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Vulnerabilities

Vulnerability · CVE-2026-42129

Grafana: Schwachstelle ermöglicht Offenlegung von Informationen

Published Jun 22, 2026 · catalog updated Aug 27, 2026 · Grafana Grafana OSS

Last checked Nov 4, 2026. A connected source was read within the last 7 days.

Check if you run it

No confirmed exploitation is on record for CVE-2026-42129. EPSS is 0.44%. Act only if a listed version of Grafana Grafana OSS is installed.

Gaps on this record

  • No version range is stored. A customer cannot check an installed version against this record.
  • No vendor fix or required action is stored. Compare the linked advisory before you change production.

Same product and reporting

Severity
High7.7
Known exploitation
Not in CISA/VulnCheck KEV
EPSS
0.44%
Remediation
Advisory link
Affected products
vendor Grafana Grafana OSS

A user with Viewer permissions can use a path traversal in the Loki data source plugin to reach administrative Loki endpoints and read sensitive backend configuration and internal service information.

Are you affected?

Enter the version you run. The result uses only the ranges stored on this record.

The check returns affected, not affected, or incomplete. It does not guess a version that is missing from the record.

  • vendor Grafana Grafana OSSversion unspecified

How to fix CVE-2026-42129

  • No stored fix

    No vendor fix text is stored. Use the linked advisory before you change production.

  • Version check

    No version range is stored, so an installed version cannot be checked on this page.

  • Advisory

    Open the bsi record and follow its fix.

  • Official advisories

What to do

Three questions, each answered from this record only. Confirm the vendor advisory before you patch.

Should you patch?

No confirmed exploitation is on record for CVE-2026-42129. EPSS is 0.44%. Act only if a listed version of Grafana Grafana OSS is installed.

Which versions are affected?

Affected version ranges are not on this record. Compare the installed version with the linked vendor advisory before you change production.

What should an analyst verify?

CWE-22: Path Traversal. EPSS 0.44%. There is no CISA KEV listing. No Exploit-DB or Metasploit reference is linked. Use the source links for the original advisory.

Technology hubs

Grafana security

Code

The project this record applies to. Exploit listings stay in References.

No public source repository is identified for this product.

Timeline

Detection, updates, and resolution for this record.

  1. Aug 27, 2026 · CVE.org

    Updated

    A user with Viewer permissions can use a path traversal in the Loki data source plugin to reach administrative Loki endpoints and read sensitive backend configuration and internal service information.

  2. Nov 4, 2026 · BSI CERT-Bund

    Detected

    Grafana: Schwachstelle ermöglicht Offenlegung von Informationen

Sources

  • BSI CERT-BundGovernment advisoryCVE-2026-42129

    Grafana: Schwachstelle ermöglicht Offenlegung von Informationen

    wid.cert-bund.de
  • CVE.orgVulnerability recordCVE-2026-42129

    A user with Viewer permissions can use a path traversal in the Loki data source plugin to reach administrative Loki endpoints and read sensitive backend configuration and internal service information.

    cve.org

References

Freshness

Last verified in this catalog Nov 4, 2026. Significant claims (KEV, EPSS, CVSS, affected ranges) come from the source rows above — open the original publisher for the authoritative advisory.

  • CVE.orgNov 4, 2026
  • BSI CERT-BundNov 4, 2026