026-17033— CVE-2026-17033 CVE Record

Quick assessment

Affected
Grafana Grafana OSS
Exploitation
No confirmed in-the-wild exploitation; assess based on exposure
Recommended action
Check the vendor advisory and references for a fixed version. If immediate upgrade is impossible, restrict exposure and increase monitoring.

Grafana OSS是Grafana公司开源的一款可视化监控与日志分析平台。 Grafana OSS 12.3.11及之前版本、12.4.0至12.4.9版本和13.0.0至13.0.7版本存在跨站脚本漏洞，该漏洞源于Grafana渲染alert.generatorURL时未对URL协议进行安全清理，导致攻击者控制的JavaScript在用户点击链接时执行，可能造成跨站脚本攻击。

CVSS 6.8 · Medium EPSS 0.22% · P12

Possible ATT&CK Techniques 1 AI

T1189 · Drive-by Compromise

Affected Version Matrix 3

VendorProduct Version RangeStatus
Grafana Grafana OSS ≤ 12.3.11 affected
12.4.0≤ 12.4.9 affected
13.0.0≤ 13.0.7 affected
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I. Basic Information for CVE-2026-17033

Vulnerability Information
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Vulnerability Title
CVE-2026-17033 CVE Record
Source: CVE Program / CVE List V5
Vulnerability Description
An authenticated attacker with Editor access or alert.instances.external:write can submit an external Alertmanager alert containing a controlled generatorURL. The attacker is authorized to create the alert, but not to execute script in another user's Grafana session. Grafana renders alert.generatorURL directly as the Alert Details See source LinkButton href without URL-scheme sanitization or a safe-protocol allowlist. The click interceptor's :// heuristic can be bypassed by placing :// inside a JavaScript comment. When a user with read access clicks See source, the browser executes attacker-controlled JavaScript in the Grafana origin with the clicking user's permissions.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:U/C:H/I:L/A:L
Source: CVE Program / CVE List V5
Vulnerability Type
在Web页面生成时对输入的转义处理不恰当(跨站脚本)
Source: CVE Program / CVE List V5
Vulnerability Title
Grafana OSS 跨站脚本漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
Grafana OSS是Grafana公司开源的一款可视化监控与日志分析平台。 Grafana OSS 12.3.11及之前版本、12.4.0至12.4.9版本和13.0.0至13.0.7版本存在跨站脚本漏洞，该漏洞源于Grafana渲染alert.generatorURL时未对URL协议进行安全清理，导致攻击者控制的JavaScript在用户点击链接时执行，可能造成跨站脚本攻击。
Source: CNNVD (China National Vulnerability Database)
CVSS Information
N/A
Source: CNNVD (China National Vulnerability Database)
Vulnerability Type
N/A
Source: CNNVD (China National Vulnerability Database)

Affected Products

Vendor Product Affected Versions CPE Subscribe
Grafana Grafana OSS 0 ~ 12.3.11 -

II. Public POCs for CVE-2026-17033

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III. Intelligence Information for CVE-2026-17033

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Vendor Advisories for CVE-2026-17033 (1)

IV. Related Vulnerabilities

Same product: Grafana OSS
Same vendor: Grafana
Same weakness: CWE-79