EUVD-2026-38309
GHSA-3w66-95m3-8jxg
Severity by source
AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
Network-reachable HTTP service, no authentication or user interaction required per advisory framing, and impact limited to availability with no confidentiality or integrity loss.
Primary rating from Vendor (vendor:alpine).
CVSS VectorVendor: vendor:alpine
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
Lifecycle Timeline
5DescriptionCVE.org
Alpine Linux: grafana fixed in 12.4.4-r0
AnalysisAI
Denial of service in Grafana prior to 12.4.4-r0 allows remote unauthenticated attackers to disrupt service availability over the network with low complexity. Alpine Linux has shipped the fixed package version, and no public exploit identified at time of analysis. …
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Attack ChainAIDerived
Hypothetical attack flow derived from CVE metadata
Vulnerability AssessmentAI
| Exploitation | No special conditions - remote unauthenticated exploitation against default configurations of Grafana, with the only requirement being network reachability to the Grafana HTTP listener (typically TCP/3000) on a version prior to the Alpine-packaged 12.4.4-r0 fix. … Additional conditions and limiting factors are described in the full assessment. |
| Risk Assessment | The CVSS 3.1 base score of 7.5 (High) reflects a network-reachable, low-complexity, unauthenticated attack producing high availability impact with no confidentiality or integrity loss. … Full risk analysis with EPSS, KEV, and SSVC signal comparison available after sign-in. |
| Exploit Scenario | An attacker who can reach a vulnerable Grafana instance over the network sends a single crafted HTTP request to a pre-authentication endpoint, triggering a condition that exhausts resources or crashes the server process and rendering monitoring dashboards unavailable. Because the CVSS vector requires no privileges and no user interaction, the scenario is repeatable and can be scripted to keep the service down. … |
| Remediation | Vendor-released patch: Alpine Linux grafana package version 12.4.4-r0 - upgrade via 'apk upgrade grafana' on affected Alpine systems, and consult https://grafana.com/security/security-advisories/cve-2026-42127 for upstream Grafana versioning guidance applicable to non-Alpine deployments. … Detailed patch versions, workarounds, and compensating controls in full report. |
Recommended ActionAI
Within 24 hours: Verify current Grafana version in production and identify all instances running pre-12.4.4-r0 versions. …
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Same technique Denial Of Service
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External POC / Exploit Code
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