Elasticsearch Datasource: Improper Limitation of a Pathname to a Restricted Directory
CVE-2026-106475 is a high-severity improper limitation of a pathname to a restricted directory vulnerability in Elasticsearch Datasource from Grafana, with a CVSS 3.1 base score of 7.1 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. The record lists version 12.9.6 as the first without the flaw, so updating Elasticsearch Datasource to that release or later removes the exposure. There is no confirmed exploitation so far. EPSS estimates a 0.18% chance of exploitation within 30 days, which is low compared with other CVEs.
High severity with no evidence of exploitation so far.
What to do
- Update Elasticsearch Datasource to 12.9.6 or a later version.
- Update Grafana OSS to 12.4.15 or a later version.
- Update Grafana Enterprise to 12.4.15 or a later version.
- Read the advisory on grafana.com for workarounds and exact fixed builds.
Affected products and versions
| Vendor | Product | Affected versions | Fixed in |
|---|---|---|---|
| Grafana | Elasticsearch Datasource | 12.4.2 up to, but not including, 12.9.6 | 12.9.6 |
| Grafana | Grafana OSS | 10.1.0 through 11.6.16; 12.0.0 through 12.2.10; 12.3.0 through 12.3.11; 12.4.0 up to, but not including, 12.4.15 | 12.4.15 |
| Grafana | Grafana Enterprise | 10.1.0 through 11.6.16; 12.0.0 through 12.2.10; 12.3.0 through 12.3.11; 12.4.0 up to, but not including, 12.4.15 | 12.4.15 |
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
- HighSuccess depends on conditions outside the attacker's control.
- 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
- LowLimited modification of data is possible.
- Availability
- NoneAvailability is not affected.
Vector: CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:C/C:H/I:L/A:N. Scored by CNA (grafana.com).
Official description
The Elasticsearch data source resource proxy forwards the request method and path to Elasticsearch using the data source's own credentials, without restricting them to the operations the plugin needs. A user who can query the data source can alter index mappings or reach other indices on the cluster. [Improper authorization / path validation]
Source: the CVE record as published by its numbering authority, via NVD and CVE.org.
The underlying weakness: Improper Limitation of a Pathname to a Restricted Directory
The product uses external input to construct a pathname that is intended to identify a file or directory that is located underneath a restricted parent directory, but the product does not properly neutralize special elements within the pathname that can cause the pathname to resolve to a location that is outside of the restricted directory.
How developers prevent this class of flaw
- For any security checks that are performed on the client side, ensure that these checks are duplicated on the server side, in order to avoid CWE-602. Attackers can bypass the client-side checks by modifying values after the checks have been performed, or by changing the client to remove the client-side checks entirely. Then, these modified values would be submitted to the server.
- Use a vetted library or framework that does not allow this weakness to occur or provides constructs that make this weakness easier to avoid.
- Use an application firewall that can detect attacks against this weakness. It can be beneficial in cases in which the code cannot be fixed (because it is controlled by a third party), as an emergency prevention measure while more comprehensive software assurance measures are applied, or to provide defense in depth.
More Improper Limitation of a Pathname to a Restricted Directory vulnerabilities (CWE-22)
Timeline
- CVE record published.
References
Recent Improper Limitation of a Pathname to a Restricted Directory vulnerabilities
- 8.8 High severity
- 8.8 High severity
- 7.4 High severity
- 9.8 Critical severity
- 7.2 High severity
- 7.2 High severity
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