CyberSecBulletin
CVE-2026-88967NVD status: Awaiting Analysis

A user with query access to an Azure Monitor data source in Grafana can cause server-side…

Published Updated By the CyberSecBulletin desk

CVE-2026-88967 is a high-severity improper input validation vulnerability in Grafana Enterprise from Grafana, with a CVSS 3.1 base score of 7.7 out of 10. It can be exploited remotely over the network by an attacker with a low-privileged account, without any action from a user. Affected Grafana Enterprise versions: 10.0.0 through 11.6.16; 12.0.0 through 12.2.10; 12.3.0 through 12.3.11, and others listed below. The record does not name a fixed version, so check the vendor advisory. There is no confirmed exploitation so far. EPSS estimates a 0.29% chance of exploitation within 30 days, which is low compared with other CVEs.

Next patch cycle

High severity with no evidence of exploitation so far.

What to do

  1. Check which version of Grafana Enterprise you run against the affected versions below, and install the vendor's latest release.
  2. Read the advisory on grafana.com for workarounds and exact fixed builds.

Affected products and versions

VendorProductAffected versionsFixed in
GrafanaGrafana Enterprise10.0.0 through 11.6.16; 12.0.0 through 12.2.10; 12.3.0 through 12.3.11; 12.4.0 through 12.4.13; 13.0.0 through 13.0.11; 13.1.0 through 13.1.8; 13.2.0 through 13.2.4Not stated
GrafanaGrafana OSS10.0.0 through 11.6.16; 12.0.0 through 12.2.10; 12.3.0 through 12.3.11; 12.4.0 through 12.4.13; 13.0.0 through 13.0.11; 13.1.0 through 13.1.8; 13.2.0 through 13.2.4Not stated

Version data comes from the organisation that assigned the CVE. Confirm against the vendor advisory before deciding you are unaffected.

How the severity score breaks down

Attack vector
NetworkCan be exploited remotely over a network, including the internet.
Attack complexity
LowNo special conditions are needed; the attack works reliably.
Privileges required
LowA basic user account is enough.
User interaction
NoneNo action by a victim is required.
Scope
ChangedThe attack can reach beyond the vulnerable component into other systems.
Confidentiality
HighAll data handled by the component can be read.
Integrity
NoneNothing can be modified.
Availability
NoneAvailability is not affected.

Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:N/A:N. Scored by CNA (grafana.com).

Official description

A user with query access to an Azure Monitor data source in Grafana can cause server-side requests to an attacker-controlled endpoint that disclose the data source's Azure access token (server-side request forgery).

Source: the CVE record as published by its numbering authority, via NVD and CVE.org.

The underlying weakness: Improper Input Validation

The product receives input or data, but it does not validate or incorrectly validates that the input has the properties that are required to process the data safely and correctly.

How developers prevent this class of flaw

  • Consider using language-theoretic security (LangSec) techniques that characterize inputs using a formal language and build recognizers for that language. This effectively requires parsing to be a distinct layer that effectively enforces a boundary between raw input and internal data representations, instead of allowing parser code to be scattered throughout the program, where it could be subject to errors or inconsistencies that create weaknesses.
  • Use an input validation framework such as Struts or the OWASP ESAPI Validation API. Note that using a framework does not automatically address all input validation problems; be mindful of weaknesses that could arise from misusing the framework itself (CWE-1173).
  • Understand all the potential areas where untrusted inputs can enter the product, including but not limited to: parameters or arguments, cookies, anything read from the network, environment variables, reverse DNS lookups, query results, request headers, URL components, e-mail, files, filenames, databases, and any external systems that provide data to the application. Remember that such inputs may be obtained indirectly through API calls.

More Improper Input Validation vulnerabilities (CWE-20)

Timeline

  1. CVE record published.
  2. CISA published its SSVC assessment (exploitation: none, automatable: no, technical impact: partial).
  3. Record last changed materially (score, affected products, status or references).

References

Other vulnerabilities in Grafana Enterprise

All Grafana Enterprise vulnerabilities

Recent Improper Input Validation vulnerabilities

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