Critical Vulnerabilities Found in Traefik and Grafana Require Immediate Patching

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Critical Vulnerabilities Found in Traefik and Grafana Require Immediate Patching

First seen 18 Aug 2026, 10:06 UTC • •72.0

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ThreatCluster •August 19, 2026 at 09:39 UTC

•CVE-2026-54763 allows identity spoofing via manipulated authentication headers in Traefik.
•CVE-2026-33377 enables privilege escalation in Grafana for users with Editor access.
•Affected versions of Traefik and Grafana must be patched immediately to prevent exploitation.

Multiple vulnerabilities have been identified in Traefik and Grafana, allowing attackers to spoof identities and escalate privileges. CVE-2026-54763, with a CVSS score of 8.8, affects Traefik's handling of authentication headers, enabling an authenticated attacker to inject malicious headers. CVE-2026-33377, scoring 7.1, allows an authenticated Grafana user with Editor access to overwrite dashboards not owned by them. These vulnerabilities affect specific versions of Traefik (prior to 2.11.51, 3.6.22, and 3.7.6) and Grafana (prior to 11.6.14, 12.2.8, 12.3.6, 12.4.3, and 13.0.1). Users are urged to update to the latest versions immediately to mitigate risks. Both vulnerabilities were published in 2026, with CVE-2026-54763 on July 6 and CVE-2026-33377 on May 13.

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Timeline

2026-05-13

CVE-2026-33377 published

Grafana vulnerability allows privilege escalation for Editor-level users, affecting multiple versions.

2026-07-06

CVE-2026-54763 published

Traefik vulnerability allows identity spoofing through improper header handling, affecting specific versions.

2026-08-18

Security updates released

HPE released patches for both vulnerabilities; users are advised to update promptly to mitigate risks.

More articles in this cluster (4)

Threat Graph

7 entities, 6 inferred relationships (STIX 2.1).

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Organization (1)

Grafana

Vulnerability (2)

CVE-2026-33377
CVE-2026-54763

Weakness (2)

CWE-287 - Improper Authentication
CWE-862 - Missing Authorization

Technique (1)

T1068 - Exploitation for Privilege Escalation

Affected Platform (1)

Traefik

Relationships

CVE-2026-33377 targets Traefik
CVE-2026-54763 targets Traefik
T1068 - Exploitation for Privilege Escalation targets Traefik
CVE-2026-33377 related to Grafana
CVE-2026-33377 related to CWE-287 - Improper Authentication
CVE-2026-33377 related to CWE-862 - Missing Authorization

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